[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
This bug was fixed in the package thermald - 1.9.1-1ubuntu0.2 --- thermald (1.9.1-1ubuntu0.2) focal; urgency=medium * Performance workaround for Dell 7390 2-in-1 Ice Lake (LP: #1874933) - 5.4 kernel added support for "Processor thermal device" for Ice Lake via the PPCC power tables. The power table specified for Dell 7390 2-in-1 specifies this as 9W so thermald will limit it to this. This is a workaround that will ignore power limits less than the power up power limit to workaround this throttling. Requires a couple of prerequisite patches to apply and final 2 patches for the fix. - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit -- Colin King Mon, 18 May 2020 09:26:23 +0100 ** Changed in: thermald (Ubuntu Focal) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Fix Released Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == Open two terminals: -In the first terminal run the following command: "sudo turbostat --show PkgWatt" -In the second terminal run some all CPU busy workload, like stress-ng or mprime After few seconds turbostat will show that power is capped around 9W. Install the updated thermald, and repeat. Now with this fix the power should be capped around 15W. == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
# dpkg -l thermald | cat Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==---= ii thermald 1.9.1-1ubuntu0.2 amd64Thermal monitoring and controlling daemon hardware Handle 0x0100, DMI type 1, 27 bytes System Information Manufacturer: Dell Inc. Product Name: XPS 13 7390 2-in-1 Version: Not Specified -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Fix Committed Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == Open two terminals: -In the first terminal run the following command: "sudo turbostat --show PkgWatt" -In the second terminal run some all CPU busy workload, like stress-ng or mprime After few seconds turbostat will show that power is capped around 9W. Install the updated thermald, and repeat. Now with this fix the power should be capped around 15W. == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
** Tags removed: verification-needed verification-needed-focal ** Tags added: verification-done-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Fix Committed Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == Open two terminals: -In the first terminal run the following command: "sudo turbostat --show PkgWatt" -In the second terminal run some all CPU busy workload, like stress-ng or mprime After few seconds turbostat will show that power is capped around 9W. Install the updated thermald, and repeat. Now with this fix the power should be capped around 15W. == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
Used version #apt list | grep thermald thermald/now 1.9.1-1ubuntu0.2 amd64 [installed,local] -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Fix Committed Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == Open two terminals: -In the first terminal run the following command: "sudo turbostat --show PkgWatt" -In the second terminal run some all CPU busy workload, like stress-ng or mprime After few seconds turbostat will show that power is capped around 9W. Install the updated thermald, and repeat. Now with this fix the power should be capped around 15W. == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
The attached file contains two screen shots: - power_limit_before.png (old version thermald/now 1.9.1-1ubuntu0.1 amd64) - power_limit_after.png (new version thermald/now 1.9.1-1ubuntu0.2 amd64) Under "stress" workload, the max power consumed is capped below 9W. With the new version it is maintaining up to 15W. So the proposed version ignored PPCC power limit of 9W. ** Attachment added: "power_limits.tar.xz" https://bugs.launchpad.net/ubuntu/focal/+source/thermald/+bug/1874933/+attachment/5386871/+files/power_limits.tar.xz -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Fix Committed Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == Open two terminals: -In the first terminal run the following command: "sudo turbostat --show PkgWatt" -In the second terminal run some all CPU busy workload, like stress-ng or mprime After few seconds turbostat will show that power is capped around 9W. Install the updated thermald, and repeat. Now with this fix the power should be capped around 15W. == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
I've added the testcase to the bug description. That seems like a sensible enough reproducer. ** Description changed: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == - As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x - -org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake- - performance-hit-hard-by-a-linux-kernel-regression?view=stream + Open two terminals: + -In the first terminal run the following command: +"sudo turbostat --show PkgWatt" + -In the second terminal run some all CPU busy workload, like stress-ng or mprime + + After few seconds turbostat will show that power is capped around 9W. + + Install the updated thermald, and repeat. + + Now with this fix the power should be capped around 15W. == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- ** Changed in: thermald (Ubuntu Focal) Status: Incomplete => Fix Committed ** Tags added: verification-needed verification-needed-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Fix Committed Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == Open two terminals: -In the first terminal run the following command: "sudo turbostat --show PkgWatt" -In
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
What else is needed here? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Incomplete Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == As reported here: https://www.phoronix.com/forums/forum/linux- graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice- lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
