mirror of
https://github.com/Motorhead1991/qemu.git
synced 2026-03-04 09:04:39 -07:00
6a55882284
Automatically size the number of virtio-scsi-pci, vhost-scsi-pci, and vhost-user-scsi-pci request virtqueues to match the number of vCPUs. Other transports continue to default to 1 request virtqueue. A 1:1 virtqueue:vCPU mapping 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. The maximum number of MSI-X vectors and virtqueues limit are respected. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200818143348.310613-6-stefanha@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
||
|---|---|---|
| .. | ||
| vhost-backend.h | ||
| vhost-scsi-common.h | ||
| vhost-scsi.h | ||
| vhost-user-blk.h | ||
| vhost-user-fs.h | ||
| vhost-user-scsi.h | ||
| vhost-user-vsock.h | ||
| vhost-user.h | ||
| vhost-vdpa.h | ||
| vhost-vsock-common.h | ||
| vhost-vsock.h | ||
| vhost.h | ||
| virtio-access.h | ||
| virtio-balloon.h | ||
| virtio-blk.h | ||
| virtio-bus.h | ||
| virtio-crypto.h | ||
| virtio-gpu-bswap.h | ||
| virtio-gpu-pci.h | ||
| virtio-gpu-pixman.h | ||
| virtio-gpu.h | ||
| virtio-input.h | ||
| virtio-iommu.h | ||
| virtio-mem.h | ||
| virtio-mmio.h | ||
| virtio-net.h | ||
| virtio-pmem.h | ||
| virtio-rng.h | ||
| virtio-scsi.h | ||
| virtio-serial.h | ||
| virtio.h | ||