On 4/5/21 8:19 PM, Ming Lei wrote: > Yanhui found that write performance is degraded a lot after applying > hctx shared tagset on one test machine with megaraid_sas. And turns out > it is caused by none scheduler which becomes default elevator caused by > hctx shared tagset patchset. > > Given more scsi HBAs will apply hctx shared tagset, and the similar > performance exists for them too. > > So keep previous behavior by still using default mq-deadline for queues > which apply hctx shared tagset, just like before. Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>
