[ANNOUNCE] DeskOpt - on fly task, i/o scheduler optimization

[Michal Piotrowski]

Hi,

Here is something that might be useful for gamers and audio/video editors
http://www.stardust.webpages.pl/files/tools/deskopt/

You can easily tune CFS/CFQ scheduler params

sched_batch_wakeup_granularity_ns
sched_latency_ns
sched_min_granularity_ns
sched_runtime_limit_ns
sched_stat_granularity_ns
sched_wakeup_granularity_ns

back_seek_max
back_seek_penalty
fifo_expire_async
fifo_expire_sync
quantum
slice_async
slice_async_rq
slice_idle
slice_sync

+ nice levels

Results from Nexuiz benchmark

|-------------------------------------------------------------------------------------------|
|	                                      |    CFS + CFQ 	  |   CFS + CFQ + DeskOpt * |
|-------------------------------------------------------------------------------------------|
| timedemo demos/demo2                        |	41,395896833 fps  |   41,460051233 fps      |
| timedemo demos/demo2 + massive_intr 4 1000  |	18,343223633 fps  |   37,814504933 fps      |
| timedemo demos/demo2 + massive_intr 8 1000  |	9,334974533 fps   |   37,376611267 fps      |
|-------------------------------------------------------------------------------------------|

* default class for games

DeskOpt has many design flaws, but it works for me :)

Regards,
Michal

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