[Linux-cluster] I/O performance tests on GFS and GFS2 (cluster 2.01.00)

[Mad Unix]

Good J!

On Dec 12, 2007 12:44 PM, Pedro Bandim Faustino <pedro.faustino at fccn.pt>
wrote:

>  Hi Christopher,
>
> For GFS, we use the default which is 4096 bytes.
> As for NFSv3, we use {r,w}size=16384.
>
> Regards,
>
> Pedro Bandim Faustino
> email/sip: pedro.faustino at fccn.pt
> FCCN - Fundação para a Computação Científica Nacional
> Av. do Brasil, n.º 101
> 1700-066 Lisboa
> Tel: +351 21 844 0100
> Fax: +351 21 847 2167www.fccn.pt
>
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>
>
> Christopher Barry wrote:
>
> On Tue, 2007-12-11 at 17:10 +0000, Pedro Bandim Faustino wrote:
>
>
>  Hi all,
>
> I've conducted some I/O performance tests with IOzone on GFS and GFS2
> (among others for comparison).
> You can find them here:http://pedrofaustino.blogspot.com/2007/12/iozone-performance-tests-on-gfsnfsext3.html
>
> If any of you has done such tests, please write me back if the
> results/performance are as expected.
>
> Cheers,
> Pedro Bandim Faustino
> email/sip: pedro.faustino at fccn.pt
>
> FCCN - Fundação para a Computação Científica Nacional
> Av. do Brasil, n.º 101
> 1700-066 Lisboa
> Tel: +351 21 844 0100
> Fax: +351 21 847 2167www.fccn.pt
>
> Aviso de Confidencialidade
>
> Esta mensagem é exclusivamente destinada ao seu destinatário, podendo conter informação CONFIDENCIAL, cuja divulgação está expressamente vedada nos termos da lei. Caso tenha recepcionado indevidamente esta mensagem, solicitamos-lhe que nos comunique esse mesmo facto por esta via ou para o telefone +351 218440100 devendo apagar o seu conteúdo de imediato. This message is intended exclusively for its addressee. It may contain CONFIDENTIAL information protected by law. If this message has been received by error, please notify us via e-mail or by telephone +351 218440100 and delete it immediately.
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> Linux-cluster mailing listLinux-cluster at redhat.comhttps://www.redhat.com/mailman/listinfo/linux-cluster
>
>  Excellent work Pedro! Thank You. I have been looking for just such a
> comparison.
>
> Couple of questions:
> * What is the 'out-of-the-box record size' for GFS1?
> * '                                      ' for NFSv3?
>
> I'm assuming the {r,w}size=8192 we set NFS to is the record size?
>
> Regards,
> -C
>
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-- 
madunix
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