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SubjectRe: high system cpu load during intense disk i/o
> Hello again,
Hi!
> was my report so complicated? Perhaps I shouldn't have included so many
> oprofile outputs. Anyway, if anyone wants to have a look, the most important
> is two_discs_bad.txt oprofile output, attached on my original message. The
> problem is 100% reproducible for me so I would appreciate if anyone told me
> he has similar experiences.
Probably nobody replied to Your message because people at this list think
that Your problem isn't kernel related. In this moment I'm using "Arch Linux"
too, so I checked /etc/cron directory. There simple jobs You are talking
about are not so simple:
- update the "locate" database,
- update the "whatis" database.
Both jobs are scaning "/" partition. I don't know how dcron works, but I can
imagine situation in which it is polling cron.daily and says: "hey it wasn't
done today yet" and it is starting same jobs over and over again. More
and more tasks scans the "/" partition and in result access is slower and
slower.
> Thanks,
> Dimitris
Let me know if I'm wrong
Rafał


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