On Tue, Apr 07, 2015 at 11:18:38AM -0600, Jens Axboe wrote: > Instead of storing the IO tracker structure in a separate list > that we need to pop/push to on every submit and complete (and > lock), store it in the pdu associated with a request. This is > possible on scsi-mq only, and further cuts the spinlock associated > time for higher IOPS IO workloads. At 100K IOPS, this effectively > cuts the locking time in half. As mentioned before please call scsi_init_shared_tag_map and use your new code path for the !mq case as well. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
