Tim Schmielau wrote: > On Sat, 6 Jan 2007, Stefan Richter wrote: > >> Did anybody else notice this? The result of "hdparm -t" under 2.6.20-rc >> seems to be less than half of what you get on 2.6.19. However, disk I/O >> did *not* get slower according to bonnie++. > > yes. See > http://lkml.org/lkml/2007/1/2/75 > for the solution. > > Tim
Thanks. I should have remembered that. # hdparm -tT /dev/hda /dev/hda: Timing cached reads: 10864 MB in 2.00 seconds = 5440.10 MB/sec Timing buffered disk reads: 58 MB in 3.06 seconds = 18.94 MB/sec # cat /sys/block/hda/queue/scheduler noop anticipatory deadline [cfq] # echo anticipatory > /sys/block/hda/queue/scheduler # hdparm -tT /dev/hda /dev/hda: Timing cached reads: 10680 MB in 2.00 seconds = 5347.20 MB/sec Timing buffered disk reads: 148 MB in 3.02 seconds = 49.03 MB/sec -- Stefan Richter -=====-=-=== ---= --==- http://arcgraph.de/sr/ - 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/