Em dom., 24 de mai. de 2020 às 14:34, Peter Geoghegan <p...@bowt.ie> escreveu:
> On Sun, May 24, 2020 at 2:52 AM Ranier Vilela <ranier...@gmail.com> wrote: > > There was news in Phoronix about the Beta 1 Release of Postgres (1). > > Unfortunately for Postgres advocacy it does not bring good news, > > it is showing regressions in the benchmarks compared to version 12. > > Without going into the technical merits of how the test was done, > > they have no way of knowing whether such regressions actually exist or > if it is a failure of how the tests were done. > > This shellscript appears to be used by Phoronix to run pgbench: > > > https://github.com/phoronix-test-suite/phoronix-test-suite/blob/f0f8c726f2700faea363f176a4b28dab026d45d0/ob-cache/test-profiles/pts/pgbench-1.8.4/install.sh > > It looks like they're only running pgbench for 60 second runs in all > configurations -- notice that "-T 60" is passed to pgbench. I'm not > entirely sure that that's all that there is to it. Still, there isn't > any real attempt to make it clear what's going on here. I have my > doubts about how representative these numbers are for that reason. > I also find it very suspicious.V12 seems to be better at read-only workloads (at least it shows the graphics). I'm using V13, in normal mode (read / write), medium load. regards, Ranier VIlela
