Sokolov Yura <funny.falcon@postgrespro.ru> writes:
> On 2017-09-06 15:56, Tom Lane wrote:
>> The point I'm trying to make is that if tweaking generic.h improves
>> performance then it's an indicator of missed cases in the less-generic
>> atomics code, and the latter is where our attention should be focused.
>> I think basically all of the improvement Sokolov got was from upgrading
>> the coverage of generic-gcc.h.
> Not exactly. I've checked, that new version of generic
> pg_atomic_fetch_or_u32
> loop also gives improvement.
But once you put in the generic-gcc version, that's not reached anymore.
regards, tom lane