[ofa-general] OFED vs IB_GOLD IB_SRP Performance results

[chas williams - CONTRACTOR]

In message <4665A1FA.1000506 at asc.hpc.mil>,MAHMOUD HANAFI writes:
>OFED Setup:
>/sys/module/ib_srp/mellanox_workarounds = 1
>/sys/module/ib_srp/refcnt = 11
>/sys/module/ib_srp/srp_sg_tablesize = 256
>/sys/module/ib_srp/topspin_workarounds = 1
>
>/sys/block/sdd/queue/max_sectors_kb = 4096
>/sys/block/sdd/queue/nr_requests = 8192
>/sys/block/sdd/queue/read_ahead_kb = 128

what is the max_hw_sectors_kb for the ofed target?  unless you specified
max_sect= during login, i suspect you are getting the system defaults.
typically this is 512 sectors i think, which is where your performance
seems to start to diverge.