Re: [PATCH] scheduler: fix x86 regression in native_sched_clock

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To: Guillaume Chazarain <guichaz@...>
Cc: <stefano.brivio@...>, Nick Piggin <nickpiggin@...>, Robert Love <rml@...>, <linux-kernel@...>, Dave Jones <davej@...>, Rafael J. Wysocki <rjw@...>, Michael Buesch <mb@...>, Thomas Gleixner <tglx@...>, Andrew Morton <akpm@...>, Len Brown <lenb@...>
Date: Friday, December 7, 2007 - 1:57 pm

* Guillaume Chazarain <guichaz@yahoo.fr> wrote:


ok, great :-)


yeah - for CONFIG_LOCKSTAT - but that needs to be done even more 
carefully, due to rq->lock being lockdep-checked. We can perhaps try a 
lock-less cpu_clock() version - other CPUs are not supposed to update 
rq->clock.


thanks. I do get the impression that most of this can/should wait until 
2.6.25. The patches look quite dangerous.

	Ingo
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Messages in current thread:
Re: [PATCH] scheduler: fix x86 regression in native_sched_cl..., Guillaume Chazarain, (Fri Dec 7, 3:18 am)
Re: [PATCH] scheduler: fix x86 regression in native_sched_cl..., Guillaume Chazarain, (Fri Dec 7, 4:02 am)
Re: [patch] x86: scale cyc_2_nsec according to CPU frequency, Guillaume Chazarain, (Fri Dec 7, 10:27 am)
Re: [patch] x86: scale cyc_2_nsec according to CPU frequency, Arjan van de Ven, (Sat Dec 8, 11:57 am)
Re: [patch] x86: scale cyc_2_nsec according to CPU frequency, Arjan van de Ven, (Sat Dec 8, 4:18 pm)
Re: [PATCH] scheduler: fix x86 regression in native_sched_cl..., Guillaume Chazarain, (Fri Dec 7, 5:29 am)
Re: [PATCH] scheduler: fix x86 regression in native_sched_cl..., Guillaume Chazarain, (Fri Dec 7, 7:18 am)
Re: [PATCH] scheduler: fix x86 regression in native_sched_cl..., Guillaume Chazarain, (Fri Dec 7, 7:57 am)
Re: [PATCH] scheduler: fix x86 regression in native_sched_cl..., Guillaume Chazarain, (Fri Dec 7, 12:46 pm)
Re: [PATCH] scheduler: fix x86 regression in native_sched_cl..., Ingo Molnar, (Fri Dec 7, 1:57 pm)
Re: [PATCH] scheduler: fix x86 regression in native_sched_cl..., Guillaume Chazarain, (Sat Dec 8, 7:37 pm)