The virtio-blk device has supported multi-queue for quite a while. It is used to improve performance during heavy I/O, by processing the queues in parallel. However, beforeQEMU 9.0, all the virtqueues were processed by a single IOThread or the main loop. This single thread can be a CPU...
The kernel crashed upon blocked task detection where many tasks stuck in I/O wait on a virtio_blk device. Raw RELEASE: 2.6.32-754.35.1.el6.x86_64 PANIC: "Kernel panic - not syncing: hung_task: blocked tasks" INFO: task jbd2/dm-1-8:494 blocked for more than 120 seconds. Not taint...
关于HTTP/3我就不介绍了，网上有，多说无益。真的。 就目前浏览器支持情况真的也就一般。