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Re: [PATCH v2 3/4] virtio-blk: default num_queues to -smp N
From: |
Cornelia Huck |
Subject: |
Re: [PATCH v2 3/4] virtio-blk: default num_queues to -smp N |
Date: |
Mon, 27 Jan 2020 14:14:28 +0100 |
On Fri, 24 Jan 2020 10:01:58 +0000
Stefan Hajnoczi <address@hidden> wrote:
> Automatically size the number of request virtqueues to match the number
> of vCPUs. This ensures that completion interrupts are handled on the
> same vCPU that submitted the request. No IPI is necessary to complete
> an I/O request and performance is improved.
Same comment regarding other transports.
>
> Signed-off-by: Stefan Hajnoczi <address@hidden>
> ---
> hw/block/virtio-blk.c | 6 +++++-
> hw/core/machine.c | 1 +
> hw/virtio/virtio-blk-pci.c | 9 ++++++++-
> include/hw/virtio/virtio-blk.h | 2 ++
> 4 files changed, 16 insertions(+), 2 deletions(-)
Reviewed-by: Cornelia Huck <address@hidden>
- [PATCH v2 0/4] virtio-pci: enable blk and scsi multi-queue by default, Stefan Hajnoczi, 2020/01/24
- [PATCH v2 1/4] virtio-scsi: introduce a constant for fixed virtqueues, Stefan Hajnoczi, 2020/01/24
- [PATCH v2 2/4] virtio-scsi: default num_queues to -smp N, Stefan Hajnoczi, 2020/01/24
- [PATCH v2 3/4] virtio-blk: default num_queues to -smp N, Stefan Hajnoczi, 2020/01/24
- Re: [PATCH v2 3/4] virtio-blk: default num_queues to -smp N,
Cornelia Huck <=
- [PATCH v2 4/4] vhost-user-blk: default num_queues to -smp N, Stefan Hajnoczi, 2020/01/24
- Re: [PATCH v2 0/4] virtio-pci: enable blk and scsi multi-queue by default, Stefano Garzarella, 2020/01/27