Ashkil Dighin <ashkildighi...@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


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