André Tomt wrote: {
>>>>On 7/4/05, Al Boldi <[EMAIL PROTECTED]> wrote:
>>>>Hdparm -tT gives 38mb/s in 2.4.31
>>>>Cat /dev/hda > /dev/null gives 2% user 33% sys 65% idle
>>>>
>>>>Hdparm -tT gives 28mb/s in 2.6.12
>>>>Cat /dev/hda > /dev/null gives 2% user 25% sys 0% idle 73% IOWAITThe "hdparm doesn't get as high scores as in 2.4" is a old discussed to death "problem" on LKML. So far nobody has been able to show it affects anything but that pretty useless quasi-benchmark. >>>No errors though, only sluggish system. Really sluggish or just "benchmark-sluggish"? If the former, try selecting a different IO elevator/sheduler. > When you compare 2.4.31 with 2.6.12 don't you see this problem on your > machine? > If you have a fast system the slowdown won't show, but your IOWAIT > will be higher anyway! Nothing wrong with 73% iowait Beware 2.4 didn't export that statistic at all to userspace, so 0% iowait gets reported from most 2.6-ready reporting tools on 2.4. } 1. hdparm only gives you an indicator. 2. Really sluggish, as in unresponsive to commands. 3. Tried all IO elevators/shedulers to no avail. 4. In 2.4 IOWAIT is added to sys, as in 8% IOWAIT. - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
