I tried using an fstab option to make ext4 sync its journal data less often, but found that Ubuntu's power management scripts were overriding my change. After a bit of reading and poking around, I created /etc/pm/config.d/10_journal_commit_time containing this line:
JOURNAL_COMMIT_TIME_AC=30 This sets the journal sync interval to 30 seconds when on AC power, which I feel is safe on my system because I'm using a UPS. After I made this change, stopped my kernel from updating atime on every file access, and rebooted, disk activity settled down to a tolerable rate. It's now more like what I expected based on the applications I use. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/607560 Title: jbd2 writing block every 5 - 10 seconds, preventing disk spin-down and making noise To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/607560/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
