Well, the good news is that the 2.24.29 kernel solved the kswapd problem. That bad news is that it didn't help the vacuum time. In fact, the vacuum time is now over 6 hours instead of 5 hours. Whether that is a direct result of the 2.24.29 kernel, or a coincidence, I don't know at this time. I guess the next step is to try reindexing a couple of the big indexes and see if that helps. Wes ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match