Robert Lor <[EMAIL PROTECTED]> writes: > Here is the break down between exclusive & shared LWLocks. Do the > numbers look reasonable to you?
Yeah, those seem plausible, although the hold time for CheckpointStartLock seems awfully high --- about 20 msec per transaction. Are you using a nonzero commit_delay? regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match