Saturday, 21 March 2009

Improving on bootchart

From the the bootcharts I posted in my previous post, it is obvious that sleep times could be eliminated to bet better boot up performance. So I thought of looking at boot messages to find processes that I could do away with or at least do something about. During boot-up, the boot process was looking for ethernet connection, i.e. it was trying to bring up net.eth0. As internet wasn't always connected, it was waiting longer when started with no connection. So I created an offline runlevel and added a new entry in /boot/grub/menu.lst. The procedure is described well in the Gentoo handbook. Here is what I got: a reduction of about 30 seconds in boot-up time.

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