[Users] Sane value for dcachesize

[Pavel Odintsov]

Hello!

We expected same troubles and detected very big performance
degradation when dcachesize limit fires.

I can suggest switch to vswap and completely disable any limits for dcache.

On Tue, Jan 20, 2015 at 1:36 PM, Roman Haefeli <reduzent at gmail.com> wrote:
> Hi all
>
> We're running a bunch of Containers on hostnodes that still have plenty
> of free memory. Also, we monitor the user beancounters on the hostnodes
> and it appears that the barrier for dcachesize is exceed by many
> containers and this causes a warning in our monitoring system.
>
> Since there is no shortage of memory, I don't see why we should limit
> the cache for the file system. Would there be a problem of setting much
> higher value, say 30GB, for this parameter? Is there something one needs
> to take care of when increasing DCACHESIZE?
>
> Thanks,
> Roman
>
>
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-- 
Sincerely yours, Pavel Odintsov