I/O scheduler (aka dsched)

[Petr Janda]

> Any testing is welcome! I would have expected some more interest (and hence
> more testers) as this addresses an issue that many people have experienced,
> yet only two or three people have bothered trying it out so far.
> 

Hi Alex,

Thanks for dsched. So far it seems work well. Havent got a panic. It feels 
maybe slightly more responsive using fq, than noop. I dont know, i havent 
really "stress tested" it. One thing that I did notice though is that setting 
scheduler_*="fq" doesnt work, but scheduler_da0="fq" does.

Petr