Tatsuo Ishii wrote:
> > > Thanks. I can commit it for 7.4. BTW, it would be nice if we could
> > > have a switch to turn on/off PREPARE/EXECUTE in pgbench so that we
> > > could see how PRPARE/EXECUTE could improve the performance...
> > 
> > We could probably just run before-after patch tests to see the
> > performance change.  I am afraid adding that switch into the code may
> > make it messy.
> 
> But one of the purposes of pgbench is examining performance on
> different environments, doesn't it? I'm afraid hard coded
> PREPARE/EXECUTE makes it harder.

I was just thinking that pgbench is for measuring code changes, not for
testing changes _in_ pgbench.  Once we know the performance difference
for PERFORM, would we still keep the code in pgbench?  Maybe to test
later, I guess.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
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