* Justin Piszcz (jpiszcz@xxxxxxxxxxxxxxx) wrote:
On Sat, 5 Feb 2011, Emmanuel Florac wrote:
Le Sat, 5 Feb 2011 14:35:52 -0500 (EST) vous écriviez:
To respond to everyone:
Did you try launching 4 simultaneous cp operations over nfs to get to
1.2 GB/s?
I've witnessed single stream copy performance with Samba being less than
maximum due to Samba limitations. Running multiple copy ops in parallel then
usually saturates the pipe.
I tried 4 simultaenous cp's and there was little change, 250-320MiB/s.
So I think you've said network benchmarks are OK, disc benchmarks are OK, but
a copy over the network is slow.
What happens if you run a disc benchmark at the same time as a network benchmark;
even though the two aren't related? Can you keep the disc busy writing even when
the network is being pushed?