On Dec 11, 2007 4:06 AM, Manolo _ <mac_man2005@xxxxxxxxxx> wrote: > > Hi to all. > > I'd like to benchmark PG. I'd like to compare sorting performances (time spent, #of disk accesses, # of run produced etc) of the present Replacement Selection (external sorting) algorithm and of a refinement I'm going to implement. > > I'm new on PG, I just had the idea of how to possibly get better that algorithm and choosed to test it on PG since it's an open-source DBMS. > > I've been searching the web for a benchmark. I suppose TPC-H and Wisconsin could fit, but had problems when trying to use them. > Any suggestion on a "good benchmark"? > Any tutorial on how to use them? > > Thanks for your time. > > Regards. > Manolo. > _________________________________________________________________ > Express yourself instantly with MSN Messenger! Download today it's FREE! > http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ > ---------------------------(end of broadcast)--------------------------- > TIP 6: explain analyze is your friend > Well, there's pgbench. http://www.postgresql.org/docs/8.3/static/pgbench.html - Josh / eggyknap ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
