[geos-devel] Current benchmarks - MD

Norman Vine nhv at cape.com
Tue Feb 11 21:25:53 EST 2003


Martin  Davis writes:
> 
> Here's my performance figures...  disappointingly slower than 
> both Paul (adjusted for 000's) and Yury...
> 
> But I'm happy that it compiles and runs!  Next up - a bit of a 
> code review, and then sign-off.

attached find changes I needed to compile the CVS
< CoordinateList.cpp change was *not* required but ...  >

Norman

FWIW
Cygwin compiled gcc 3.2
PentiumIII 733

$ source/bigtest/TestSweepLineSpeed.exe
# overlapping MCs: 406
# segment intersection tests: 226
n Pts: 1000  Executed in     30 ms.
# overlapping MCs: 406
# segment intersection tests: 278
n Pts: 2000  Executed in     60 ms.
# overlapping MCs: 406
# segment intersection tests: 248
n Pts: 4000  Executed in    110 ms.
# overlapping MCs: 406
# segment intersection tests: 250
n Pts: 8000  Executed in    210 ms.
# overlapping MCs: 406
# segment intersection tests: 272
n Pts: 16000  Executed in    401 ms.
# overlapping MCs: 406
# segment intersection tests: 264
n Pts: 32000  Executed in    861 ms.
# overlapping MCs: 406
# segment intersection tests: 236
n Pts: 64000  Executed in   1632 ms.
# overlapping MCs: 406
# segment intersection tests: 264
n Pts: 128000  Executed in   3294 ms.
# overlapping MCs: 406
# segment intersection tests: 238
n Pts: 256000  Executed in   6629 ms.
# overlapping MCs: 406
# segment intersection tests: 232
n Pts: 512000  Executed in  13289 ms.
# overlapping MCs: 406
# segment intersection tests: 232
n Pts: 1024000  Executed in  26518 ms.
Done
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