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From: Eberhard Stoll <eberhard.stoll@berghof.com>
To: linuxppc-embedded@ozlabs.org
Subject: Re: Interpreting /proc/meminfo. How much free memory do I have?
Date: Mon, 27 Mar 2006 11:00:49 +0200	[thread overview]
Message-ID: <4427A9C1.3060000@berghof.com> (raw)
In-Reply-To: <200603270953.11079.roger.larsson@norran.net>

Roger Larsson schrieb:

>On måndag 27 mars 2006 08.49, antonio.dibacco wrote:
>  
>
>>Hi,
>>
>>I'm a little bit puzzled with the fields in /proc/meminfo. Which fields
>>have I to sum up to get the amount of free memory?
>>    
>>
>
>>From a 2.6 /proc/meminfo
>
>MemTotal:       515532 kB
>MemFree:          6012 kB
>Buffers:         79964 kB
>Cached:          83264 kB
>SwapCached:      82840 kB
>Active:         294024 kB
>Inactive:       130304 kB
>- - -
>
>Completely free is only MemFree. But those pages are only needed for
>interrupt handlers (close enough).
>
>Cached pages are also free but since they contain data that maybe will
>be needed again (unmodified data that already is on disk) they are not
>returned to MemFree state.
>
>Inactive pages has not been in use for awhile and can be written out
>if needed (some are probably unmodified and quick to get)
>  
>
Active + Inactive + MemFree is not equal MemTotal. Where can i find the
offset?

Thanks,
Eberhard

  reply	other threads:[~2006-03-27  9:00 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-27  6:49 Interpreting /proc/meminfo. How much free memory do I have? antonio.dibacco
2006-03-27  7:53 ` Roger Larsson
2006-03-27  9:00   ` Eberhard Stoll [this message]
2006-03-27  9:38     ` antonio.dibacco
2006-03-27 16:49       ` Jeff Angielski

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