Re: as vs cfq vs deadline

[Kevin Puetz <puetzk@iastate.edu>]

Paolo Ciarrocchi wrote:

> Hi all,
> I've run a 'let's check if it does not skip frames test'.
> kernel is 2.5.62-mm2.
> 
> ** How I performed the test **
> startx
> I've opened to xterminal
> 
> terminal1
> [test@frodo test]$ glxgears
> 
> terminal2
> ./dbench 16
> 
> Following the results:
> 

<snip>

> I can not see any difference in the results above.
> 
> I guess the test I've run it is not a good test, isn't it ?

a) you're only looking at glxgears average framerate, so you've not measured
whether it drops frames at all, and 
b) glxgears does no disk i/o at all, so it shouldn't care a bit what the I/O
scheduelr is doing (other than how much cpu the kernel is using, which
shouldn't be all that high)

> Comments/suggesiontions ?
> 
> Ciao,
> Paolo
>