Re: Keep elog(ERROR) and ereport(ERROR) calls in the cold path

On Wed, Jun 24, 2020 at 9:51 PM David Rowley <dgrowleyml(at)gmail(dot)com> wrote:
> $ pgbench -n -f pg-tpch/queries/q01.sql -T 120 tpch
>
> Which is about a 1.42% increase in performance. That's not exactly
> groundbreaking, but pretty useful to have if that happens to apply
> across the board for execution performance.
>
> For pgbench -S:
>
> My results were a bit noisier than the TPCH test, but the results I
> obtained did show about a 10% increase in performance:

This is pretty cool, particularly because it affects single-client
performance. It seems like a lot of ideas people have had about
speeding up pgbench performance - including me - have improved
performance under concurrency at the cost of very slightly degrading
single-client performance. It would be nice to claw some of that back.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company