IOThread Virtqueue Mapping - Improving virtio-blk SMP Scalability in QEMU

Explore a KVM Forum talk on improving virtio-blk SMP scalability in QEMU through IOThread Virtqueue Mapping. Delve into the feature added in QEMU 9.0 that enhances performance by processing queues in multiple threads, addressing the single-threaded bottleneck in multi-vCPU guest environments. Examine benchmark results demonstrating performance improvements, learn about configuration considerations like thread count selection, and gain insights into potential future applications for virtio-scsi and other device types. Access accompanying slides for visual aids and deeper understanding of the topic presented by Stefan Hajnoczi, a seasoned QEMU contributor and member of Red Hat's Virtualization team.

IOThread Virtqueue Mapping: Improving virtio-blk SMP scalability in QEMU by Stefan Hajnoczi