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: Fri, 10 Oct 2014 12:13:27 +0300 [thread overview]
Message-ID: <831tqgb83s.fsf@gnu.org> (raw)
In-Reply-To: <85lhoouz4p.fsf@stephe-leake.org>
> From: Stephen Leake <stephen_leake@stephe-leake.org>
> Cc: 18626@debbugs.gnu.org
> Date: Fri, 10 Oct 2014 03:07:02 -0500
>
> > I think I will set that to -1, on the trunk, except on Windows 9X
> > systems. That should cause the reader thread yield its time slice
> > before returning. Can you see how this affects your use case?
>
> That has essentially no effect when running on a multi-core machine; the
> subprocess is scheduled separately.
Well, yes, but the other cores could be busy, e.g., by "make -jN", or
even by other Emacs subprocesses running in parallel. Also, don't
forget that Emacs itself has at least 3 active threads when even a
single subprocess is running: the main (a.k.a. "Lisp") thread, the
input thread which reads Windows messages, and the reader thread.
next prev parent reply other threads:[~2014-10-10 9:13 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
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 [this message]
2014-10-10 8:47 ` Stephen Leake
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