On Fri, Mar 29, 2013 at 8:31 AM, Franck Routier <franck.rout...@axege.com>wrote:
> Hi, > > I don't know that tcp-b does >> > tpcb.jar is a java implementation of the http://www.tpc.org/tpcb/benchmark. > It is not particularly representative of my workload, but gives > a synthetic, db-agnostic, view of the system performance. > We use it to have quick view to compare differents servers (different OS, > different RDBMS, etc...). > I took a quick look at that implementation, and I can't make heads nor tails of it. It is just a lit of .java files. There is no documentation, README, instructions, or example usage. Am I missing something? How do I run it, and tell it what scale to use and what database to connect to? > That said, the test wil create tables, load them with data, and perform > some transactions on them. > The point that makes me wonder what happens, is that the test run on my > main database is slow, while the same test run on a database on its own is > quick. > This is the same postgresql cluster (same postgresql.conf), same > tablespace (so same disks), same hardware obviously. > > Regarding the server activity, it seems quite flat : iostat shows that > disks are not working much (less than 5%), Which column of the iostat output is that coming from? > top shows only one active core, and load average is well under 1... > Can you show the first few rows of the top output? Cheers, Jeff
