Merlin Moncure wrote: > Bruce Momjian wrote: > > I am timing small queries, and found that a PREPARE/EXECUTE of "SELECT > > 1" takes about 1.2ms on my machine. A normal SELECT doesn't take much > > longer, so I am wondering why a simpler query isn't faster. > > > > Looking at log_executor_stats, I see the following. Execute shows > > nothing taking much time, mostly < .2ms, but the total seems high. I > > wonder if one of our standard query start/stop functions is taking too > > long and can be optimized. > > There seems to be a 'PostgreSQL ping' time of about 1-2 ms in best case > conditions which limits the amount of queries you can fire off in 1 > second, no matter how simple. In certain rare cases this is something > of a bottleneck. In my personal case it would be nice to see that time > lower because converted COBOL applications tend to generate a lot of > 'simple' queries.
Yes, most of that might be network time. I am using log_duration, which I think just tests backend time, not network transfer time, but I might be wrong. I want to look into this as it seems no one knows the answer. -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
