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Re: Re: [Linux-cluster] gfs export over nfs is very slow



Title: Re: Re: [Linux-cluster] gfs export over nfs is very slow

Try xfs which requires centosplus or suse sles9

 -----Original Message-----
From:   Raj  Kumar [mailto:rajkum2002 rediffmail com]
Sent:   Tue Jun 06 13:56:26 2006
To:     Wendy Cheng
Cc:     linux clustering
Subject:        Re: Re: [Linux-cluster] gfs export over nfs is very slow

No. I am measuring read speed. I used command "time cat test* > /dev/null"  to time reading 400 files. All our files are 33MB in size. Our processing applications reads many such files in real time and processes them. The app is falling behind because the read speed is less than 20MB/sec but it got to be able to read at least 2 files per second on average... so we need about 50-60Mb/sec transfer rate on our NFS clients. We could get about 45MB/sec with EXT3 but only about 20MB/sec with GFS.

Thanks,
Raj




On Wed, 07 Jun 2006 Wendy Cheng wrote :
>Raj Kumar wrote:
>
>>We are using GFS6.0 and RHEL3 servers. I have been using "async" for all my NFS exports. The speed that I reported is also using "async" option. Any other tips?
>>
>Was the "speed" measured by bonnie++ and only by bonnie++ ?
>
>-- Wendy




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