Justifying sched_yield() in the RTS

[Ben Gamari]

Ben Gamari <ben at smart-cactus.org> writes:

> Travis Whitaker <pi.boy.travis at gmail.com> writes:
>
>> Hello GHC devs,
>>
>> Through the course of reading some recent material posted by Linus
>> Torvalds ^1 ^2, I remembered stumbling upon GHC Trac #3553 ^3 some
>> years ago.
>>
> For what it's worth Simon Marlow and I discussed this a few weeks ago
> and he agreed that it would be worth re-running the futex experiments.

Whoops. The above should have read "mutex" experiments. Of course,
perhaps direct futex usage is also worth evaluating but simpler
is better if there is no performance trade-off.

Cheerss,

- Ben
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