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Re: [PATCH 1/2] tracing/function-return-tracer: Make the function return tracer lockless

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From: Andi Kleen
Subject: Re: [PATCH 1/2] tracing/function-return-tracer: Make the function return tracer lockless
Date: Thursday, November 13, 2008 - 10:34 am

> So the answer to this is:

That was my first thought when I wrote the original email,
but the disadvantage is that barrier() is a big hammer
that flushes everything and can make the code much worse.
That is why I suggested local_add_return() instead.

-Andi

-- 
ak@linux.intel.com
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Messages in current thread:
[PATCH 1/2] tracing/function-return-tracer: Make the funct ..., Frederic Weisbecker, (Wed Nov 12, 2:47 pm)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Ingo Molnar, (Wed Nov 12, 3:15 pm)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Frédéric Weisbecker, (Thu Nov 13, 1:50 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Ingo Molnar, (Thu Nov 13, 1:55 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Frédéric Weisbecker, (Thu Nov 13, 2:16 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Ingo Molnar, (Thu Nov 13, 2:23 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Frédéric Weisbecker, (Thu Nov 13, 2:27 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Ingo Molnar, (Thu Nov 13, 2:40 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Frédéric Weisbecker, (Thu Nov 13, 5:36 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Ingo Molnar, (Thu Nov 13, 5:54 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Peter Zijlstra, (Thu Nov 13, 5:59 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Ingo Molnar, (Thu Nov 13, 6:02 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Andi Kleen, (Thu Nov 13, 7:53 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Frédéric Weisbecker, (Thu Nov 13, 10:01 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Andi Kleen, (Thu Nov 13, 10:12 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Steven Rostedt, (Thu Nov 13, 10:21 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Frédéric Weisbecker, (Thu Nov 13, 10:26 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Steven Rostedt, (Thu Nov 13, 10:32 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Andi Kleen, (Thu Nov 13, 10:34 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Frédéric Weisbecker, (Thu Nov 13, 10:46 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Andi Kleen, (Thu Nov 13, 11:29 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Steven Rostedt, (Thu Nov 13, 11:35 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Andi Kleen, (Thu Nov 13, 11:55 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Ingo Molnar, (Thu Nov 13, 11:57 am)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Steven Rostedt, (Thu Nov 13, 12:03 pm)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Andi Kleen, (Thu Nov 13, 12:19 pm)
Re: [PATCH 1/2] tracing/function-return-tracer: Make the f ..., Frédéric Weisbecker, (Thu Nov 13, 1:06 pm)