From: Eli Zaretskii <eliz@gnu.org>
To: Stephen Leake <stephen_leake@stephe-leake.org>
Cc: 18626@debbugs.gnu.org
Subject: bug#18626: 24.3.94; communication with subprocess is slow
Date: Sun, 05 Oct 2014 17:43:27 +0300 [thread overview]
Message-ID: <831tqmo9v4.fsf@gnu.org> (raw)
In-Reply-To: <85zjdad47f.fsf@stephe-leake.org>
> From: Stephen Leake <stephen_leake@stephe-leake.org>
> Cc: 18626@debbugs.gnu.org
> Date: Sun, 05 Oct 2014 08:41:08 -0500
>
> (find-file "xdisp.c")
> (pipe-torture
> "/home/Projects/org.emacs.ada-mode.stephe-1/build/wisi/debug_counted"
> "4096" "974230")
>
> 0.344027
>
> This is comparable to the time on Windows with a large buffer in the
> subprocess. So apparently it is not using the same delay in
> send_process. Or the IO system is providing a large buffer.
Evidently, subprocess I/O is more efficient on GNU/Linux than it is on
Windows. Perhaps this is related to the fact that by default
GNU/Linux uses PTYs for that, not pipes. Did you try your experiments
with process-connection-type bound to nil?
next prev parent reply other threads:[~2014-10-05 14:43 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-04 6:47 bug#18626: 24.3.94; communication with subprocess is slow stephen_leake
2014-10-04 8:07 ` Eli Zaretskii
2014-10-05 13:20 ` Stephen Leake
2014-10-05 13:41 ` Stephen Leake
2014-10-05 14:43 ` Eli Zaretskii [this message]
2014-10-05 18:19 ` Stephen Leake
2014-10-04 8:11 ` Stephen Leake
2014-10-04 8:32 ` Eli Zaretskii
2014-10-04 22:29 ` Stefan Monnier
2014-10-05 2:46 ` Eli Zaretskii
2014-10-05 13:34 ` Stephen Leake
2014-10-05 14:40 ` Eli Zaretskii
2014-10-05 18:25 ` Stephen Leake
2014-10-05 19:04 ` Eli Zaretskii
2014-10-08 13:29 ` Stephen Leake
2014-10-08 13:53 ` Eli Zaretskii
2014-10-10 8:07 ` Stephen Leake
2014-10-10 9:13 ` Eli Zaretskii
2014-10-10 8:47 ` Stephen Leake
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