Re: [PATCH] audo-detect and use -moutline-atomics compilation flag for aarch64

>> The benchmarks in
>> https://www.postgresql.org/message-id/1C8D0E58-FB33-4105-AC00-8FA07621F5DD%40amazon.com
>> don't look like the option is a game-changer.
>
> Since then we have seen benchmarks that are several orders of magnitude faster with LSE instructions.
> I will get the new data and share.

On an m6gd.metal with PostgreSQL v11
test: pgbench - select-only
Measure tps (transactions/s), higher is better.

build without LSE: 132143 tps
with LSE atomics: 844552 tps

That is a 6.39x speedup.

Sebastian