On Fri, Oct 24, 2014 at 11:54 AM, Alexandre DERUMIER <aderumier@xxxxxxxxx> wrote: > Hi, > > I would like to known if it's planned to add blk-mq (block multiqueue from kernel 3.17) support to krbd ? > > I think it could help single threaded workload (including qemu) to reach more iops. > > I find some small discussion about it here: > http://permalink.gmane.org/gmane.comp.file-systems.ceph.devel/20584 > > But no news since then. There are no concrete plans as of now. For 3.19 and 3.20 the main goal is to get fancy striping (support for custom striping modes) in and then get rid of "kernel layering is EXPERIMENTAL!" warning. krbd is a network block device, so I don't think we will gain anything significant in the performance department. blk-mq was mentioned because it lifts some of the implementation restrictions the current infrastructure imposes on drivers. Thanks, Ilya -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
