Saturday, May 22, 2010

What I will write about

Optimal number of sleeping servers vs icdf percentile.
added up distribution (how it's different... it's not).

Where will I put this new information. The part of adding up the distribution could go at the end of the paper I was writing. It seems to go well there.

Sleeping servers could can go in its own chapter maybe?

Wednesday, May 19, 2010

What I'm going to do

One thing for sure is use a percentile of a convolved distribution. This is very clear.

Another thing I can do is at least simulate what happens when I have sleeping servers.

I'm not sure if I'm going to be able to run something for real with sleeping servers, as running something will entail live migration, which I'm not going to be able to do.

Monday, May 17, 2010

Power

Suspend takes about 2.67 watts / second.
idle takes about 46 watts.
1 cpu takes 58 watts.
2 cpus take 67
3 cpus take 75
4 cpus take 83 watts

y=9.1x+47.6

Friday, May 14, 2010

Before I forget


  • Utility of Sleep

  • Use 75th percentile of convolved distribution

  • use sample from lower distribution, add up and use that 75th percentile