On Sat, Mar 21, 2020 at 2:24 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> With this patch, perf shows the hotspots on Pavel's original example
> as being
>
> + 19.24% 19.17% 46470 postmaster plpgsql.so [.] exec_eval_expr
> + 15.19% 15.15% 36720 postmaster plpgsql.so [.] plpgsql_param_eval_var
> + 14.98% 14.94% 36213 postmaster postgres [.] ExecInterpExpr
> + 6.32% 6.30% 15262 postmaster plpgsql.so [.] exec_stmt
> + 6.08% 6.06% 14681 postmaster plpgsql.so [.] exec_assign_value
That's pretty sweet. As you say, there's probably some way to
eliminate some of the non-plancache overhead, but it's still a big
improvement.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
