2015-03-29 20:32:35 +01:00
|
|
|
---
|
|
|
|
|
title: Optimizing Linux
|
|
|
|
|
layout: default
|
|
|
|
|
created: 2008-08-05 16:45:57 +0200
|
|
|
|
|
updated: 2008-08-23 18:48:33 +0200
|
|
|
|
|
toc: false
|
|
|
|
|
tags:
|
|
|
|
|
- know-how
|
|
|
|
|
- software
|
|
|
|
|
- linux
|
|
|
|
|
---
|
|
|
|
|
At [Ubuntu Unleashed](http://www.ubuntu-unleashed.com/2008/04/tweak-and-optimize-ubuntu-linux-boot.html) you can find a
|
|
|
|
|
document about different settings to optimize startup times of the system and applications itself.
|
|
|
|
|
|
2015-03-29 21:05:46 +01:00
|
|
|
The `noatime` and `nodiratime` settings are unneccessary in Hardy as the default option `relatime` only updates the
|
2015-03-29 20:32:35 +01:00
|
|
|
*access time* if the file has been modified after the last access timestamp.
|
|
|
|
|
|
|
|
|
|
You can enable the full power of the [upstart](https://launchpad.net/upstart) manager by enabling multi-threading.
|
2015-03-29 21:05:46 +01:00
|
|
|
In `/etc/init.d/rc` at line 24, set `CONCURRENCY=shell`. But beware of slight problems upon booting. Some services might
|
2015-03-29 20:32:35 +01:00
|
|
|
be started before depending services are. Also some lines upon startup are printed twice. If you have problems
|
2015-03-29 21:05:46 +01:00
|
|
|
getting your machine up and running, change it back to `none`.
|
2015-03-29 20:32:35 +01:00
|
|
|
|
2015-03-29 21:05:46 +01:00
|
|
|
Another nice feature is adding the `profile` option to the kernel line upon boot. The bootup will take longer than
|
2015-03-29 20:32:35 +01:00
|
|
|
usual but the readahead-daemon will catalog all needed files and on the next boot (without that parameter), all needed
|
|
|
|
|
files will be preloaded before boot.
|
|
|
|
|
|
2015-03-29 21:12:40 +01:00
|
|
|
On Desktops with much RAM, the [preload](http://sf.net/projects/preload) daemon also speeds up working.
|
