long resume bugs in Lucid (thoughts?).

Manoj Iyer manoj.iyer at canonical.com
Wed Feb 10 01:25:08 UTC 2010


apw,

I did some data-mining on the bugs that report resume takes a long time, ie 
in the order of seconds. There are 150 such bugs which I believe spans 
karmic+lucid. The long resume bug#s and their resume time can be found on

http://people.canonical.com/~manjo/sr/longresume.html

The average of the long resume time is 18.141 seconds. The resume times 
that are reported is the total resume time. In my patch I am printing 
resume time per driver:device which is in the order of milli seconds in 
most cases, and I print as I resume, so I wont be able to know the total 
resume time until I fully resume. I don't think I found what I was looking 
for triaging these bugs, as a result. If you look at my sample output most 
devices resume in 0.001ms (on dell Mini10V), and resume took 3.880 seconds 
total.

http://people.canonical.com/~manjo/sr/dmesg.sr.example

I estimate that I should print any device that takes more than 100.00 msec 
to resume. This will eliminate a lot of noise from dmesg.

thoughts ?

Cheers
--- manjo




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