"Miquel van Smoorenburg" <[EMAIL PROTECTED]> wrote: > > I just upgrades one of our newsservers from 2.6.9 to 2.6.11. I > use "iostat -k -x 2" to see live how busy the disks are. But > I don't believe that Linux optimizes things so much that a disk > can be 1849.55% busy :) > > (you'll have to stretch out your xterm to be able to read this): > > Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s > avgrq-sz avgqu-sz await svctm %util > hda 0.00 50.00 0.00 18.18 0.00 545.45 0.00 272.73 > 30.00 2.35 129.00 86.25 156.82 > hdc 0.00 45.45 77.27 31.82 3927.27 618.18 1963.64 309.09 > 41.67 6.27 57.42 38.42 419.09 > hdd 4.55 0.00 63.64 0.00 68.18 0.00 34.09 0.00 > 1.07 1.11 17.43 17.43 110.91 > hde 477.27 0.00 45.45 0.00 522.73 0.00 261.36 0.00 > 11.50 0.40 8.90 8.90 40.45 > hdg 18.18 70154.55 22.73 172.73 40.91 70727.27 20.45 35363.64 > 362.07 1010.36 1127.72 94.63 1849.55 > > With 2.6.9, %util never came above 100% (and that was indeed "fully loaded". > I have systems with a comparable load running 2.6.10 and 2.6.11-rc3-bk4 > that also don't show this behaviour (but those are SCSI, not IDE). > > I use CFQ, but changing that to deadline doesn't make a difference. >
Mike, did you ever get to the bottom of this? Still happening in 2.6.12-rc1? - 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/