To reproduce this: Boot Ubuntu 20.04 LTS (Focal Fossa)with 5.4 kernel. Open two terminals: -In the first terminal run the following command "turbostat --show PkgWatt" -In the second terminal run some all CPU busy workload, like stress-ng or mprime After few seconds turbostat will show that power is capped around 9W. Now with this fix the power will be capped around 15W. So you gain performance worth 6W. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Incomplete Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == As reported here: https://www.phoronix.com/forums/forum/linux- graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice- lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
This is blocked on someone writing a test case as requested by Łukasz in comment 10. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Incomplete Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == As reported here: https://www.phoronix.com/forums/forum/linux- graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice- lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
Is this fix going to be released? Or, abandoned? I got a XPS-13-7390-2-in-1, and was waiting for the release of this fix. If necessary, I may want to provide a test. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Incomplete Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == As reported here: https://www.phoronix.com/forums/forum/linux- graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice- lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
For such a big code change I would like to see a clear test case before approving this SRU. Currently the test case is "As reported here: ", which is not very easy-to-follow. Actually, even on the phoronix post, without proper context, I can't really easily find any reproduction steps. How would one formally check if performance workaround really works? Can you outline those in the bug description? I don't want to reject this upload from the queue as it is good in principle, but for such a big diff I'd like to have a decent test-case, if possible. ** Changed in: thermald (Ubuntu Focal) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Incomplete Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == As reported here: https://www.phoronix.com/forums/forum/linux- graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice- lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
** Also affects: thermald (Ubuntu Focal) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Status in thermald source package in Focal: Incomplete Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == As reported here: https://www.phoronix.com/forums/forum/linux- graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice- lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
** Changed in: thermald (Ubuntu) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Fix Released Bug description: == SRU justification focal == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: - eeadf7d2efe Restore to min state on deactivation without depending on hardware state - 9a6dc27879a Clean up the code and documentation Two upstream commits for the fix: - f7db4342933 Avoid polling power in non PPCC case - c3461690eaf Ignore invalid PPCC max power limit == Test case == As reported here: https://www.phoronix.com/forums/forum/linux- graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice- lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. Note that these changes are already in thermald 2.1 that is now in Ubuntu Groovy 20.10. --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
** Description changed: + == SRU justification focal == + + As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. + + == Fix == + + Two upstream commits to ease backporting: +- eeadf7d2efe Restore to min state on deactivation without + depending on hardware state +- 9a6dc27879a Clean up the code and documentation + + Two upstream commits for the fix: +- f7db4342933 Avoid polling power in non PPCC case +- c3461690eaf Ignore invalid PPCC max power limit + + == Test case == + + As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x + -org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake- + performance-hit-hard-by-a-linux-kernel-regression?view=stream + + == Regression Potential == + + This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with + poorly defined PPCC power tables because it now ignores the power limits + less than the power up limits. Users will see their machines run faster + and hence active cooling may crank up (e.g. fans) but I think the speed + improvement outweighs the noise factor. + + --- ** Description changed: == SRU justification focal == - As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. == Fix == Two upstream commits to ease backporting: -- eeadf7d2efe Restore to min state on deactivation without - depending on hardware state -- 9a6dc27879a Clean up the code and documentation + - eeadf7d2efe Restore to min state on deactivation without + depending on hardware state + - 9a6dc27879a Clean up the code and documentation - Two upstream commits for the fix: -- f7db4342933 Avoid polling power in non PPCC case -- c3461690eaf Ignore invalid PPCC max power limit + Two upstream commits for the fix: + - f7db4342933 Avoid polling power in non PPCC case + - c3461690eaf Ignore invalid PPCC max power limit == Test case == As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x -org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake- performance-hit-hard-by-a-linux-kernel-regression?view=stream == Regression Potential == This fix involves changing the power limits logic so there is a potential that this may affect change the throttling behaviour of other systems with poorly defined PPCC power tables because it now ignores the power limits less than the power up limits. Users will see their machines run faster and hence active cooling may crank up (e.g. fans) but I think the speed improvement outweighs the noise factor. + Note that these changes are already in thermald 2.1 that is now in + Ubuntu Groovy 20.10. + --- ** Changed in: thermald (Ubuntu) Status:
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
