Ashkil Dighin <ashkildighin76@gmail.com> writes:
> I suspect lock contention and performance issues with __int128. And I would
> like to check the performance by forcibly disabling int128(Maxalign16bytes)
> and enable like long long(maxlign 8bytes).
> Is it possible to disable int128 in PostgreSQL?
Sure, you can build without it --- easiest way would be to modify
pg_config.h after the configure step. But the idea that it has
something to do with lock contention seems like nonsense.
regards, tom lane