On Thu, Nov 24, 2016 at 11:23 AM, Jaehoon Chung <jh80.chung@xxxxxxxxxxx> wrote: > Anyway, until today, i have checked the I/O performance with Exynos3/4/5 boards which i have. > It seems that there is no I/O performance benefit about packed command at this time. Hm so is that with a separate tree where the packed command is enabled and with an eMMC 4.5 that has packed command support? If you put a print in some packed command code, can you see it getting executed? I think we may want packed command support but we need to fix it on top of blk-mq as well as we need to fix command queueing. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
