On Mon, Dec 04, 2023 at 05:16:16PM -0600, Mike Christie wrote: > The following patches allow users to configure the vhost worker threads > for vhost-scsi. With vhost-net we get a worker thread per rx/tx virtqueue > pair, but for vhost-scsi we get one worker for all workqueues. This > becomes a bottlneck after 2 queues are used. > > In the upstream linux kernel commit: > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/vhost/vhost.c?id=c1ecd8e9500797748ae4f79657971955d452d69d > > we enabled the vhost layer to be able to create a worker thread and > attach it to a virtqueue. > > This patchset adds support to vhost-scsi to use these ioctls so we are > no longer limited to the single worker. > > v3: > - Warn user if they have set worker_per_virtqueue=true but the kernel > doesn't support it. > v2: > - Make config option a bool instead of an int. > >
Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
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