** Description changed: - if jackd and jackdbus run, jackd and/or jackdbus produce high cpu load. - jackd tends to take all availabl CPU power bringing the system to slow - down remarkably. Killing jackd and jackdbus frees cpu and system load - drops from 100%/per CPU down to ~4% overall. + [Impact] + + * Users have reported issues with high CPU load when running jackd and + jackdbus, causing system slowdowns + + * This newer version was backported into the Ubuntu Studio Backports PPA + and has shown to have success in fixing this issue. + + [Test Case] + + * Attempt to run jackd and jackdbus, jackd tends to take 100% per CPU + + * Killing jackd and jackdbus reduces CPU down to nominal levels + + * Version in Ubuntu Studio Backports PPA does not have this issue, same + version exists in Ubuntu Groovy Gorilla. + + [Regression Potential] + + * Since jackd is used by multiple professional audio applications and + therefore there could be potential negative impact on those + applicaitons. + + * Although that regression potential exists, multiple users have + reported great success when using the newer version. + + [Other Info] + + * Although not a "bug" per se, upstream developer lamented the fact that the version in 20.04 is so far behind. + + * Most audio applications and plugins in Ubuntu 20.04 have been + developed with this version of Jackd in mind. + + ---- + Original bug report: + + + if jackd and jackdbus run, jackd and/or jackdbus produce high cpu load. jackd tends to take all availabl CPU power bringing the system to slow down remarkably. Killing jackd and jackdbus frees cpu and system load drops from 100%/per CPU down to ~4% overall. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: pulseaudio-module-jack 1:13.99.1-1ubuntu3.3 ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41 Uname: Linux 5.4.0-37-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.3 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: sct-muc 1800 F.... pulseaudio - /dev/snd/pcmC0D0c: sct-muc 1800 F...m pulseaudio - /dev/snd/pcmC0D0p: sct-muc 1800 F...m pulseaudio - /dev/snd/timer: sct-muc 1800 f.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC0: sct-muc 1800 F.... pulseaudio + /dev/snd/pcmC0D0c: sct-muc 1800 F...m pulseaudio + /dev/snd/pcmC0D0p: sct-muc 1800 F...m pulseaudio + /dev/snd/timer: sct-muc 1800 f.... pulseaudio CasperMD5CheckResult: skip Date: Thu Jun 18 18:08:25 2020 InstallationDate: Installed on 2019-09-09 (282 days ago) InstallationMedia: Xubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) ProcEnviron: - LANGUAGE=de_DE - TERM=screen - PATH=(custom, no user) - LANG=de_DE.UTF-8 - SHELL=/bin/bash + LANGUAGE=de_DE + TERM=screen + PATH=(custom, no user) + LANG=de_DE.UTF-8 + SHELL=/bin/bash PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. SourcePackage: pulseaudio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/27/2020 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: 6.00 dmi.board.name: 440BX Desktop Reference Platform dmi.board.vendor: Intel Corporation dmi.board.version: None dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 1 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd02/27/2020:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A: dmi.product.name: VMware Virtual Platform dmi.product.version: None dmi.sys.vendor: VMware, Inc.
** Also affects: jackd2 (Ubuntu Groovy) Importance: High Status: Triaged ** Also affects: jackd2 (Ubuntu Focal) Importance: Undecided Status: New ** Changed in: jackd2 (Ubuntu Focal) Importance: Undecided => High ** Changed in: jackd2 (Ubuntu Focal) Status: New => In Progress ** Changed in: jackd2 (Ubuntu Groovy) Status: Triaged => Fix Released ** Changed in: jackd2 (Ubuntu Focal) Assignee: (unassigned) => Erich Eickmeyer (eeickmeyer) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1884101 Title: jackdbus produces high cpu load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/jackd2/+bug/1884101/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs