> Actually, I'm not sure if I've tried NFS & SCSI together without
> gzip. I was doing the NFS tuning with NFS->gzip->/dev/null.
The following tests were done without gzip running, so CPU load
is low.
Well, running ping -f with 1000-byte packets gives me about 1500
round-trips/second with no disk activity (and a few dropped
packets - about 0.05%).
During heavy disk reads, I get a 14% drop in packet throughput,
but no increase in packet loss. So, in theory, this should
just mean approx 14% drop in NFS performance.
This suggests that the problem is not actually in the networking
layers, but higher up. However, I don't have much faith in the
NICs anyway, so I'll hold off any further tweaking until I get
better NICs.
Later,
Kenn
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