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


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.


On Thu, Mar 4, 2010 at 2:33 PM, Alan A <alan zg 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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