On Fri, Jul 8, 2011 at 6:02 AM, Florian Pflug <f...@phlo.org> wrote: >> I don't want to fiddle with your git repo, but if you attach a patch >> that applies to the master branch I'll give it a spin if I have time. > > Patch attached. > > Beware that it needs at least GCC 4.1, otherwise it'll use a per-partition > spin lock instead of "locked xadd" to increment the shared counters.
[ Back from vacation, catching up on email. ] gcc version 4.4.5 (Ubuntu/Linaro 4.4.4-14ubuntu5) pgbench -n -S -T 180 -c 32 -j 32 with lwlock-part patch: tps = 36974.644091 (including connections establishing) unpatched cd34647c666be867f95ef8fc0492c30356043f10: tps = 39432.064293 (including connections establishing) And with -c 8 -j 8: tps = 26946.202428 (including connections establishing) tps = 27206.507424 (including connections establishing) -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
