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Re: igc, macOS avoiding signals


From: Eli Zaretskii
Subject: Re: igc, macOS avoiding signals
Date: Sat, 04 Jan 2025 11:59:55 +0200

> From: Gerd Möllmann <gerd.moellmann@gmail.com>
> Cc: eller.helmut@gmail.com,  pipcet@protonmail.com,  spd@toadstyle.org,
>   emacs-devel@gnu.org
> Date: Sat, 04 Jan 2025 10:02:07 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Why does time matter?  A profile shows the percentage of the samples
> > that we found ourselves in every function.  Time is never of any
> > importance, AFAIU.  That's why the frequency of SIGPROF does not
> > matter very much, except for very low percent values.  IOW, the
> > frequency of SIGPROF can explain why we miss some functions, but
> > that's all.
> 
> Well, when I read "42% so-and-so" in the profile result, I always read
> that as "42% of the time spent in so-and-so".

But that's not an accurate interpretation, is it?  My interpretation
of 42% is "we found 42% of samples to be inside the function
so-and-so."



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