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Re: "ps -o %mem" and free memory in Linux

From <tomas@tuxteam.de>
Newsgroups linux.debian.user
Subject Re: "ps -o %mem" and free memory in Linux
Date 2020-09-29 17:30 +0200
Message-ID <AUpJM-4QT-3@gated-at.bofh.it> (permalink)
References <AUeuZ-6ze-1@gated-at.bofh.it> <AUjXH-1qr-3@gated-at.bofh.it> <AUpA5-4Nh-5@gated-at.bofh.it>
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On Tue, Sep 29, 2020 at 10:19:17PM +0700, Victor Sudakov wrote:

[...]

> Those are kind of virtual things, as far as I understand. If not %mem, then
> what `ps` parameter can show me how many php-fpm workers I can safely start
> before RAM is exhausted?

This is a seemingly easy question with a surprisingly difficult answer.

I don't have a good reference ready for you, but I poked a bit the
Intertubes and this [1] at least might give you a rough impression
of what kinds of things are involved.

Cheers

[1] https://stackoverflow.com/questions/131303/how-can-i-measure-the-actual-memory-usage-of-an-application-or-process

 - t

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Thread

"ps -o %mem" and free memory in Linux Victor Sudakov <vas@sibptus.ru> - 2020-09-29 05:30 +0200
  Re: "ps -o %mem" and free memory in Linux Tixy <tixy@yxit.co.uk> - 2020-09-29 09:20 +0200
    Re: "ps -o %mem" and free memory in Linux Victor Sudakov <vas@sibptus.ru> - 2020-09-29 17:20 +0200
      Re: "ps -o %mem" and free memory in Linux Klaus Singvogel <deb-user-ml@singvogel.net> - 2020-09-29 17:40 +0200
        Re: "ps -o %mem" and free memory in Linux Victor Sudakov <vas@sibptus.ru> - 2020-09-29 18:00 +0200
          Re: "ps -o %mem" and free memory in Linux Fabrice BAUZAC-STEHLY <noon@mykolab.com> - 2020-10-02 21:50 +0200
  Re: "ps -o %mem" and free memory in Linux <tomas@tuxteam.de> - 2020-09-29 11:20 +0200
    Re: "ps -o %mem" and free memory in Linux Victor Sudakov <vas@sibptus.ru> - 2020-09-29 17:20 +0200
      Re: "ps -o %mem" and free memory in Linux <tomas@tuxteam.de> - 2020-09-29 17:30 +0200
        Re: "ps -o %mem" and free memory in Linux Victor Sudakov <vas@sibptus.ru> - 2020-09-29 18:00 +0200

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