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From: Eli Zaretskii via web <issues.guix.gnu.org@elephly.net>
To: 43406@debbugs.gnu.org
Subject: bug#43406: Emacs 27.1 memory consumption grows indefinitely
Date: Fri, 18 Sep 2020 08:53:23 +0200	[thread overview]
Message-ID: <7f6cec640620.a886a4eb1532c11@guile.gnu.org> (raw)
In-Reply-To: <874ko0b12w.fsf@gnu.org>

Please don't use "memory profile" as any indication of the Emacs memory usage: it is entirely unrelated to memory.

The Emacs profiler only profiles CPU usage.  It samples the PC register using a special signal (SIGPROF), which is the usual method of sampling CPU in profilers.  For those systems which don't have SIGPROF, it can fall back on sampling the CPU whenever Emacs calls one of the memory allocation functions -- this is called "mem" profiling.

So the "memory" profiles shown here don't show memory usage.






  parent reply	other threads:[~2020-09-18  8:39 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-14 19:38 bug#43406: Emacs 27.1 memory consumption grows indefinitely Ludovic Courtès
2020-09-14 20:40 ` Mark H Weaver
2020-09-14 21:56 ` Ricardo Wurmus
2020-09-14 22:11   ` zimoun
2020-09-15 14:19 ` Ludovic Courtès
2020-09-15 14:21   ` Ludovic Courtès
2020-09-15 14:47     ` Pierre Neidhardt
2020-09-15 16:48       ` Ludovic Courtès
2020-09-15 17:02         ` Pierre Neidhardt
2020-09-15 14:45   ` Michael Rohleder
2020-09-18  6:53 ` Eli Zaretskii via web [this message]
2020-09-18 11:47   ` Ludovic Courtès

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