[Bug 821610] Re: ionice doesn't nice the complete writing process

[Phillip Susi]

** Package changed: util-linux (Ubuntu) => linux (Ubuntu)

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to util-linux in Ubuntu.
https://bugs.launchpad.net/bugs/821610

Title:
  ionice doesn't nice the complete writing process

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/821610/+subscriptions