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SubjectRe: [Patch v2] scsi: storvsc: Correctly set number of hardware queues for IDE disk
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Date

Long,

> Commit 0ed881027690 ("scsi: storvsc: setup 1:1 mapping between
> hardware queue and CPU queue") introduced a regression for disks
> attached to IDE. For these disks the host VSP only offers one VMBUS
> channel. Setting multiple queues can overload the VMBUS channel and
> result in performance drop for high queue depth workload on system
> with large number of CPUs.

Applied to 5.5/scsi-fixes, thanks!

--
Martin K. Petersen Oracle Linux Engineering

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