Re: [Patch V3 0/3] Enable irqs when waiting for rwlocks

Peter Zijlstra
2008-12-03T12:25:29Z

On Wed, 2008-12-03 at 05:37 -0600, Robin Holt wrote:
> > It's a bit regrettable to have different architectures behaving in
> > different ways. It would be interesting to toss an x86_64
> > implementation into the grinder, see if it causes any problems, see if
> > it produces any tangible benefits. Then other architectures might
> > follow. Or not, depending on the results ;)
>
> I personally expect SGI to work on this for x86_64 in the future.
> Once we actually start testing systems with 128 and above cpus, I
> would expect to see these performance issues needing to be addressed.
> Until then, it is just a theoretical.

Personally I consider this a ugly hack and would love to see people
solve the actual problem and move away from rwlock_t, its utter rubbish.