I no longer have access to this hardware to get the full computer model,
but the referenced test programs should be able to reproduce the issue
on most, if not all machines (it's worked on everyone I've tried it on
to date).
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I no longer have access to this hardware to get the full computer model,
but the referenced test programs should be able to reproduce the issue
on most, if not all machines (it's worked on everyone I've tried it on
to date).
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Public bug reported:
I right clicked on the program at the bottom of the sidebar and the
context menu displayed in a very odd manner. It wouldn't let me take a
screenshot, so I just took a picture of it and attached it.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity
As another data point, I loaded the Ubuntu 8.04-4 x86 LiveCD and rebuilt
the executable and ran the test. I then ran the same executable on the
Ubuntu 7.10 x86 LiveCD and the Ubuntu 12.04 x64 Install (after
installing ia32-libs) and here are the results. I chose those release
because those were
I installed the kernel with the BFS scheduler from
https://launchpad.net/~chogydan/+archive/ppa and ran the test. It
appears that the the two schedulers count user/system time differently,
but over all it appears that BFS is slightly better than CFS in this
test, but doesn't show any significant
I installed the kernel with the BFS scheduler and other CK modifications
from https://launchpad.net/~chogydan/+archive/ppa and ran the test.
The performance at the low number of threads shows the same gap, but
once the thread count hits the number of cores, the gap basically closes
completely, so
** Attachment added: Wall Time for BFS kernel
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1058854/+attachment/3371313/+files/ubuntu_12.04_bfs_gettimeofday.svg
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** Attachment added: Wall Time for BFS kernel when running schedtool
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1058854/+attachment/3371315/+files/ubuntu_12.04_bfs_schedtool_gettimeofday.svg
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** Attachment added: User time for BFS kernel
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1058854/+attachment/3371314/+files/ubuntu_12.04_bfs_usertime.svg
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** Attachment added: User time for BFS kernel when running schedtool
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1058854/+attachment/3371316/+files/ubuntu_12.04_bfs_schedtool_usertime.svg
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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I'm running 12.04 so I gave the 3.4 kernel a try (
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4-precise/ ). It
appears that the performance is about the same, if not worse, with 3.4.
Here are the results:
mutex
1 thread real 0m 0.515s user 0m 0.508s sys 0m 0.004s
2 threads real 0m 4.305s
I also ran it with the 3.6 kernel ( http://kernel.ubuntu.com/~kernel-
ppa/mainline/v3.6-quantal/ ) and just like with 3.4, the performance is
about the same, if not worse.
Here are the results:
mutex
1 thread real 0m 0.545s user 0m 0.520s sys 0m 0.000s
2 threads real 0m 3.550s user 0m 3.636s
I ran it with the 3.6 kernel and it gave basically identical results. I
didn't attach the plots because they didn't show anything meaningful or
new, but I can if you would like.
** Tags removed: needs-upstream-testing
** Tags added: kernel-bug-exists-upstream
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Public bug reported:
It appears that there is an issue with the Completely Fair Scheduler (CFS) not
intereacting well with sleep commands. I have written up a test program to help
demonstrate the issue and it can be found at:
www.github.com/daveisfera/test_sleep/
The test outputs wall time (CPU
** Attachment added: Plot of wall time
https://bugs.launchpad.net/bugs/1058854/+attachment/3356798/+files/ubuntu_12.04_gettimeofday.svg
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** Attachment added: Plot of user time
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1058854/+attachment/3356821/+files/ubuntu_12.04_usertime.svg
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** Attachment added: Plot of wall time when running schedtool
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1058854/+attachment/3356822/+files/ubuntu_12.04_schedtool_gettimeofday.svg
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** Attachment added: Plot of user time when running schedtool
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1058854/+attachment/3356823/+files/ubuntu_12.04_schedtool_usertime.svg
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Public bug reported:
I noticed the results of this blog post:
http://mr-edd.co.uk/blog/sad_state_of_osx_pthread_mutex_t
and I was curious if the same sort of issue existed with the linux kernel and
if it would shed any light on Bug #1058854
apport information
** Tags added: apport-collected precise running-unity staging
** Description changed:
I noticed the results of this blog post:
http://mr-edd.co.uk/blog/sad_state_of_osx_pthread_mutex_t
and I was curious if the same sort of issue existed with the linux kernel and
if it
apport information
** Attachment added: AlsaDevices.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356928/+files/AlsaDevices.txt
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apport information
** Attachment added: AplayDevices.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356929/+files/AplayDevices.txt
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apport information
** Attachment added: BootDmesg.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356930/+files/BootDmesg.txt
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apport information
** Attachment added: CRDA.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356931/+files/CRDA.txt
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Title:
Poor
apport information
** Attachment added: Card0.Amixer.values.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356932/+files/Card0.Amixer.values.txt
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apport information
** Attachment added: Card0.Codecs.codec.0.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356934/+files/Card0.Codecs.codec.0.txt
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apport information
** Attachment added: Card0.Codecs.codec.3.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356935/+files/Card0.Codecs.codec.3.txt
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apport information
** Attachment added: CurrentDmesg.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356936/+files/CurrentDmesg.txt
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apport information
** Attachment added: IwConfig.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356937/+files/IwConfig.txt
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Title:
apport information
** Attachment added: Lspci.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356946/+files/Lspci.txt
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Title:
Poor
apport information
** Attachment added: Lsusb.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356947/+files/Lsusb.txt
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Title:
Poor
apport information
** Attachment added: PciMultimedia.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356948/+files/PciMultimedia.txt
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apport information
** Attachment added: ProcCpuinfo.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356949/+files/ProcCpuinfo.txt
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apport information
** Attachment added: ProcInterrupts.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356950/+files/ProcInterrupts.txt
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apport information
** Attachment added: ProcModules.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356951/+files/ProcModules.txt
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apport information
** Attachment added: RfKill.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356953/+files/RfKill.txt
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Title:
apport information
** Attachment added: PulseList.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356952/+files/PulseList.txt
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apport information
** Attachment added: UdevDb.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356954/+files/UdevDb.txt
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Title:
apport information
** Attachment added: UdevLog.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356955/+files/UdevLog.txt
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Title:
apport information
** Attachment added: WifiSyslog.txt
https://bugs.launchpad.net/bugs/1058864/+attachment/3356956/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Yes, a reboot fixes the issue. I'll grab a screenshoot next time it
happens.
