On Tue, Nov 01, 2016 at 03:05:22PM -0600, Jens Axboe wrote: > For legacy block, we simply track them in the request queue. For > blk-mq, we track them on a per-sw queue basis, which we can then > sum up through the hardware queues and finally to a per device > state. > > The stats are tracked in, roughly, 0.1s interval windows. > > Add sysfs files to display the stats. > > Signed-off-by: Jens Axboe <axboe@xxxxxx> > --- [...] > > /* incremented at completion time */ > unsigned long ____cacheline_aligned_in_smp rq_completed[2]; > + struct blk_rq_stat stat[2]; Can you add an enum or define for the directions? Just 0 and 1 aren't very intuitive. Johannes -- Johannes Thumshirn Storage jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850 -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
