From: Cornelia Huck <cohuck@redhat.com>
To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Fam Zheng <fam@euphon.net>,
Eduardo Habkost <ehabkost@redhat.com>,
qemu-block@nongnu.org, "Michael S. Tsirkin" <mst@redhat.com>,
qemu-devel@nongnu.org, Max Reitz <mreitz@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [PATCH v2 4/4] vhost-user-blk: default num_queues to -smp N
Date: Mon, 27 Jan 2020 14:17:10 +0100 [thread overview]
Message-ID: <20200127141710.5785ba2b.cohuck@redhat.com> (raw)
In-Reply-To: <20200124100159.736209-5-stefanha@redhat.com>
On Fri, 24 Jan 2020 10:01:59 +0000
Stefan Hajnoczi <stefanha@redhat.com> 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.
Ok, that one is pci-only anyway.
>
> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
> ---
> hw/block/vhost-user-blk.c | 6 +++++-
> hw/core/machine.c | 1 +
> hw/virtio/vhost-user-blk-pci.c | 6 ++++++
> include/hw/virtio/vhost-user-blk.h | 2 ++
> 4 files changed, 14 insertions(+), 1 deletion(-)
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
next prev parent reply other threads:[~2020-01-27 13:19 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-24 10:01 [PATCH v2 0/4] virtio-pci: enable blk and scsi multi-queue by default Stefan Hajnoczi
2020-01-24 10:01 ` [PATCH v2 1/4] virtio-scsi: introduce a constant for fixed virtqueues Stefan Hajnoczi
2020-01-27 12:59 ` Cornelia Huck
2020-01-24 10:01 ` [PATCH v2 2/4] virtio-scsi: default num_queues to -smp N Stefan Hajnoczi
2020-01-27 13:10 ` Cornelia Huck
2020-01-29 15:44 ` Stefan Hajnoczi
2020-01-30 0:29 ` Paolo Bonzini
2020-01-30 10:52 ` Stefan Hajnoczi
2020-01-30 11:03 ` Cornelia Huck
2020-02-03 10:25 ` Sergio Lopez
2020-02-03 10:35 ` Michael S. Tsirkin
2020-02-03 10:51 ` Cornelia Huck
2020-02-03 10:57 ` Daniel P. Berrangé
2020-02-03 11:39 ` Sergio Lopez
2020-02-03 12:53 ` Michael S. Tsirkin
2020-02-11 16:20 ` Stefan Hajnoczi
2020-02-11 16:31 ` Michael S. Tsirkin
2020-02-12 11:18 ` Stefan Hajnoczi
2020-02-21 10:55 ` Stefan Hajnoczi
2020-01-24 10:01 ` [PATCH v2 3/4] virtio-blk: " Stefan Hajnoczi
2020-01-27 13:14 ` Cornelia Huck
2020-01-24 10:01 ` [PATCH v2 4/4] vhost-user-blk: " Stefan Hajnoczi
2020-01-27 13:17 ` Cornelia Huck [this message]
2020-01-27 9:59 ` [PATCH v2 0/4] virtio-pci: enable blk and scsi multi-queue by default Stefano Garzarella
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