On Wed, Feb 21, 2018 at 10:03 PM, Mithun Cy <mithun...@enterprisedb.com> wrote: > seeing futex in the call stack andres suggested that following commit could > be the reason for regression > > commit ecb0d20a9d2e09b7112d3b192047f711f9ff7e59 > Author: Tom Lane <t...@sss.pgh.pa.us> > Date: 2016-10-09 18:03:45 -0400 > > Use unnamed POSIX semaphores, if available, on Linux and FreeBSD. > > Commenting out same in src/template/linux I did run the benchmark tests > again > performance improved from 26871.567326 to 34286.620251 (both median of 3 > TPS).
Hmm. So that commit might not have been the greatest idea. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
