On Wed, Jul 22, 2020 at 10:03 AM Thomas Munro <thomas.mu...@gmail.com> wrote: > > On Wed, Jul 22, 2020 at 3:57 PM Amit Kapila <amit.kapil...@gmail.com> wrote: > > Yeah, that is true but every time before the test the same amount of > > data should be present in shared buffers (or OS cache) if any which > > will help in getting consistent results. However, it is fine to > > reboot the machine as well if that is a convenient way. > > We really should have an extension (pg_prewarm?) that knows how to > kick stuff out PostgreSQL's shared buffers and the page cache > (POSIX_FADV_DONTNEED). >
+1. Such an extension would be quite helpful for performance benchmarks. -- With Regards, Amit Kapila. EnterpriseDB: http://www.enterprisedb.com
