I have set up a local NFS server and I'm accessing it over the localhost interface. Here is my /etc/exports file:
/data/vm 127.0.0.1(rw,no_root_squash,async,no_acl,wdelay,no_subtree_check) /data/iso 127.0.0.1(ro,no_root_squash,async,no_acl,wdelay,no_subtree_check)
Here is the relevant /etc/fstab entry
/dev/sda3/data ext3 defaults12
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
Thanks in advance,
Russ
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.
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. _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
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?
Russ
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Eugene Vilensky -
nate -
Ruslan Sivak