On Mon, 2018-10-15 at 16:10 +-0200, Linus Walleij wrote: +AD4 +- +ACo For blk-mq devices, we default to using: +AD4 +- +ACo - +ACI-none+ACI for multiqueue devices (nr+AF8-hw+AF8-queues +ACEAPQ 1) +AD4 +- +ACo - +ACI-bfq+ACI, if available, for single queue devices +AD4 +- +ACo - +ACI-mq-deadline+ACI if +ACI-bfq+ACI is not available for single queue devices +AD4 +- +ACo - +ACI-none+ACI for single queue devices as well as last resort For SATA SSDs nr+AF8-hw+AF8-queues +AD0APQ 1 so this patch will also affect these SSDs. Since this patch is an attempt to improve performance, I'd like to see measurement data for one or more recent SATA SSDs before a decision is taken about what to do with this patch. Thanks, Bart.
