From: Eli Zaretskii <eliz@gnu.org>
To: "Roland Winkler" <winkler@gnu.org>
Cc: 22305@debbugs.gnu.org
Subject: bug#22305: 24.5; permanent 100% CPU load for no apparent reason
Date: Mon, 04 Jan 2016 19:16:46 +0200 [thread overview]
Message-ID: <834met6z9d.fsf@gnu.org> (raw)
In-Reply-To: <41538.98876.177125.22154@gargle.gargle.HOWL> (winkler@gnu.org)
> Date: Mon, 4 Jan 2016 10:48:02 -0600
> From: "Roland Winkler" <winkler@gnu.org>
>
> Lately emacs gives me some strange problem, where according to `top'
> the CPU load due to the emacs process goes up to a permanent value
> of 100% (and I notice this because the laptop fan starts spinning
> loudly), whereas according to `ps' the emacs process continues to
> give rise to only a marginal CPU load. While this happens, emacs
> responds normally, so it appears that emacs is not trying to do
> anything unusual in the background.
Not necessarily. AFAIR, 'top' shows the CPU usage of each program in
terms of processor execution units. IOW, 100% means Emacs is pegging
a single execution unit. How many execution units (cores) do you have
on that system?
> What can I do to pin this down further? So far, I have not noticed
> anything that triggers this behavior reproducibly and my workaround
> has been to restart emacs. But that's not nice for a recurring
> problem (about once per day).
When this happens, attach a debugger and show us the backtrace,
including the Lisp backtrace.
next prev parent reply other threads:[~2016-01-04 17:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-04 16:48 bug#22305: 24.5; permanent 100% CPU load for no apparent reason Roland Winkler
2016-01-04 17:16 ` Eli Zaretskii [this message]
2016-01-04 17:47 ` Roland Winkler
2016-12-07 18:57 ` Glenn Morris
2016-01-04 18:33 ` Michael Heerdegen
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