[CentOS] Optimizing NFS over loopback
russ at vshift.com
Wed Aug 19 03:55:44 UTC 2009
Eugene Vilensky wrote:
>> Things are working, but seem pretty slow. I'm getting about 10mb/sec.
>> I was wondering where the bottleneck could be? Is there a way to
>> optimize the NFS service for better throughput?
>> I am accessing over 127.0.0.1
> Are the server and client coming from the same back-end spindles (I
> realize this is localhost)? How many spindles are involved?
> If you are reading/writing to the same disk(s) expect seeking to eat
> up the vast majority of potential throughput unless you have a total
> pool of sufficient IOPS.
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> CentOS at centos.org
One server is a single drive and a second server has two 300gb
velociraptors mirrored on a Dell Perc 5/i.
Either way I should be getting higher speeds. I'm getting about over
100MB/s when testing /dev/sda3 with hdparm.
Is there a test I can do to eliminate the disks as a bottleneck? Maybe
set something up in RAM?
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