Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS]

From: Ingo Molnar
Date: Tue Apr 17 2007 - 05:36:46 EST



* Peter Williams <pwil3058@xxxxxxxxxxxxxx> wrote:

> There's a lot of ugly code in the load balancer that is only there to
> overcome the side effects of SMT and dual core. A lot of it was put
> there by Intel employees trying to make load balancing more friendly
> to their systems. What I'm suggesting is that an N CPUs per runqueue
> is a better way of achieving that end. I may (of course) be wrong but
> I think that the idea deserves more consideration than you're willing
> to give it.

i actually implemented that some time ago and i'm afraid it was ugly as
hell and pretty fragile. Load-balancing gets simpler, but task picking
gets alot uglier.

Ingo
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