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[Bug 1420544] Missing required logs.

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Brad Figg <brad.figg@xxxxxxxxxxxxx>
Date: Thu, 26 Mar 2015 15:30:07 -0000
Reply-to: Bug 1420544 <1420544@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1420544

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

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

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https://bugs.launchpad.net/bugs/1420544

Title:
  [SRU] Ubuntu instances on GCE should use NOOP scheduler

Status in linux package in Ubuntu:
  Incomplete
Status in systemd package in Ubuntu:
  Won't Fix
Status in systemd source package in Trusty:
  Fix Committed

Bug description:
  [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.

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