Thanks Richard, I appreciate your advice.
I was able to sature the channel using: XDD, 10 threads writing in 10 OST, each
OST in difference OSS and this is the result:
ETHERNET
T Q Bytes Ops Time
Rate IOPS Latency
Are you sure your client is using the IB network? What does:
lctl get_param osc.*.imports
report for the NIDs of the OSTs? If it is still using the TCP connection you
may need to run writeconf to fix the client config log.
Cheers, Andreas
On May 19, 2014, at 4:34, Pardo Diaz, Alfonso
Alfonso,
Based on my attempts to benchmark single client Lustre performance, here is
some advice/comments that I have. (YMMV)
1) On the IB client, I recommend disabling checksums (lctl set_param
osc.*.checksums=0). Having checksums enabled sometimes results in a
significant performance hit.
