From: Eli Zaretskii <eliz@gnu.org>
To: Pip Cet <pipcet@protonmail.com>
Cc: spd@toadstyle.org, gerd.moellmann@gmail.com, emacs-devel@gnu.org
Subject: Re: igc, macOS avoiding signals
Date: Sat, 28 Dec 2024 21:30:06 +0200 [thread overview]
Message-ID: <86y0zzr4g1.fsf@gnu.org> (raw)
In-Reply-To: <87zfkfei1z.fsf@protonmail.com> (message from Pip Cet on Sat, 28 Dec 2024 19:15:26 +0000)
> Date: Sat, 28 Dec 2024 19:15:26 +0000
> From: Pip Cet <pipcet@protonmail.com>
> Cc: spd@toadstyle.org, gerd.moellmann@gmail.com, emacs-devel@gnu.org
>
> "Eli Zaretskii" <eliz@gnu.org> writes:
>
> > Ah, okay. I note that if we'd block signals when calling MPS and
> > unblock on exit, then these delays couldn't have happened, AFAIU.
>
> We can't do so for SIGSEGV calling into MPS, so this wouldn't fix all
> cases.
We don't need to block SIGSEGV (or any other fatal signal). We only
need to block SIGPROF, SIGALRM and SIGCHLD.
> Blocking signals around mps_alloc slows down (make-list 1000000
> nil) by a factor of about 5 (on current GNU/Linux; possibly
> significantly more on other operating systems).
No, I think only GNU/Linux is affected.
You are saying that sigblock is very expensive? Can you measure it?
next prev parent reply other threads:[~2024-12-28 19:30 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-28 13:24 igc, macOS avoiding signals Sean Devlin
2024-12-28 13:28 ` Gerd Möllmann
2024-12-28 14:31 ` Eli Zaretskii
2024-12-28 14:45 ` Gerd Möllmann
2024-12-28 15:12 ` Pip Cet via Emacs development discussions.
2024-12-28 17:30 ` Eli Zaretskii
2024-12-28 18:40 ` Pip Cet via Emacs development discussions.
2024-12-28 18:50 ` Eli Zaretskii
2024-12-28 19:07 ` Eli Zaretskii
2024-12-28 19:20 ` Pip Cet via Emacs development discussions.
2024-12-28 19:36 ` Eli Zaretskii
2024-12-28 20:54 ` Pip Cet via Emacs development discussions.
2024-12-29 5:51 ` Eli Zaretskii
2024-12-28 19:15 ` Pip Cet via Emacs development discussions.
2024-12-28 19:30 ` Eli Zaretskii [this message]
2024-12-28 16:29 ` Pip Cet via Emacs development discussions.
2024-12-29 2:21 ` Sean Devlin
2024-12-29 12:22 ` Pip Cet via Emacs development discussions.
2024-12-29 15:01 ` Gerd Möllmann
-- strict thread matches above, loose matches on Subject: below --
2024-12-28 6:40 Gerd Möllmann
2024-12-28 12:49 ` Pip Cet via Emacs development discussions.
2024-12-28 12:55 ` Gerd Möllmann
2024-12-28 13:50 ` Óscar Fuentes
2024-12-29 8:02 ` Helmut Eller
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