On Tue, Dec 26, 2023 at 5:05 PM Michael S. Tsirkin <mst@xxxxxxxxxx> wrote: > > On Tue, Dec 26, 2023 at 05:01:40PM +0800, Li Feng wrote: > > Hi MST and paolo, > > > > mq-deadline is good for slow media, and none is good for high-speed media. > > It depends on how the community views this issue. When virtio-blk adopts > > multi-queue,it automatically changes from deadline to none, which is not > > uniform here. > > It's not virtio-blk changing though, it's linux doing that, right? > Is virtio-blk special somehow? > Yes, it’s the common code path. Each block driver has a chance to set the default none scheduler, like loop, it has set the none as the default scheduler. https://lkml.kernel.org/stable/20230809103647.895397540@xxxxxxxxxxxxxxxxxxx/ > > I don't have ideas right now to answer Christoph/Paolo's question. > > > > Thanks, > > Li > > -- > MST >
