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Re: How performance critical is fsys_rt_sigprocmask()?

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On Wed, 2011-08-24 at 09:13 -0600, David Mosberger-Tang wrote:
> Matt,
> As I remember it, it was the single system-call on the critical path of
> libunwind.  Don't remember the numbers, but it was significant.

Interesting. So that'd be the critical path for things like performance
analysis tools that record stack traces? Yeah, I can see how you'd want
the stack trace recording to have very little overhead.

I guess I'll start writing ia64 assembly then...

Matt Fleming, Intel Open Source Technology Center

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