I created a new branch (bigint7) which tests the performance of java 7's
BigInteger implementation. can people please benchmark it?
On latest fred-staging:
$ git checkout bigint7
$ ant unit -Dbenchmark=true
[junit] ------------- Standard Output ---------------
[junit] DEBUG: Warming up the random number generator...
[junit] DEBUG: Random number generator warmed up
[junit] INFO: 200 runs complete without any errors
[junit] native run time: 2998ms (14ms each)
[junit] java run time: 9080ms (45ms each)
[junit] java7 run time: 9118ms (45ms each)
[junit] native = 33.01762114537445% of pure java time
[junit] java 7 = 100.41850220264317% of pure java time
[junit] DEBUG: Warming up the random number generator...
[junit] DEBUG: Random number generator warmed up
[junit] INFO: 200 runs complete without any errors
[junit] native run time: 5994ms (29ms each)
[junit] java run time: 5093ms (25ms each)
[junit] java7 run time: 4498ms (22ms each)
[junit] native = 117.6909483604948% of pure java time
[junit] java 7 = 88.31729825250343% of pure java time
[junit] ------------- ---------------- ---------------
First test is modPow(), second test is doubleValue()
If these tests are typical, it looks like we should remove the native
implementation of doubleValue, but it doesn't seem that important.
X
