On Sat, 5 Feb 2011, Dr. David Alan Gilbert wrote:
* 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?
Hi,
Still OK when reading or writing & iperf test, so it does not appear to be
I/O or backplane bound. I also put both cards on the same CPU (lane-wise)
and it made no difference.
Device eth0 [10.0.1.4] (1/1):
================================================================================
Incoming:
###
###
###
###
###
### Curr: 1188.85 MByte/s
### Avg: 680.11 MByte/s
### Min: 0.00 MByte/s
### Max: 1188.88 MByte/s
### Ttl: 18.32 GByte
Outgoing:
