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Revision as of 14:32, 20 June 2008 by Stardust (talk | contribs) (question (tip how to speed it up))

30 Second Startup


Make Fedora boot and shut down faster. The goal is to be at the login screen in 30 seconds and be as fast as possible after the login (gnome-session).


  • Name: HaraldHoyer
  • Name: MatthiasClasen

Current status

  • Targeted release: Fedora 10
  • Last updated: 2008-04-14
  • Percentage of completion: 0%

Detailed Description

Earlier attempts at this can be found here Releases/FeatureBootShutdownSpeedup and here Releases/FeatureBetterStartup (different, but related).

With the switch to upstart we have a lot of necessary pieces in place now to cut down on initscript bloat and use dependencies to parallelize the boot.

Harald recently started some investigations into where the boot time goes, see here , here and here .

Some earlier comments on the problems related to device enumeration are discussed here

Harald has also compared bootcharts of several distributions .

Bugzilla Tracker for slow boot components

Improvements with a modified readahead setup possible.

Benefit to Fedora

A faster boot makes for happy users.


Possibly involves all packages that are involved in the boot sequence, udev, module-init-tools, kernel, nash, upstart, readahead.

Test Plan

  • install bootchart
  • modify /sbin/bootchartd to exit on "firefox" not "gdm kdm" etc. and sleep 10-20 seconds after that
  • reboot, login, start firefox, close firefox
  • measure time until closing of firefox

User Experience

Turn on computer, wait 30 seconds, select user on login screen.


Contingency Plan

This is an incremental feature. If we don't quite get down to 30 seconds, too bad, we can just take whatever improvements we have. If it turns out that readahead cannot be fixed to consistently improve boot speed, we will simply not reenable it.


Should not be needed.

Release Notes

Should not be needed.


  • Do you consider changing the order of services, thus the GDM login window starts before other services? It would be a great speed-up for all desktop users (server users don't run runlevel 5 by default so much I think..)