I should add this is over 10G ethernet. On Wed, May 13, 2015 at 6:03 PM, Suresh Rajagopalan <sraja97@xxxxxxxxx> wrote: > I have a Intel DC3700 800G Pcieflash which I'm trying to benchmark > with LIO. I see a discrepancy in fio benchmarks on this devices when > running directly (/dev/nvme0n1) and when running via iscsi. > > The following fio file produces about 400k iops on 100% read. A > identical fio file run over a ISCSI device to LIO where the backstore > is the same flash /dev/nvme0n1 produces about 40k iops. > > Is there something I am missing? The queue depth is 32, but the > numbers do not change even when bumped upto 128. > > Thanks for the help > Suresh > > > ---------------------------- > > [global] > description=Emulation of Intel IOmeter File Server Access Pattern > filename=/dev/nvme0n1 > [iometer] > bssplit=4k/100 > rw=randread > direct=1 > size=18000m > ioengine=libaio > > iodepth_batch=4 > iodepth_batch_complete=32 > numjobs=64 -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
