Re: [PATCH][2.6] Allow x86_64 to reenable interrupts on contention

Zwane Mwaikambo
2004-07-28T01:34:39Z

On Tue, 27 Jul 2004, Andi Kleen wrote:

> > the reduced interrupt latency, the code size issue can also be taken care
> > of, but that requires benchmarking as the change is a bit more drastic.
>
> Do you have numbers on that? Frankly if someone is spinning on irq disabled
> locks for a long time they should just fix their code.

It wasn't i who saw the contention but something Keith ran into, the
contention probably wasn't bad enough to require serious locking changes.