From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: How should this profiler report interpreted?
Date: Fri, 26 Mar 2021 15:41:45 -0400 [thread overview]
Message-ID: <jwvsg4h1z9d.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: 87y2e9hhug.fsf@zoho.eu
Emanuel Berg via Users list for the GNU Emacs text editor [2021-03-26 19:48:07] wrote:
> Stefan Monnier wrote:
>> If that's indeed the code in which all the time is spent,
>> then the profile is very misleading (IOW bogus) because the
>> time won't be spent in `save-excursion` but in
>> `re-search-backward`.
> Yes, but the regexps, expensive as they may be, shouldn't make
> the whole computer non-responsive, right?
Nothing in Emacs should ever make the whole computer non-responsive,
indeed, tho this is largely the responsibility of the OS rather than of
Emacs itself.
Did the OP say that his whole computer was unresponsive?
> 99% CPU?
The regexp matcher will happily use 99% of a CPU core given the
chance, yes.
Stefan
next prev parent reply other threads:[~2021-03-26 19:41 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-26 15:24 How should this profiler report interpreted? scame
2021-03-26 17:58 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-03-26 18:38 ` Stefan Monnier
2021-03-26 18:48 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-03-26 19:41 ` Stefan Monnier [this message]
2021-03-26 21:45 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-03-27 16:22 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-03-27 16:30 ` Emanuel Berg via Users list for the GNU Emacs text editor
-- strict thread matches above, loose matches on Subject: below --
2021-03-26 21:57 scame via Users list for the GNU Emacs text editor
2021-03-26 22:04 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-03-26 19:48 scame via Users list for the GNU Emacs text editor
2021-03-26 20:26 ` Joost Kremers
2021-03-26 15:28 scame via Users list for the GNU Emacs text editor
2021-03-26 15:49 ` Eli Zaretskii
2021-03-26 17:59 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-03-26 13:59 scame
2021-03-26 14:04 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-03-26 14:35 ` Eli Zaretskii
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