[Bug 1058854] Re: High CPU usage of CFS

2014-01-02 Thread Dave Johansen
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). -- You received this bug notification because you are a member of

[Bug 1058854] Re: High CPU usage of CFS

2014-01-02 Thread Christopher M. Penalver
** Changed in: linux (Ubuntu) Importance: Medium = Low ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1058854 Title: High CPU

[Bug 1058854] Re: High CPU usage of CFS

2014-01-01 Thread Christopher M. Penalver
Dave Johansen, could you please provide the full computer model as noted on the sticker (ex. HP Pavilion dm4-2015dx Entertainment Notebook PC)? ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete ** Tags added: needs-full-computer-model -- You received this bug notification

[Bug 1058854] Re: High CPU usage of CFS

2012-10-04 Thread Dave Johansen
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

[Bug 1058854] Re: High CPU usage of CFS

2012-10-04 Thread Dave Johansen
** 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1058854] Re: High CPU usage of CFS

2012-10-04 Thread Dave Johansen
** 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is

[Bug 1058854] Re: High CPU usage of CFS

2012-10-04 Thread Dave Johansen
** 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1058854] Re: High CPU usage of CFS

2012-10-04 Thread Dave Johansen
** 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 -- You received this bug

[Bug 1058854] Re: High CPU usage of CFS

2012-10-02 Thread Dave Johansen
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 -- You received this bug

[Bug 1058854] Re: High CPU usage of CFS

2012-10-01 Thread Joseph Salisbury
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.6 kernel[0] (Not a kernel in the daily directory) and install both the linux-image and linux-image-extra .deb packages. Once you've tested the

[Bug 1058854] Re: High CPU usage of CFS

2012-09-29 Thread Dave Johansen
** Attachment added: Plot of wall time https://bugs.launchpad.net/bugs/1058854/+attachment/3356798/+files/ubuntu_12.04_gettimeofday.svg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1058854

[Bug 1058854] Re: High CPU usage of CFS

2012-09-29 Thread Dave Johansen
** Attachment added: Plot of user time https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1058854/+attachment/3356821/+files/ubuntu_12.04_usertime.svg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1058854] Re: High CPU usage of CFS

2012-09-29 Thread Dave Johansen
** 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to

[Bug 1058854] Re: High CPU usage of CFS

2012-09-29 Thread Dave Johansen
** 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to

[Bug 1058854] Re: High CPU usage of CFS

2012-09-29 Thread Brad Figg
** Changed in: linux (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1058854 Title: High CPU usage of CFS To manage notifications about this bug go to: