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28 lines
1.4 KiB
Markdown
28 lines
1.4 KiB
Markdown
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---
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title: Optimizing Linux
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layout: default
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created: 2008-08-05 16:45:57 +0200
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updated: 2008-08-23 18:48:33 +0200
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toc: false
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tags:
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- know-how
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- software
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- linux
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---
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At [Ubuntu Unleashed](http://www.ubuntu-unleashed.com/2008/04/tweak-and-optimize-ubuntu-linux-boot.html) you can find a
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document about different settings to optimize startup times of the system and applications itself.
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The ˋnoatimeˋ and ˋnodiratimeˋ settings are unneccessary in Hardy as the default option ˋrelatimeˋ only updates the
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*access time* if the file has been modified after the last access timestamp.
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You can enable the full power of the [upstart](https://launchpad.net/upstart) manager by enabling multi-threading.
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In ˋ/etc/init.d/rcˋ at line 24, set ˋCONCURRENCY=shellˋ. But beware of slight problems upon booting. Some services might
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be started before depending services are. Also some lines upon startup are printed twice. If you have problems
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getting your machine up and running, change it back to ˋnoneˋ.
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Another nice feature is adding the ˋprofileˋ option to the kernel line upon boot. The bootup will take longer than
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usual but the readahead-daemon will catalog all needed files and on the next boot (without that parameter), all needed
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files will be preloaded before boot.
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On Desktops with much RAM, the ˋ[preload](http://sf.net/projects/preload)ˋ daemon also speeds up working.
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