Re: [SCHED] wrong priority calc - SIMPLE test case

From: Mike Galbraith
Date: Mon Jan 09 2006 - 13:13:05 EST


At 03:08 AM 1/10/2006 +1100, Con Kolivas wrote:
On Tuesday 10 January 2006 02:52, Mike Galbraith wrote:
>
> Anyway, if anyone wants to see a functional demonstration, just try
> this. Remove the TASK_NONINTERACTIVE in fs/pipe.c in both the stock kernel
> and this modified one so Davide Libenzi's excellent sleep pattern exploit
> (irman2) can work [1], and do the below all at the same time ...
>
> make -j4 bzImage
> irman2
> thud 3
>...


Want to try with a few other schedulers using plugsched?

Not really. These exploits were specifically aimed at the current scheduler's Achilles Heel. Besides, that carries implications of replacing this one, and I'm pretty fond of it.

-Mike

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