On Fri, Jul 08 2005, Ingo Molnar wrote: > > * Jens Axboe <[EMAIL PROTECTED]> wrote: > > > But! I used hdparm -t solely, 2.6 was always ~5% faster than 2.4. But > > using -Tt slowed down the hd speed by about 30%. So it looks like some > > scheduler interaction, perhaps the memory timing loops gets it marked > > as batch or something? > > to check whether that could be the case, could you try: > > nice -n -20 hdparm -t /dev/hdc > > does that produce different results?
Same result, see my next mail, it turned out to be a read-ahead bug. -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
