IPv6 NFS performance
ftigeot at wolfpond.org
Mon Nov 22 11:35:00 PST 2010
I have recently setup a NFS share with IPv6 addresses on a gigabit lan. The
performance is abysmal: 500 KB/s max.
The same server and client on the same lan, have no trouble reaching tens of
Time spent copying some big files from the server to a local disk:
v4: sent 86109382 bytes received 31 bytes 24602689.43 bytes/sec
v6: sent 49660678 bytes received 31 bytes 266277.26 bytes/sec
All mounts were using tcp.
IPv6 speed is about 100 time slower than IPv4.
I don't believe I'm doing anything wrong. How can I diagnose/fix this issue ?
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