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Re: [RFC PATCHSET] sched,perf: unify tracers in sched and move perf on top of TP

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From: Tejun Heo
Subject: Re: [RFC PATCHSET] sched,perf: unify tracers in sched and move perf on top of TP
Date: Thursday, May 6, 2010 - 12:33 am

On 05/06/2010 09:29 AM, Tejun Heo wrote:

Oh, also, if static text optimization is applied to perf calls
directly, it would require about the same complexity overhead as doing
it on top of TPs.  It would still have to drain contexts before
turning off those hooks, so the only advantage is the ability to build
the kernel w/ PERF but w/o TPs.

Thanks.

-- 
tejun
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Messages in current thread:
[RFC PATCHSET] sched,perf: unify tracers in sched and move ..., Tejun Heo, (Tue May 4, 5:38 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Peter Zijlstra, (Tue May 4, 10:29 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Tejun Heo, (Tue May 4, 10:00 pm)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Peter Zijlstra, (Wed May 5, 2:06 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Tejun Heo, (Wed May 5, 2:32 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Peter Zijlstra, (Wed May 5, 2:51 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Tejun Heo, (Wed May 5, 2:54 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Peter Zijlstra, (Wed May 5, 4:38 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Tejun Heo, (Wed May 5, 5:28 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Avi Kivity, (Wed May 5, 5:33 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Tejun Heo, (Wed May 5, 6:09 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Ingo Molnar, (Wed May 5, 9:55 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Peter Zijlstra, (Wed May 5, 11:12 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Peter Zijlstra, (Wed May 5, 11:16 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Frederic Weisbecker, (Wed May 5, 11:30 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Ingo Molnar, (Wed May 5, 11:28 pm)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Ingo Molnar, (Wed May 5, 11:31 pm)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Peter Zijlstra, (Thu May 6, 12:04 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Tejun Heo, (Thu May 6, 12:11 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Ingo Molnar, (Thu May 6, 12:11 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Tejun Heo, (Thu May 6, 12:29 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Tejun Heo, (Thu May 6, 12:33 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Avi Kivity, (Thu May 6, 1:18 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Ingo Molnar, (Thu May 6, 1:27 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Tejun Heo, (Thu May 6, 1:41 am)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Paul Mackerras, (Sun May 9, 10:20 pm)
Re: [RFC PATCHSET] sched,perf: unify tracers in sched and ..., Tejun Heo, (Sun May 9, 10:48 pm)