Christian Vogler wrote:
> 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.

lm-profiler is useless if you look at the disk light / load cycles. It 
does a lot of its own stuff with the disk, so the disk activity you're 
seeing is most probably caused by lm-profiler itself. (It filters out 
this activity in the results, so you won't see it.) Simply put: 
lm-profiler is good for finding programs that do disk activity, but 
while you're using it you can't expect the disk to spin down.

-- 
Hard drive spindown should be configurable
https://bugs.launchpad.net/bugs/17216
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