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https://bugs.launchpad.net/bugs/1014462
Title:
Sidebar showing up as thinner and all gray
To manage
Public bug reported:
I just logged in and my sidebar is showing up as thinner and all gray
with no icons to see which applications are running and launch new ones.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity 4.28.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
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Title:
Sidebar showing up as thinner and all gray
To manage notifications about this bug go to:
Public bug reported:
Just trying to install the Google Plugin and it crashed.
** Affects: openjdk-6 (Ubuntu)
Importance: Undecided
Status: New
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** Attachment added: hs_err_pid10379.log
https://bugs.launchpad.net/bugs/1003763/+attachment/3160449/+files/hs_err_pid10379.log
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Title:
Public bug reported:
The Google Plugin for Eclipse doesn't work under Ubuntu 12.04. Any issue
has been opened under Google Web Toolkit ( http://code.google.com/p
/google-web-toolkit/issues/detail?id=7232 ), but I think it would be
worth considering a fix from Ubuntu's side of things since it
I did the disk check before doing the install and it passed. I just ran
the md5sum check on the CD again and it passed, so I think that the CD
is fine.
** Changed in: ubuntu
Status: Invalid = New
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Public bug reported:
I install 12.04 using the Desktop x86 LiveCD and the USB Kingston mouse
didn't work during the entire install process but worked fine once I
booted the system.
** Affects: ubiquity (Ubuntu)
Importance: Undecided
Status: New
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** Attachment added: syslog from install on Dell Vostro 200 with USB Kingston
mouse
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/993756/+attachment/3126947/+files/syslog
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** Attachment added: partman from install on Dell Vostro 200 with USB Kingston
mouse
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/993756/+attachment/3126948/+files/partman
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** Changed in: linux (Ubuntu)
Status: Incomplete = Fix Released
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https://bugs.launchpad.net/bugs/794846
Title:
Very slow boot of Ubuntu 11.04
To manage notifications about this
The slow boot issue has been resolved (see
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/794846 ).
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https://bugs.launchpad.net/bugs/779066
Title:
Grub not accepting change and
I just updated and the issue appears to be resolved. I'm attaching the
new png from bootchart just in case it's useful to anyone.
** Attachment added: bootchart after update on July 13, 2011 which appears to
have fixed the problem
** Attachment added: JohansenLaptop-natty-20110611-1.png
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/794846/+attachment/2165337/+files/JohansenLaptop-natty-20110611-1.png
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Public bug reported:
My laptop boot pretty quickly with 10.10 and then I upgrade to 11.04 and
it booted very slowly (around 1-2 minutes). I then tried a clean install
to see if it would resolve the issue, but it still booted very slowly.
** Affects: linux (Ubuntu)
Importance: Undecided
** Attachment added: dmesg output after boot
https://bugs.launchpad.net/bugs/794846/+attachment/2161562/+files/dmesg.txt
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Title:
Very slow
Public bug reported:
Binary package hint: update-manager
I've changed the default in grub to Windows several times, but it still
boots into Ubuntu.
Also, the boot takes a VERY long time and prints an error about
/dev/sdb5 not being available.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
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Title:
Grub not accepting change and /dev/sdb5 taking forever to boot after
upgrade to 11.04
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** Attachment added: apt-clone_system_state.tar.gz
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/779066/+attachment/2118420/+files/apt-clone_system_state.tar.gz
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** Attachment added: apt.log
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/779066/+attachment/2118419/+files/apt.log
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Title:
** Attachment added: history.log
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/779066/+attachment/2118421/+files/history.log
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** Attachment added: lspci.txt
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/779066/+attachment/2118422/+files/lspci.txt
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** Attachment added: main.log
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/779066/+attachment/2118423/+files/main.log
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Title:
** Attachment added: term.log
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/779066/+attachment/2118424/+files/term.log
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Title:
** Attachment added: xorg_fixup.log
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/779066/+attachment/2118432/+files/xorg_fixup.log
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** Attachment added: apt-term.log
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/779066/+attachment/2118435/+files/apt-term.log
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Upgrading the ALSA drivers (
https://wiki.ubuntu.com/Audio/InstallingLinuxAlsaDriverModules ) fixed
the issue for me.
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[Realtek ID 270] ALSA test tone not correctly played back
https://bugs.launchpad.net/bugs/635255
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