** Description changed: + [IMPACT] By default, the Ubuntu kernel uses deadline. Google has + identified that Cloud Workloads running on Ubuntu perform better using + NOOP as the default scheduler. Google has requested that Google Cloud + Compute (GCE) instances use NOOP as the default. + + [FIX] Add udev rule for GCE devices to use NOOP by default. + + [VALIDATION] + 1. Boot Ubuntu instance on Google GCE + 2. Confirm that the scheduler is deadline: + $ cat /sys/block/sda/queue/scheduler + noop [deadline] cfq + 3. Install proposed udev package + 4. Reboot + 5. Confirm that schedule is now noop + $ cat /sys/block/sda/queue/scheduler + [noop] deadline cfq + + [RISK] This patch will affect currently running instances and on reboot + they should see better performance. However, there is a risk that some + users will experience a performance hit. + + [ORIGINAL REPORT] + Per Google's request, Ubuntu instances should use NOOP as the default scheduler.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1420544 Title: [SRU] Ubuntu instances on GCE should use NOOP scheduler To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1420544/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
