On 2013-10-01 00:28:55 +0200, Bernd Helmle wrote: > > > --On 30. September 2013 19:00:06 +0200 Andres Freund > <and...@2ndquadrant.com> wrote: > > >>HEAD (default): > >> > >>tps = 181738.607247 (including connections establishing) > >>tps = 182665.993063 (excluding connections establishing) > >> > >>HEAD (padding + 16 partitions + your lwlocks patch applied): > >> > >>tps = 269328.259833 (including connections establishing) > >>tps = 270685.666091 (excluding connections establishing) > >> > >>So, still an improvement but far away from what you got. Do you have some > >>other tweaks in your setup? > > > >The only relevant setting changed was -c shared_buffers=1GB, no other > >patches applied. At which scale did you pgbench -i? > > I've used a scale factor of 10 (i recall you've mentioned using the same > upthread...). > > Okay, i've used 2GB shared buffers, repeating with your setting i get a far > more noticable speedup: > > tps = 346292.008580 (including connections establishing) > tps = 347997.073595 (excluding connections establishing)
Could you send hierarchical profiles of both 1 and 2GB? It's curious that the difference is that big... Even though they will be a bit big, it'd be helpful if you pasted the output of "perf report --stdio", to include the callers... Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