@Srinivas, commit f7db434293387c965e8d9141608f855893740e3a does not apply cleanly, I guess there are some RAPL related patches that are prerequisites. Do you mind assisting on a backport here as I don't want to miss out the important commits that are also required. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: In Progress Bug description: As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
Ubuntu 20.10 Groovy will have the latest 2.1 thermald hopefully in the next few hours. I'll backport the fixes and SRU this for focal. ** Changed in: thermald (Ubuntu) Status: Incomplete => In Progress ** Changed in: thermald (Ubuntu) Importance: Undecided => Medium ** Changed in: thermald (Ubuntu) Importance: Medium => High ** Changed in: thermald (Ubuntu) Assignee: (unassigned) => Colin Ian King (colin-king) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: In Progress Bug description: As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
Same issue for me on Dell XPS 9300. CPU is i7-1065G7. Using 20.04 LTS + Kernel 5.6.11 and thermald 1.9.1-1build1. root@laptop:/home/root# grep -r . /sys/bus/pci/devices/\:00\:04.0/power_limits/* /sys/bus/pci/devices/:00:04.0/power_limits/power_limit_0_max_uw:900 /sys/bus/pci/devices/:00:04.0/power_limits/power_limit_0_min_uw:250 /sys/bus/pci/devices/:00:04.0/power_limits/power_limit_0_step_uw:10 /sys/bus/pci/devices/:00:04.0/power_limits/power_limit_0_tmax_us:2800 /sys/bus/pci/devices/:00:04.0/power_limits/power_limit_0_tmin_us:2400 /sys/bus/pci/devices/:00:04.0/power_limits/power_limit_1_max_uw:1500 /sys/bus/pci/devices/:00:04.0/power_limits/power_limit_1_min_uw:600 /sys/bus/pci/devices/:00:04.0/power_limits/power_limit_1_step_uw:10 /sys/bus/pci/devices/:00:04.0/power_limits/power_limit_1_tmax_us:2800 /sys/bus/pci/devices/:00:04.0/power_limits/power_limit_1_tmin_us:2400 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Incomplete Bug description: As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
** Package changed: linux (Ubuntu) => thermald (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to thermald in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in thermald package in Ubuntu: Incomplete Bug description: As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
Anything more is required this to be applied? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in linux package in Ubuntu: Incomplete Bug description: As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
Please change this to "Confirmed". As you can see the power limits, it will limit performance from what you can get at 15W. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in linux package in Ubuntu: Incomplete Bug description: As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
Power limits from this platform: abuser@labuser-XPS-13-7390-2-in-1:/$ grep -r . sys/bus/pci/devices/\:00\:04.0/power_limits/* sys/bus/pci/devices/:00:04.0/power_limits/power_limit_0_max_uw:900 sys/bus/pci/devices/:00:04.0/power_limits/power_limit_0_min_uw:250 sys/bus/pci/devices/:00:04.0/power_limits/power_limit_0_step_uw:10 sys/bus/pci/devices/:00:04.0/power_limits/power_limit_0_tmax_us:2800 sys/bus/pci/devices/:00:04.0/power_limits/power_limit_0_tmin_us:2400 sys/bus/pci/devices/:00:04.0/power_limits/power_limit_1_max_uw:1500 sys/bus/pci/devices/:00:04.0/power_limits/power_limit_1_min_uw:600 sys/bus/pci/devices/:00:04.0/power_limits/power_limit_1_step_uw:10 sys/bus/pci/devices/:00:04.0/power_limits/power_limit_1_tmax_us:2800 sys/bus/pci/devices/:00:04.0/power_limits/power_limit_1_tmin_us:2400 You can see 900 as max power limit 0. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in linux package in Ubuntu: Incomplete Bug description: As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
I am not sure what is the thinkpad issue. Is it something new or old which should have been fixed with dptfxtract and thermald? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in linux package in Ubuntu: Incomplete Bug description: As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
Does 2.1 addresses, in the mean time, the performance bug affecting Thinkpads ? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in linux package in Ubuntu: Incomplete Bug description: As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1874933] Re: Performance workaround for Dell 7390 2-in-1 Ice Lake
** Description changed: As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. - The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (vi PPCC). + The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). - This system default max RAPL long term power limit is 15W. But this + This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 - I know 20.04 LTS uses 1.9.1. I can assist in backport if required. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1874933 Title: Performance workaround for Dell 7390 2-in-1 Ice Lake Status in linux package in Ubuntu: Incomplete Bug description: As reported here: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/1174225-dell-xps-7390-intel-ice-lake-performance-hit-hard-by-a-linux-kernel-regression?view=stream This primarily impacts "Ubuntu 20.04 LTS (Focal Fossa)." as it switched to 5.4 kernel. The 5.4 kernel added support for "Processor thermal device", for Ice Lake, which will expose the power tables (via PPCC). This system default "max RAPL long term power limit" is 15W. But this power table is specifying as 9W. So thermald will limit power to 9W. If dptfxtract is executed, then power limit will be higher than power up value, but most of the users will use out of the box setup. So this need a workaround. This workaround will ignore any power limit less than the power up power limit. This is addressed in thermald 2.1 with two commits: https://github.com/intel/thermal_daemon/commit/f7db434293387c965e8d9141608f855893740e3a https://github.com/intel/thermal_daemon/commit/c3461690eafb7304bf59a39fb02955a5154b3861 I know 20.04 LTS uses 1.9.1. I can assist in backport if required. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
