[Linux-cluster] GFS Tuning - it's just slow, to slow for production

[Corey Kovacs]

Alan,

What are you using for backend storage? I did some minor tuning for my
EVA8100 and went from 200MB/s to 550MB/s. Also, by default, plocks are set
to some rediculously small number, 100 if I recall. You can rais or
eliminate that limit fairly easy. That seems to help as well.

If people know more about your hardware, it'll help in finding what knob to
turn.

-C

On Thu, Mar 4, 2010 at 2:33 PM, Alan A <alan.zg at gmail.com> wrote:

> We are trying to deploy GFS in production, and are experiencing major
> performance issues. What parameters in GFS settune can be changed to
> increase I/O, to better tune performance? Application we run utilizes a lot
> of I/O, please advise.
>
> We experience OK performance when starting, but as things ramp up and we
> get few processes going GFS slows dramatically.
>
> --
> Alan A.
>
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