Em qua., 20 de mai. de 2020 às 21:03, Thomas Munro <thomas.mu...@gmail.com> escreveu:
> On Thu, May 21, 2020 at 11:51 AM Ranier Vilela <ranier...@gmail.com> > wrote: > > Em qua., 20 de mai. de 2020 às 20:48, Thomas Munro < > thomas.mu...@gmail.com> escreveu: > >> On Thu, May 21, 2020 at 11:15 AM Ranier Vilela <ranier...@gmail.com> > wrote: > >> > postgres=# set max_parallel_workers_per_gather = 0; > >> > Time: 227238,445 ms (03:47,238) > >> > postgres=# set max_parallel_workers_per_gather = 1; > >> > Time: 138027,351 ms (02:18,027) > >> > >> Ok, so it looks like NT/NTFS isn't suffering from this problem. > >> Thanks for testing! > > > > Maybe it wasn’t clear, the tests were done with your patch applied. > > Oh! And how do the times look without it? > Vanila Postgres (latest) create table t as select generate_series(1, 800000000)::int i; set max_parallel_workers_per_gather = 0; Time: 210524,317 ms (03:30,524) set max_parallel_workers_per_gather = 1; Time: 146982,737 ms (02:26,983) regards, Ranier Vilela
