Re: Can context switches be faster?

James Courtier-Dutton
2006-10-13T11:06:01Z

Arjan van de Ven wrote:
> On Thu, 2006-10-12 at 14:25 -0400, John Richard Moser wrote:
>
>
>> - Does the current code act on these behaviors, or just flush all
>> cache regardless?
>
> the cache flushing is a per architecture property. On x86, the cache
> flushing isn't needed; but a TLB flush is. Depending on your hardware
> that can be expensive as well.
>

So, that is needed for a full process context switch to another process.
Is the context switch between threads quicker as it should not need to
flush the TLB?

James