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Date: Thu, 13 Jun 2013 23:21:14 -0700
Message-ID: <CAN0CFw3QZ-ukw+MauBR+YE35E=Q2BOBmcFAEFV+gR8eHq_1WEQ@mail.gmail.com>
Subject: Re: [gentoo-user] managing RAM usage
From: Grant <emailgrant@gmail.com>
To: gentoo-user@lists.gentoo.org
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>> I'm trying to maximize the number of servers I can run on my machine
>> without running out of physical RAM. I noticed something strange when
>> comparing top and free statistics:
>>
>> top says each PID associated with a particular server has a RES of
>> about 100M. Does that mean each running instance of that server
>> reserves 100MB? Since there are 20 of these servers running, this
>> seems contradictory to the output from free which indicates less than
>> 1GB used -/+ buffers/cache.
>>
>> Is there any way to monitor RAM usage over time to see how close I'm
>> getting to using all of my physical RAM?
>>
>> - Grant
>
> Check out my friend's information here http://koltsoff.com/pub/ures/ and the
> accompanying Meminfo script (linked at bottom of ^ web page).
> --
> Happy Penguin Computers >')
Thanks for that info. The answer to this question seems pretty
indefinite. I'm now logging 'free' to a file once per minute so I can
see how real-world traffic affects overall memory usage. Still I
would need to see the system with processed forked all the way to
MaxClients to know how close it gets to OOM.
- Grant