On Sat, May 17, 2014 at 6:29 AM, Peter Geoghegan <p...@heroku.com> wrote: > > > On Fri, May 16, 2014 at 7:51 AM, Amit Kapila <amit.kapil...@gmail.com> wrote: >> >> shared_buffers= 8GB >> scale factor = 3000 >> RAM - 64GB > > I'm having a little trouble following this. These figure are transactions per second for a 300 second pgbench tpc-b run?
Yes, the figures are tps for a 300 second run. It is for select-only transactions. What does "Thrds" denote? It denotes number of threads (-j in pgbench run) I have used below statements to take data ./pgbench -c 64 -j 64 -T 300 -S postgres ./pgbench -c 128 -j 128 -T 300 -S postgres The reason for posting the numbers for 64/128 threads is because we have mainly concurrency bottleneck when the number of connections are higher than CPU cores and I am using 16 cores, 64 hardware threads m/c. With Regards, Amit Kapila. EnterpriseDB: http://www.enterprisedb.com
