Re: Mapped more than Cached in /proc/meminfo

["=/_00/\\/\\" <z0032oom@xxxxxxxxx>]

Hi,

Thanks for replying
Here is one observation worth mentioning.
On boot system it shows Mapped < Cached (In fact much less)
After using system for some time following commands are executed.
# sync and echo 3 > /proc/sys/vm/drop_cache

Whenever above command is executed I can see Mapped > Cached.

This is somewhat confusing for me.
Could you please explain ?

Regards,
  ~/

On Sat, Aug 6, 2011 at 9:57 AM, Mulyadi Santosa <mulyadi.santosa@xxxxxxxxx> wrote:

On Fri, Aug 5, 2011 at 21:16, =/_00/\/\ <z0032oom@xxxxxxxxx> wrote:
> Hi,
>
> I am trying to analyze memory usage on my system.
> As first step I am monitoring /proc/meminfo.
> Surprisingly I see Mapped value is more than Cached.
>
> So in which case is it possible to have Mapped more than Cached ?

your apps mmap() less than the amount of files content that are cached
through normal read() AFAIK


--
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com

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