On 10/27/2014 03:59 PM, Mark Kirkwood wrote: > On 28/10/14 05:20, Ketor D wrote: >> V8 patch runs good. >> >> The iops is 33032. If I just comment the usleep(100) in the master, I >> can get iops 35245. >> The CPU usage about the two test is same 120%. >> So maybe this patch could be better! >> > > Yeah, v8 is working for me. > > I'm seeing it a bit slower for some blocksizes, but faster (or perhaps > about the same within repeat measurement error) for others: > > blocksize k | patched iops | orig iops > ------------+---------------+----------- > 4 | 12265 | 11930 > 128 | 5800 | 7100 > 1024 | 1193 | 1196 As for most things, the difference should be in IOPS, not bandwidth. So I would assume that the above are within normal variance, since 4k should show the biggest difference, then drop off after that and match at 128/1024k. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
