Messages in this thread | | | Date | Thu, 26 Feb 2009 18:57:58 +0100 | From | Ingo Molnar <> | Subject | Re: [tip:tracing/ftrace] tracing: implement trace_clock_*() APIs |
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* Frederic Weisbecker <fweisbec@gmail.com> wrote:
> I missed this one.
because i just posted it :)
> Wouldn't your previous idea of a cmpxchg global clock be > better? Perhaps it would scale better while tracing on many > cpus.
a cmpxchg global clock has exactly the same cacheline-bouncing properties as the lock here, so there's no real difference.
Ingo
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