A Tuesday 15 June 2010 16:12:09 escriguéreu: > On 14 June 2010 22:49, Francesc Alted <fal...@pytables.org> wrote: > > A Sunday 13 June 2010 18:16:02 escriguéreu: > >> On 10 June 2010 02:40, Francesc Alted <fal...@pytables.org> wrote: > >> > In order to check that I've introduced no new bugs (I have frozen any > >> > further development in Blosc until 1.0 would be out), it would be very > >> > interesting if you can participate in the second round of tests. The > >> > procedure is very similar as the first round, just go to: > >> > > >> > http://blosc.pytables.org/trac/wiki/SyntheticBenchmarks > >> > >> Still working on: > >> > >> CPU: Dual-Core AMD Opteron 1214 2.2 GHz > >> OS: Ubuntu 10.04 amd64 > >> Compiler: GCC 4.4.3 > > > > Nice! I like to have an Opteron in the benchmarks. Added plot to: > > > > http://blosc.pytables.org/trac/wiki/SyntheticBenchmarks > > > > Curiously enough, is the first platform where the performance of 2 > > threads is worse than using a single thread. I suppose this is a > > consequence of bad performance of the cache consistency subsystem, but > > only guessing... > > That is very strange, should I try the debug suite or is this mostly > unrelated to blosc?
No, the debug suite is mainly useful for maintainers (that is me, currently). But you can use the 'single' shot mode for performing punctual tests. For example: $ ./bench single 2 tests a single shot with 2 threads and the other params as indicated defaults (2 MB buffer length, 8 datatype size and 19 bit significant bits). You can add more parameters if you want to explore other domains. In single mode, the number of repetitions of each tests is 10 (contrarily to 1 in hard and extreme suites). See the code in bench.c for details. -- Francesc Alted ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ Pytables-users mailing list Pytables-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pytables-users
