GNU bug report logs - #53041
29.0.50; TRAMP spins the CPU by polling the child processes without a delay

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From: Dima Kogan <dima <at> secretsauce.net>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: 53041 <at> debbugs.gnu.org
Subject: bug#53041: 29.0.50; TRAMP spins the CPU by polling the child processes without a delay
Date: Fri, 14 Jan 2022 10:33:47 -0800

Michael Albinus <michael.albinus <at> gmx.de> writes:

> This was discussed several times already. The most recent discussion wrt
> Tramp starts at <https://lists.gnu.org/archive/html/emacs-devel/2019-01/msg00301.html>.
>
> The pattern (while (accept-process-output p) was proposed by Stefan
> Monnier in <https://lists.gnu.org/archive/html/emacs-devel/2019-01/msg00338.html>,
> so this is used in Tramp. I do not want to reopen this can of worms, really.
>
> To fix your problem of a broken connection, the Tramp manual recommends
> to add "ServerAliveInterval 5" in your ~/.ssh/config, see (info "(tramp)
> Frequently Asked Questions") . Additionally, you might set "ServerAliveCountMax 2".

Thanks for the links, Michael. I'll dogfood some patches for a while,
and we can maybe talk about it later if those consistently work well.

Thanks

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