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Re: [accounting regression since rc1] scheduler updates

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From: Andi Kleen
Subject: Re: [accounting regression since rc1] scheduler updates
Date: Tuesday, August 21, 2007 - 4:15 am

> i know there are some incredibly broken (but rare) boxes where the bios 

There are first a couple of older and not so old (Centaur) chips that 
generally stop the TSC in C1.

And also some boxes who shouldn't have anything deeper than C2 have
trouble with the TSC. For example I got a Opteron machine (which
definitely shouldn't have any C2 since it's two socket) where the
TSC appears to stop or at least slow down a lot in C1.

And thirdly it's just unclean to add all kinds of custom hooks
there. It was already ugly in NOHZ, please don't continue that.

-Andi
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Messages in current thread:
[git pull request] scheduler updates, Ingo Molnar, (Sun Aug 12, 9:32 am)
Re: [accounting regression since rc1] scheduler updates, Christian Borntraeger, (Tue Aug 14, 1:37 am)
[PATCH][RFC] Re: accounting regression since rc1, Christian Borntraeger, (Thu Aug 16, 1:17 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Mon Aug 20, 8:45 am)
Re: [accounting regression since rc1] scheduler updates, Martin Schwidefsky, (Mon Aug 20, 10:03 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Mon Aug 20, 11:08 am)
Re: [accounting regression since rc1] scheduler updates, Martin Schwidefsky, (Mon Aug 20, 11:33 am)
Re: [accounting regression since rc1] scheduler updates, Balbir Singh, (Mon Aug 20, 12:00 pm)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Mon Aug 20, 12:05 pm)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Mon Aug 20, 12:12 pm)
Re: [accounting regression since rc1] scheduler updates, Paul Mackerras, (Mon Aug 20, 4:07 pm)
Re: [accounting regression since rc1] scheduler updates, Andi Kleen, (Mon Aug 20, 7:18 pm)
Re: [accounting regression since rc1] scheduler updates, Christian Borntraeger, (Tue Aug 21, 12:00 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Tue Aug 21, 12:09 am)
Re: [accounting regression since rc1] scheduler updates, Christian Borntraeger, (Tue Aug 21, 12:20 am)
Re: [accounting regression since rc1] scheduler updates, Christian Borntraeger, (Tue Aug 21, 1:17 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Tue Aug 21, 1:42 am)
Re: [accounting regression since rc1] scheduler updates, Martin Schwidefsky, (Tue Aug 21, 2:11 am)
Re: [accounting regression since rc1] scheduler updates, Martin Schwidefsky, (Tue Aug 21, 2:18 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Tue Aug 21, 2:34 am)
Re: [accounting regression since rc1] scheduler updates, Paul Mackerras, (Tue Aug 21, 2:48 am)
Re: [accounting regression since rc1] scheduler updates, Andi Kleen, (Tue Aug 21, 3:07 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Tue Aug 21, 3:20 am)
Re: [accounting regression since rc1] scheduler updates, Martin Schwidefsky, (Tue Aug 21, 3:38 am)
Re: [accounting regression since rc1] scheduler updates, Christian Borntraeger, (Tue Aug 21, 3:39 am)
Re: [accounting regression since rc1] scheduler updates, Christian Borntraeger, (Tue Aug 21, 3:43 am)
Re: [accounting regression since rc1] scheduler updates, Andi Kleen, (Tue Aug 21, 4:15 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Tue Aug 21, 4:15 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Tue Aug 21, 4:20 am)
Re: [accounting regression since rc1] scheduler updates, Christian Borntraeger, (Tue Aug 21, 4:24 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Tue Aug 21, 4:25 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Tue Aug 21, 4:30 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Tue Aug 21, 4:36 am)
Re: [accounting regression since rc1] scheduler updates, Martin Schwidefsky, (Tue Aug 21, 4:58 am)
Re: [accounting regression since rc1] scheduler updates, Christian Borntraeger, (Tue Aug 21, 4:58 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Tue Aug 21, 5:21 am)
Re: [accounting regression since rc1] scheduler updates, Martin Schwidefsky, (Tue Aug 21, 5:57 am)
Re: [accounting regression since rc1] scheduler updates, Christian Borntraeger, (Wed Aug 22, 12:50 am)
Re: [accounting regression since rc1] scheduler updates, Ingo Molnar, (Wed Aug 22, 12:59 am)