Re: [PATCH -v9][RFC] mutex: implement adaptive spinning

Linus Torvalds
2009-01-13T16:49:27Z

On Tue, 13 Jan 2009, Peter Zijlstra wrote:
>
> Ok, tested only 1, but that was the one I remember lockups from -- and
> that seems to be good with the cmpxchg.
>
> Do you fancy me sending v10 or will you make that change locally?

I'd like to get this in, but I'm not going to apply it in any case without
way more testing.

It missed the merge window, but I'm potentially willing to let it slip in
- but only if there are a fair number of people willing to do numbers and
some harsh testing. Preferably people who did see problems earlier, ie at
a minimum Chris and Ingo under the loads they used before and saw issues
with.

So do a v10, and ask people to test.

Linus