Re: irq balancing: performance disaster

Zwane Mwaikambo (zwane@linuxpower.ca)
Sat, 10 May 2003 17:42:14 -0400 (EDT)


On Sun, 11 May 2003, Jos Hulzink wrote:

> While tackling bug 699, it became clear to me that irq balancing is the cause
> of the performance problems I, and all people using the SMP kernel Mandrake
> 9.1 ships, are dealing with. I got the problems with 2.5.69 too. After
> disabling irq balancing, the system is remarkably faster, and much more
> responsive.

Alan fixed this in his tree a little while back, Mandrake didn't manage to
squeeze that fix in. The 2.5 and 2.4 situation is different however, for
2.5 it's intentional, for 2.4 something broke.

Zwane

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