Re: [PATCH] local_irq_disable removal

Daniel Walker
2005-06-12T15:28:51Z

On Sun, 12 Jun 2005, Ingo Molnar wrote:

> x86 is actually a 'worst-case', because it has one of the cheapest CPU
> level cli/sti implementations. Usually it's the hard-local_irq_disable()
> overhead on non-x86 platforms that is a problem. (ARM iirc) So in this
> sense the soft-flag should be a win on most sane architectures.

My original port of this was on ARM , and I didn't notice a massive slow
down, or anything . I imagine it can't be unbearable.

Daniel