Rodrigo, > 3. My transaction log configuration are : checkpoint_segments = 3 and > checkpoint_timeout = 300 and my transaction logs are on the same disk .
Well, you need to move your transaction logs to another disk, and increase them to a large number ... like 128, which is about 1GB (you'll need that much disk space). Also, increase the checkpoint_timeout to minimize checkpointing during the load; like, 1500. > I know that I can increase the performance separating the transaction > logs and making a RAID 5 array Actually, RAID5, unless you're using > 5 disks, would make things slower. Speeding writes up through RAID would require at least 6 drives, and probably RAID 1+0. > BUT I am really curious about WHY this > performance is so poor and HOW can I try to improve on this actual > machine because actualy this inserts are taking around 90 minutes!!! Are you doing INSERTS and not COPY? If so, are you batching them in transactions? -- Josh Berkus Aglio Database Solutions San Francisco ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])