On 5/16/23 10:10 PM, Jason Wang wrote:
> On Sat, Apr 29, 2023 at 12:32 AM Mike Christie
> wrote:
>>
>> For vhost-scsi with 3 vqs or more and a workload that tries to use
>> them in parallel like:
>>
>> fio --filename=/dev/sdb --direct=1 --rw=randrw --bs=4k \
>> --ioengine=libaio --iodepth=128 --
On Sat, Apr 29, 2023 at 12:32 AM Mike Christie
wrote:
>
> For vhost-scsi with 3 vqs or more and a workload that tries to use
> them in parallel like:
>
> fio --filename=/dev/sdb --direct=1 --rw=randrw --bs=4k \
> --ioengine=libaio --iodepth=128 --numjobs=3
>
> the single vhost worker thread will
For vhost-scsi with 3 vqs or more and a workload that tries to use
them in parallel like:
fio --filename=/dev/sdb --direct=1 --rw=randrw --bs=4k \
--ioengine=libaio --iodepth=128 --numjobs=3
the single vhost worker thread will become a bottlneck and we are stuck
at around 500K IOPs no matter ho
