Hey,
Here's the problem: I've got a bunch of X4100 clients (NV_B43) and a Thumper
(NV_B43) NFS server using ZFS for storage. I'm currently using NFSv3 TCP.
Sequential read and write performance is excellent (100MB/s+) but creating a
large number of files, namely untar'ing something, is just dog slow. Because
people tend to use tar more than they create 10G sequential files, people are
complaining about the horrible performance.
I've created a duplicate test enviroment to do some tweeks but after two days
of playing with it I have yet to find the proper combination of tuning tweeks
to make this sing. Tar performance on the local disk is amazing, so its purely
an NFS issue.
I'm just wondering what disk layouts you're using, raid-z ? mirrors ?
stripes ? Pretty much just wondering if that could make a difference ?
I know you said that local disk access was fast, and that you think it
might be a NFS/ZFS issue.. Although, i do have to say, that if you've
got hundreds of concurrent slow accesses, that should be different
depending on the disk setup, not ?
Patrick
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