[Bug 977461] Re: Dealing apt-get tasks is really slow under btrfs

[Julian Andres Klode]

I'm assuming that you're talking about the usual problem with btrfs that
package installations/removals/etc take a long time. This is caused by
dpkg synchronising the file system after a file was written. This turns
out to be very slow on btrfs, but needed for reliability. You can work
around the problem using the eatmydata package, but this is not really
recommended.

** Changed in: apt (Ubuntu)
       Status: New => Invalid

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to apt in Ubuntu.
https://bugs.launchpad.net/bugs/977461

Title:
  Dealing apt-get tasks is really slow under btrfs

Status in “apt” package in Ubuntu:
  Invalid

Bug description:
  Dealing apt-get tasks is really slow under btrfs filesystem. It is
  usually about on 500% time of ext4. Tested with stock mount options
  and my custom (compress=lzo autodefrag) - no difference. Tested on
  x86_64 and x86 system too. Tested on two different machines.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: apt-utils 0.8.16~exp12ubuntu7
  ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14
  Uname: Linux 3.2.0-22-generic x86_64
  ApportVersion: 2.0-0ubuntu4
  Architecture: amd64
  Date: Mon Apr  9 20:57:09 2012
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120330)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=cs_CZ.UTF-8
   SHELL=/bin/bash
  SourcePackage: apt
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apt/+bug/977461/+subscriptions