Hi,
I was making some performance tests with the python-orekit library and found a quite a difference between the 32-bit and 64-bit jvm. This is not very scientific test, done on laptop on battery power but indicates that 64-bit should be faster which is a bit contrary to what I read on many articles on the net. There is a certain part of python also that may influence.
|
N |
maxheap |
32 bit(s) |
64 bit(s) |
Reduction |
| AbstractDetectorTest.py |
10, |
256m |
2,23 |
1,73 |
22% |
| AltitudeDetectorTest.py |
100 |
,256m |
0,29 |
0,32 |
-10% |
| NodeDetectorTest.py |
10 |
,256m |
4,63 |
4,14 |
11% |
|
|
|
|
|
|
| KeplerianConverterTest.py |
100 |
,256m |
7,82 |
6,33 |
19% |
| BackandforthTest.py |
100 |
,256m |
1,32 |
1,24 |
6% |
These test are not 1:1 to the java tests.
Do you have any experience on performance optimization for the jvm? Are you running 32 or 64 bit? Does the maxheap parameter influence significantly?
Best Regards
/Petrus