Re: pgbench duration option

On Tue, 12 Aug 2008, Tom Lane wrote:

> This seems like a fairly bad idea, because it introduces a
> gettimeofday() call per transaction.

There's already lots of paths through pgbench that introduce gettimeofday 
calls all over the place.  I fail to see how this is any different.

> If this were worth doing (which IMHO it isn't)

I think that switching the recommended practice for running pgbench to 
something time-based rather than transactions-based would increase the 
average quality of results people got considerably.  How many times do you 
see people posting numbers that worthless because the test ran for a 
trivial amount of time?  Seems like it happens a lot to me.  This patch 
was already on my todo list for 8.4 and I'm glad I don't have to write it 
myself now.

--
* Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD