[DGD] benchmark #1

[Felix A. Croes]

http://ftp.dworkin.nl/hydra/benchmarks/bm001.tar.gz

Output from my development machine is included below.  Note that the
efficiency per core drops quite a bit when using 8 cores, because at
that point, there are no free cores left for Hydra's non-LPC threads
and assorted host system tasks.  The benchmark requires Hydra 1.2.1
(it exposed a bug in 1.2).

If anyone wants to try this on a machine with hyperthreading, then I
would be interested in the output.

Regards,
Felix Croes


Sep 14 20:34:29 ** __DGD__
Sep 14 20:34:29 ** __HYDRA__
Sep 14 20:34:29 ** Kernel lib version: 1.3.4
Sep 14 20:34:29 ** Benchmark: benchmark/bm001

Sep 14 20:34:29 ** benchmark #1: determine the number of cores
Sep 14 20:34:29 ** tuning...
Sep 14 20:34:35 ** ...done
Sep 14 20:34:35 ** threads: 1
Sep 14 20:34:38 **  3628 msec
Sep 14 20:34:42 **  3627 msec
Sep 14 20:34:45 **  3627 msec
Sep 14 20:34:45 ** average: 3627 msec
Sep 14 20:34:45 ** threads: 2
Sep 14 20:34:49 **  3632 msec
Sep 14 20:34:53 **  3631 msec
Sep 14 20:34:56 **  3630 msec
Sep 14 20:34:56 ** average: 3631 msec
Sep 14 20:34:56 ** efficiency: 0.99889838
Sep 14 20:34:56 ** threads: 3
Sep 14 20:35:00 **  3636 msec
Sep 14 20:35:04 **  3636 msec
Sep 14 20:35:07 **  3635 msec
Sep 14 20:35:07 ** average: 3636 msec
Sep 14 20:35:07 ** efficiency: 0.99752475
Sep 14 20:35:07 ** threads: 4
Sep 14 20:35:11 **  3637 msec
Sep 14 20:35:15 **  3638 msec
Sep 14 20:35:18 **  3642 msec
Sep 14 20:35:18 ** average: 3639 msec
Sep 14 20:35:18 ** efficiency: 0.99670239
Sep 14 20:35:18 ** threads: 5
Sep 14 20:35:22 **  3645 msec
Sep 14 20:35:26 **  3647 msec
Sep 14 20:35:29 **  3645 msec
Sep 14 20:35:29 ** average: 3646 msec
Sep 14 20:35:29 ** efficiency: 0.99478881
Sep 14 20:35:29 ** threads: 6
Sep 14 20:35:33 **  3655 msec
Sep 14 20:35:36 **  3652 msec
Sep 14 20:35:40 **  3654 msec
Sep 14 20:35:40 ** average: 3654 msec
Sep 14 20:35:40 ** efficiency: 0.99261084
Sep 14 20:35:40 ** threads: 7
Sep 14 20:35:44 **  3655 msec
Sep 14 20:35:47 **  3652 msec
Sep 14 20:35:51 **  3659 msec
Sep 14 20:35:51 ** average: 3655 msec
Sep 14 20:35:51 ** efficiency: 0.99233926
Sep 14 20:35:51 ** threads: 8
Sep 14 20:35:55 **  3660 msec
Sep 14 20:35:58 **  3689 msec
Sep 14 20:36:02 **  3684 msec
Sep 14 20:36:02 ** average: 3678 msec
Sep 14 20:36:02 ** efficiency: 0.98613377
Sep 14 20:36:02 ** threads: 9
Sep 14 20:36:09 **  7274 msec
Sep 14 20:36:17 **  7271 msec
Sep 14 20:36:24 **  7269 msec
Sep 14 20:36:24 ** average: 7271 msec
Sep 14 20:36:24 ** efficiency: 0.49883097
Sep 14 20:36:24 ** apparent number of cores: 8