... 2007 6:17 PM Subject: Re: [announce] CFS-devel, performance improvements To: Ingo Molnar < ... it also demonstrated a number of improvements. > The combo patch against 2.6. ... the already existing > sum_exec_runtime metric in CFS), it's in essence the sum ...

linux-kernel - debian developer - Sep 13 2007 - 03:17

... and me are pleased to > announce the latest iteration of the ... There are lots of small performance improvements in form of a ... v2.6.23-rc6-CFS-devel > ---------------------------------------------------- > 0.70 0.75 0 ...

linux-kernel - Roman Zippel - Sep 12 2007 - 18:17

... patch already with my first CFS review, but at that time ... There are lots of small performance improvements in form of a ... v2.6.23-rc6-CFS-devel > > ---------------------------------------------------- > > 0.70 0.75 0 ...

linux-kernel - debian developer - Sep 13 2007 - 03:34

... and me are pleased to > > announce the latest iteration of the ... has been on simplifications and performance - and as part of > > that ... about CFS's complexity > that finally lead to the improvements in ... mingo/linux-2.6-sched-devel.git > > Am I the only ...

linux-kernel - Willy Tarreau - Sep 13 2007 - 19:08

... are pleased > | to announce the latest iteration of the CFS scheduler development ... focus has been on simplifications and performance - > | and as part of that we ... virtual time aspect, in the announcement you're less clear that it's all based on the ...

linux-kernel - Roman Zippel - Sep 13 2007 - 12:50

... pleased | to announce the latest iteration of the CFS scheduler development ... has been on simplifications and performance - | and as part of that ... a simpler variant of this patch. -------------------> Subject: sched: track cfs_rq->curr on ...

linux-kernel - Ingo Molnar - Sep 13 2007 - 10:28

... 4.65 hackbench 50 # rc1 rc6 cfs-devel 1 6.634 5.969 ... 5.933 pipe-test # rc1 rc6 cfs-devel 1 13.39 13.16 ... 2.37 hackbench 50 # rc1 rc6 cfs-devel 1 7.528 7.950 ... story). Overall though, a definite improvement over 2.6.23-rc1.

linux-kernel - Rob Hussey - Sep 13 2007 - 21:47

... of bad scheduling decisions. > In the announcement of your "Really Fair Scheduler" ... , You're forgetting that only a few days before that announcement, ... complexity of CFS (of which a lot has been removed now in CFS-devel) it was rather difficult to ...

linux-kernel - Roman Zippel - Sep 14 2007 - 07:46

... .23-rc1, 2.6.23-rc6-cfs, and 2.6.23-rc6-cfs- ... pipe-test (http://redhat.com/~mingo/cfs-scheduler/tools/pipe-test.c): ... I'll attach them, but they're also at: http://www.healthcarelinen. ... the 2.6.23-rc6-cfs and 2.6.23-rc6-cfs-devel lat_ctx numbers are nearly ...

linux-kernel - Rob Hussey - Sep 13 2007 - 04:42

... PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ ... for both -rc6 and -rc6-cfs-devel) So even in this ... /9/2/38 In the announcement of your "Really Fair Scheduler" ... actual real-world proof of CFS misbehavior, you said: "[...] they have ...

linux-kernel - Ingo Molnar - Sep 13 2007 - 08:47

... useful commentary and suggestions. > In this announcement you make relatively few references how ... I get the impression that Ingo re-implemented some ideas that you had ... claimed to understand every detail of CFS, I can _guess_ > what _might_ have ...

linux-kernel - Kyle Moffett - Sep 13 2007 - 14:28

... the same things work in CFS - but nothing. > Then you had ... the feedback from you and improved the schduler based on this ... my impression after reading the announcement with respect to your influence ... re-read it. So do not answering by quoting the announcement ...

linux-kernel - Sam Ravnborg - Sep 13 2007 - 15:01

... , Peter Zijlstra and me are pleased to > announce the latest iteration of the CFS scheduler development tree. Our > main focus has been on simplifications and performance - and as part of > that we've also picked up some ...

linux-kernel - Mike Galbraith - Sep 12 2007 - 02:20

... got some time, could you perhaps re-measure with these > > > disabled: > > > > > > CONFIG_SCHED_DEBUG=y ... to see if they help. > Current cfs-devel git compiles fine without ... for 2.6.23-rc6-cfs and 2.6.23-rc6-cfs-devel. - To unsubscribe from this ...

linux-kernel - Rob Hussey - Sep 13 2007 - 06:17

... You can pick it up from here: >> >> http://people.redhat.com/mingo/cfs-scheduler/devel/sched-cfs- >> v2.6.23-rc6-v21-combo-3.patch > > I managed to work ... email), it sure looks a lot like CFS is doing at *least* as well as ...

linux-kernel - Kyle Moffett - Sep 14 2007 - 02:59

... linux-m68k.org> wrote: > > The sched-devel.git tree can be pulled from ... /mingo/linux-2.6-sched-devel.git > > Am I the only ... have messed up my sched-devel.git script so the git- ... ://people.redhat.com/mingo/cfs-scheduler/devel/patches.tar.gz > [...] It ...

linux-kernel - Ingo Molnar - Sep 13 2007 - 05:19

... got some time, could you perhaps re-measure with these disabled: CONFIG_SCHED_DEBUG=y ... these options mask some of the performance enhancements we made. There's also ... http://people.redhat.com/mingo/cfs-scheduler/devel/ with some fixes for SMP ...

linux-kernel - Ingo Molnar - Sep 13 2007 - 05:31

... in consideration the feedback > from you and improved the schduler based on this. > ... were my impression after reading the announcement with > respect to your influence and ... thing you remember here from the announcements is the cleanup and tuning part, ...

linux-kernel - Roman Zippel - Sep 14 2007 - 08:26

... feels great. I did > some benchmarks for 2.6.23-rc1, 2.6.23-rc6-cfs, and > 2.6.23-rc6-cfs-devel: thanks for the numbers! Could you please also post the .config you used? Thx, Ingo - To unsubscribe from this ...

linux-kernel - Ingo Molnar - Sep 13 2007 - 05:06

... (with the combo-3.patch?) You can pick it up from here: http://people.redhat.com/mingo/cfs-scheduler/devel/sched-cfs-v2.6.23-rc6-v21-combo-3.patch I tried your config and it builds fine here. Ingo ...

linux-kernel - Ingo Molnar - Sep 13 2007 - 07:48