Re: [patch] voluntary-preempt-2.6.8-rc2-M5

Lee Revell
2004-07-31T00:34:41Z

On Fri, 2004-07-30 at 18:54, Lee Revell wrote:

> Here are my results with 2.6.8-rc2-mm1-M5.
>
> max usecs
> All IRQs threaded 349
> Soundcard IRQ not threaded 227
> Soundcard IRQ not threaded + max_sectors_kb -> 64 119
>
> I will test next with 2.6.8-rc2-M5.
>

Results with 2.6.8-rc2-M5:

Configuration max usecs
-----------------------------------------------------------------
All IRQs threaded 370
Soundcard IRQ not threaded 335
Soundcard IRQ not threaded + max_sectors_kb -> 64 161

So, it looks like the added configurability does add some overhead - 161
usecs vs. 50. mm1 is significantly better than the stock kernel. The
above results imply that 2.6.8-rc2-mm1 with the irq.c hack would be
frighteningly good.

Lee