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I'm using Ubuntu 11.10 dev. I'm starting apache with the command "chrt
-i 0 ionice -c 3 /usr/sbin/apache2ctl". On my system is full data
journaling enabled. Theoretically if apache or a child process from
apache is writing something to the disk it shouldn't affect any other
applications like games because apache has the lowest cpu and I/O
priority possible. But sometimes a child process from apache is writing
a lot to my disk and I can't do much at this time anymore. If I play a
game it is freezing every second and unplayable. If I disable full data
journaling it is much better. This is why I think the [jdb2/sda1-8]
process doesn't inherit the nice/ionice from the writing process.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
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ionice doesn't nice the complete writing process
https://bugs.launchpad.net/bugs/821610
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