Re: [PATCH] block: BFQ default for single queue devices

[Bart Van Assche]

On Wed, 2018-10-03 at 05:51 -0700, Christoph Hellwig wrote:
+AD4 On Wed, Oct 03, 2018 at 07:42:15AM +-0000, Damien Le Moal wrote:
+AD4 +AD4 Of note also is that host-managed like sequential zone devices are also likely
+AD4 +AD4 to show up soon with the work being done in the NVMe standard on the new +ACI-Zoned
+AD4 +AD4 namespace+ACI feature proposal. These devices will also require a scheduler like
+AD4 +AD4 mq-deadline guaranteeing per-zone in-order delivery of sequential write
+AD4 +AD4 requests. Looking only at the number of queues of the device is not enough to
+AD4 +AD4 choose the best (most reasonnable/appropriate) scheduler.
+AD4 
+AD4 We actually have a plan to avoid the need for a non-reordering scheduler
+AD4 there (including a Linux prototype for it).  Lets see if it survives the
+AD4 committee.

Has the work with the T10 committee to standardize the SCSI equivalent of anonymous
writes already started?

Thanks,

Bart.