Re: [PATCH] improve rwsem scalability (was Re: [CFT][RFC] HT scheduler)

Martin J. Bligh
2003-12-19T15:06:45Z

>> What do you think? Is there any other sorts of benchmarks I should try?
>> The improvement I think is significant, although volanomark is quite
>> erratic and doesn't show it well.
>>
>> I don't see any problem with moving the wakeups out of the rwsem's
>> spinlock.
>>
>
> Actually my implementation does have a race because list_del_init isn't
> atomic. Shouldn't be difficult to fix if anyone cares about it... otherwise
> I won't bother.

If you can fix it up, I'll get people here to do some more testing on the
patch on other benchmarks, etc.

M.