How often are commits executed the single record operation tests? Olav Sandstaa wrote:
> Kathey Marsden <[EMAIL PROTECTED]> wrote: > >>Right now we fly without a net for performance. Does anyone run any >>regular performance regression tests, especially ones for which they >>might be able to post results? > > > The results from the performance regression test I run are now > available on the following Web page: > > http://home.online.no/~olmsan/derby/perf/ > > This regression test runs "nightly" (Norwegian time) on the Derby > trunk. Currently only the following loads are included: > > * Single record operations: select, insert, update and delete of a single > record > > * "TPC-B like load" > > I hope to be able to including some join tests soon. I am also working > on trying to reduce some of "noise" from the test results (the > variance in the results are too large). > > The most positive change in the performance has been on Select > operation in client-server mode. Compared to the performance of the > 10.1.1.0 release, Derby now performs almost 20 percent better on this > particular load (a CPU reduction per transaction of about 25 > percent). This is mostly due to the performance improvements done by > Dyre, Knut Anders and Dan (and possibly others). > > Please note that if you look at some of the runs from several months > ago there are data that indicates that there has been some large > performance regressions. These are mostly due to changes in either the > test clients or the test configurations (and should have been deleted > from the graphs). > > Feel free to post any comments you have or proposals for improvements. > > ..olav >
