On 6/19/24 16:22, Pavel Begunkov wrote: >On 6/19/24 08:18, hexue wrote: > >> Test results: >> set 8 poll queues, fio-3.35, Gen5 SSD, 8 CPU VM >> >> per CPU utilization: >> read(128k, QD64, 1Job) 53% write(128k, QD64, 1Job) 45% >> randread(4k, QD64, 16Job) 70% randwrite(4k, QD64, 16Job) 16% >> performance reduction: >> read 0.92% write 0.92% randread 1.61% randwrite 0% > >What are numbers for normal / non-IOPOLL runs? for normal poll, per CPU utilization is 100%*8 performance like this: read write randread randwrite normal poll BW=10.9GiB/s BW=6202MiB/s IOPS=1682k IOPS=255k hybrid poll BW=10.8GiB/s BW=6145MiB/s IOPS=1655k IOPS=255k -- hexue
