Hum. I have noatime enabled, and as I mentioned in my (now disappeared)
comment on bug 59695, this did not make a difference for me.
Here is my lm-profiler output:
Profiling run started.
Write accesses at 72/600 in lm-profiler run: kpdf
Write accesses at 348/600 in lm-profiler run: kpdf
Read accesses at 599/600 in lm-profiler run: kblankscrn.kss kdesktop_lock
Profiling run completed.
According to this run, the only possible culprit is kpdf. I shut it
down, but within 5 minutes, I saw the HDD LED flash several times, and
the load cycle count went up by 9. So, whatever is still accessing the
disk does not show up in lm-profiler, and is not due to atimes.
Any ideas where I could try to look next?
FWIW, here are my mounted filesystems:
/dev/sda5 on / type ext3 (rw,noatime,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
/sys on /sys type sysfs (rw,noexec,nosuid,nodev)
varrun on /var/run type tmpfs (rw,noexec,nosuid,nodev,mode=0755)
varlock on /var/lock type tmpfs (rw,noexec,nosuid,nodev,mode=1777)
udev on /dev type tmpfs (rw,mode=0755)
devshm on /dev/shm type tmpfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
lrm on /lib/modules/2.6.22-14-generic/volatile type tmpfs (rw)
/dev/sda8 on /home type xfs (rw,noatime)
/dev/sda2 on /media/sda2 type fuseblk
(ro,nosuid,nodev,noatime,allow_other,default_permissions,blksize=4096)
/dev/sda7 on /var type xfs (rw,noatime)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc
(rw,noexec,nosuid,nodev)
Swap is enabled, but not in use:
total used free shared buffers cached
Mem: 2063376 1041632 1021744 0 105256 452812
-/+ buffers/cache: 483564 1579812
Swap: 3906368 0 3906368
--
Hard drive spindown should be configurable
https://bugs.launchpad.net/bugs/17216
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