Hello, Nikolay. On Tue, Dec 12, 2017 at 01:17:52PM +0200, Nikolay Borisov wrote: > On 9.12.2017 21:25, Tejun Heo wrote: > > After the recent updates to use generation number and state based > > synchronization, we can easily replace REQ_ATOM_STARTED usages by > > adding an extra state to distinguish completed but not yet freed > > state. > > > > Add MQ_RQ_COMPLETE and replace REQ_ATOM_STARTED usages with > > blk_mq_rq_state() tests. REQ_ATOM_STARTED no longer has any users > > left and is removed. > > Where are the promised in patch 5/6 performance results?
Opos, I thought I removed all of those. I couldn't reliably show that this performed better. I was testing with nullblk but the run-to-run deviations were too great (they generally kept getting faster, maybe better locality?) to draw a reliable conclusion. Whatever difference in performance is unlikely to be material in actual workloads anyway. I dropped the sentence from the description. Thanks. -- tejun
