4.0.0 JNI/reflection invocation 2/4/8 times as slow as in 3.3.3

Mon Jan 17 04:23:00 GMT 2005

>> Hi,
>> I have a test which compares the execution time of a pure java procedure
> vs. JNI/reflection calls.
>> Under certain conditions the JNI/reflection overhead doubles for each
> invocation of the test program since gcc 4.0.0. This problem only
> appears if I call ~200000 reflection methods in each round; when calling
> ~60000 methods the initial overhead is the same as in 3.3.3 and it
> doesn't increase with each invocation.
>> Does anybody know which change since 3.3.3(*) could cause this odd
> behaviour? 
>
Could you file a bug, there was a patch recently to help JNI performance
but I really doubt that would hurt.
-- Pinski