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Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24

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From: Ingo Molnar <mingo@...>
To: Rafael J. Wysocki <rjw@...>
Cc: Adrian Bunk <bunk@...>, Thomas Gleixner <tglx@...>, Peter Zijlstra <peterz@...>, LKML <linux-kernel@...>, Andrew Morton <akpm@...>, Linus Torvalds <torvalds@...>, Natalie Protasevich <protasnb@...>
Subject: Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24
Date: Friday, March 28, 2008 - 4:42 pm

> Subject		: 2.6.24-git15 Keyboard Issue?

Rafael, we can close this bug i think. The group scheduler related 
interactivity problems in early .25-rc were resolved via:

| commit 62fb185130e4d420f71a30ff59d8b16b74ef5d2b
| Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
| Date:   Mon Feb 25 17:34:02 2008 +0100
|
|     sched: revert load_balance_monitor() changes
[...]
|    Namely:
|     - very frequent wakeups on SMP, reported by PowerTop users.
|     - cacheline trashing on (large) SMP
|     - some latencies larger than 500ms

that includes Xorg's fragility to certain types of delays. It should be 
resolved by now and i havent seen it resurface.

we are now back to the 2.6.24 state of things. Which isnt as perfectly 
interactive as the non-group-scheduler 2.6.24, but which is still more 
interactive than say 2.6.22.

Peter is working on improving it even more, but that's 2.6.26 material.

	Ingo
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Messages in current thread:
2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Thu Mar 27, 6:53 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Mark Lord, (Fri Mar 28, 2:57 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 6:37 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Thomas Gleixner, (Fri Mar 28, 6:24 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 12:12 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Thomas Gleixner, (Fri Mar 28, 12:18 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Thomas Gleixner, (Fri Mar 28, 6:58 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Peter Zijlstra, (Fri Mar 28, 7:00 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Adrian Bunk, (Fri Mar 28, 7:13 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Peter Zijlstra, (Fri Mar 28, 7:44 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Thomas Gleixner, (Fri Mar 28, 7:16 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Adrian Bunk, (Fri Mar 28, 7:31 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 12:17 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Ingo Molnar, (Fri Mar 28, 4:42 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 6:33 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Adrian Bunk, (Fri Mar 28, 1:06 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Thu Mar 27, 10:30 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 12:10 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 12:47 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 6:28 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Ingo Molnar, (Mon Mar 31, 9:34 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Adrian Bunk, (Fri Mar 28, 1:36 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Ingo Molnar, (Fri Mar 28, 4:33 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Haavard Skinnemoen, (Fri Mar 28, 7:29 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 12:11 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Yinghai Lu, (Thu Mar 27, 11:31 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Kamalesh Babulal, (Mon Mar 31, 6:14 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Mon Mar 31, 8:10 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Thu Mar 27, 11:24 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 12:00 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Fri Mar 28, 2:33 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 3:25 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Sat Mar 29, 4:42 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Sat Mar 29, 5:29 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Mon Mar 31, 2:45 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Pekka Enberg, (Sat Mar 29, 7:52 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Mon Mar 31, 2:56 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Pekka Enberg, (Fri Mar 28, 1:15 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 1:27 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Fri Mar 28, 2:37 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 3:32 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Pekka Enberg, (Fri Mar 28, 2:08 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 2:20 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Pekka Enberg, (Fri Mar 28, 3:59 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 4:24 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Andrew Morton, (Fri Mar 28, 2:47 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 3:37 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 3:59 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Fri Mar 28, 2:53 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Fri Mar 28, 2:38 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Paweł Staszewski, (Fri Mar 28, 6:48 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Andrew Morton, (Fri Mar 28, 1:46 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 5:57 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Carlos R. Mafra, (Thu Mar 27, 8:18 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Thu Mar 27, 8:23 pm)