From: Dmitry Gutov <dmitry@gutov.dev>
To: Paul Eggert <eggert@cs.ucla.edu>, Eli Zaretskii <eliz@gnu.org>,
Chris Hanson <cph@chris-hanson.org>
Cc: gerd.moellmann@gmail.com, 66288@debbugs.gnu.org, gregory@heytings.org
Subject: bug#66288: 29.1; Performance regression using pipe for subprocess
Date: Thu, 5 Oct 2023 01:54:43 +0300 [thread overview]
Message-ID: <8be747c8-42e5-f978-d331-b8c36c6d0349@gutov.dev> (raw)
In-Reply-To: <4406fc68-d033-1f88-c244-3c5d138b33ad@cs.ucla.edu>
On 05/10/2023 01:49, Paul Eggert wrote:
>> + fcntl (inchannel, F_SETPIPE_SZ, readmax);
>
> This call can fail if you aren't root and you exceed the system limit in
> /proc/sys/fs/pipe-max-size. So I suggest that if this fnctl fails with
> EPERM, trying it again after clipping to that limit.
Perhaps we'd rather fail loudly, so the user is aware that their
customized value cannot be applied.
next prev parent reply other threads:[~2023-10-04 22:54 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-01 0:57 bug#66288: 29.1; Performance regression using pipe for subprocess Chris Hanson
2023-10-01 8:39 ` Eli Zaretskii
2023-10-01 18:02 ` Chris Hanson
2023-10-02 5:02 ` Eli Zaretskii
2023-10-02 5:07 ` Eli Zaretskii
2023-10-02 17:14 ` Chris Hanson
2023-10-02 5:36 ` Eli Zaretskii
2023-10-02 18:22 ` Chris Hanson
2023-10-02 19:12 ` Gerd Möllmann
2023-10-02 19:27 ` Dmitry Gutov
2023-10-02 19:40 ` Gerd Möllmann
2023-10-02 20:15 ` Dmitry Gutov
2023-10-02 23:23 ` Chris Hanson
2023-10-03 5:06 ` Gerd Möllmann
2023-10-03 6:22 ` Eli Zaretskii
2023-10-03 6:48 ` Eli Zaretskii
2023-10-03 17:24 ` Eli Zaretskii
2023-10-03 19:12 ` Chris Hanson
2023-10-03 20:22 ` Dmitry Gutov
2023-10-03 17:42 ` Dmitry Gutov
2023-10-03 17:57 ` Eli Zaretskii
2023-10-03 20:58 ` Gregory Heytings
2023-10-03 21:26 ` Dmitry Gutov
2023-10-04 0:33 ` Chris Hanson
2023-10-04 6:52 ` Eli Zaretskii
2023-10-04 9:10 ` Gregory Heytings
2023-10-04 10:09 ` Dmitry Gutov
2023-10-04 17:55 ` Chris Hanson
2023-10-04 22:49 ` Paul Eggert
2023-10-04 22:54 ` Dmitry Gutov [this message]
2023-10-05 5:50 ` Eli Zaretskii
2023-10-05 10:48 ` Dmitry Gutov
2023-10-06 5:34 ` Eli Zaretskii
2023-10-05 5:49 ` Eli Zaretskii
2023-10-04 4:11 ` Gerd Möllmann
2023-10-04 6:55 ` Eli Zaretskii
2023-10-03 7:32 ` Eli Zaretskii
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