On Thu, 2017-04-27 at 15:16 -0400, Mike Snitzer wrote: > This call toblk_mq_delay_run_hw_queue(), while unconvincing and suspect, > is being introduced via block core during the 4.12 merge. > > But in general, this tweaking of the timeouts in such a short period > speaks to indecision and leaves me unconvinced of what the _best_ values > to use are. > > Let's revisit this after the merge window closes, we can tweak the 100ms > up to 500ms in both locations if you _really_ prefer that. Hello Mike, The 100ms was a copy/paste from the SCSI initiator code. Later I realized that that is too fast in the dm core, e.g. when the underlying paths are busy due to SCSI error handling. Bart. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
