"Daniel van Ham Colchete" <daniel.colchete@xxxxxxxxx> 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