"Daniel van Ham Colchete" <daniel.colchete@gmail.com> writes:
> I'm making some other tests here at another hardware (also Gentoo). I
> found out that PostgreSQL stops for a while if I change the -t
> parameter on bgbench from 600 to 1000 and I have ~150 tps instead of
> ~950tps.
> I don't know why PostgreSQL stoped, but it was longer than 5 seconds
> and my disk IO was comsuming 100% of my CPU time during this period.
Checkpoint?
regards, tom lane