Jim Rees wrote:
Kris Kennaway wrote:
Mohan's previous commit that increases the nfs server socket buffer size
is also very important for NFS performance. Without it I was only
getting 1-2MB/sec throughput over 10Gb ethernet with UDP mounts
You're trying to use nfs/udp at 10G? I wouldn't expect that to work.
Well there some corruption issues, yes. These happen even at 1ge
though, and seem to be due to packet loss (e.g. one problem is that the
ID number is 16 bits so if we are doing fragment reassembly with a
dropped packet it can easily roll over and assemble a corrupted packet
before the correct one is retransmitted).
Depending on what workload I use I see up to about 300 MB/sec throughput
before it is limited by the nfsd.
I've recently been trying to get good performance from nfs at 10Gbps (on
linux). The required window is 150MB for a transatlantic link.
Heh, that probably has its own challenges :)
Kris
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