Bootchart on a very slow computer (for people involved in boottime optimisation)

Lionel Dricot (aka Ploum) zeploum at gmail.com
Sat Jan 28 13:09:30 GMT 2006


Hello,

I just tought that a bootchart from a boot on a very very slow computer
might be useful for people working on boot performance. Indeed, because of
the slowness, all actions performed are bigger on the chart. It's like a
magnifying glass ;-)

The computer is a old laptop Presario 1245 with a vert very slow hard disk
(don't know if it's a hdparm bug, it seems just that the disk is "prefail"),
96Mo of Ram and K6-300 processor :

https://wiki.ubuntu.com/LaptopTestingTeam/CompaqPresario1245?highlight=%28presario%29
http://wiki.frimouvy.org/CompaqPresario
http://hwdb.ubuntu.com/?xml=0bdf68fa07902b4b115a1b54ce8533b5

So I just dist-upgraded this laptop from breezy to dapper (4 to 5 hours of
apt-get processing)

The boot is quite long and it tooks nearly 15minute of processing to
generate the svg and the png of bootchart !!

http://ploum.fritalk.com/dapper-20060128-1.png (400ko)

I hope this kind of chart may help.

If you want more charts from more computer, please let me know what you want
exactly. I will follow the call to the french speaking community, I will
triage the feedback and give a result as useful as possible.

Cheers,

Ploum
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