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Date: Tue, 21 Aug 2007 13:15:44 +0200 From: Ingo Molnar <mingo@...e.hu> To: Christian Borntraeger <borntraeger@...ibm.com> Cc: Martin Schwidefsky <schwidefsky@...ibm.com>, Linus Torvalds <torvalds@...ux-foundation.org>, Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org, Jan Glauber <jang@...ux.vnet.ibm.com>, heiko.carstens@...ibm.com, Paul Mackerras <paulus@...ba.org> Subject: Re: [accounting regression since rc1] scheduler updates * Christian Borntraeger <borntraeger@...ibm.com> wrote: > Am Dienstag, 21. August 2007 schrieb Ingo Molnar: > > the 'invariant' i mentioned only covers scheduler behavior, not > > accounting behavior. Accounting is separate in theory, but coupled in > > practice now via sum_exec_runtime. > > Forgot to answer about that: That means that the current design does > not cover our requirement of showing process real time, even if we > implement sched_clock? In that case I would suggest to merge my patch > as a quick but correct solution and do it properly for 2.6.24. Of > course better solutions are welcome :-) you mean to revert b27f03d4bd? I'd really like to see this fixed for real for s390 + CONFIG_VIRT_CPU_ACCOUNTING=y. (which seems to be the only case affected) Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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