kernel-packages team mailing list archive

[Sworddragon <821610@xxxxxxxxxxxxxxxxxx>]

** Attachment added: "Testcase"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/821610/+attachment/3896005/+files/test.py

** Changed in: linux (Ubuntu)
       Status: Incomplete => New

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

Title:
  ionice doesn't nice the complete writing process

Status in “linux” package in Ubuntu:
  Incomplete

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