Christoph Hellwig <hch@xxxxxx> 于2020年3月31日周二 下午11:52写道： > > On Tue, Mar 31, 2020 at 11:51:39AM -0400, Tejun Heo wrote: > > Hello, > > > > On Tue, Mar 31, 2020 at 11:47:41PM +0800, Weiping Zhang wrote: > > > Do you means drop the "io.wrr" or "blkio.wrr" in cgroup, and use a > > > dedicated interface > > > like /dev/xxx or /proc/xxx? > > > > Yes, something along that line. Given that it's nvme specific, it'd be best if > > the interface reflects that too - e.g. through a file under > > /sys/block/nvme*/device/. Jens, Christoph, what do you guys think? > > I'm pretty sure I voiced my opinion before - I think the NVMe WRR > queueing concept is completely broken and I do not thing we should > support it at all. Hi Christoph, Would you like to share more detail about why NVMe WRR is broken?
