[freenet-dev] BigInteger and NativeBigInteger

On Tue, Sep 22, 2009 at 4:48 PM, Daniel Cheng wrote: > On Sat, Sep 19, 2009 at 7:26 AM, Ximin Luo wrote: >> I created a new branch (bigint7) which tests the performance of java 7's >> BigInteger implementation. can people please benchmark it? >> > > no significant

[freenet-dev] BigInteger and NativeBigInteger

On Sat, Sep 19, 2009 at 7:26 AM, Ximin Luo wrote: > I created a new branch (bigint7) which tests the performance of java 7's > BigInteger implementation. can people please benchmark it? > no significant different are found. AMD Athlon(TM) XP 1800+ Java(TM) SE Runtime Environment (build

[freenet-dev] BigInteger and NativeBigInteger

On Sat, Sep 19, 2009 at 7:26 AM, Ximin Luo wrote: > I created a new branch (bigint7) which tests the performance of java 7's > BigInteger implementation. can people please benchmark it? > BigInteger use java.util.Arrays.copyOfRange and friends, which are java 6 only.

Re: [freenet-dev] BigInteger and NativeBigInteger

On Sat, Sep 19, 2009 at 7:26 AM, Ximin Luo xl...@cam.ac.uk wrote: I created a new branch (bigint7) which tests the performance of java 7's BigInteger implementation. can people please benchmark it? no significant different are found. AMD Athlon(TM) XP 1800+ Java(TM) SE Runtime Environment

[freenet-dev] BigInteger and NativeBigInteger

Matthew Toseland wrote: > On Saturday 19 September 2009 03:46:27 Ximin Luo wrote: >> http://github.com/freenet/fred-staging/commit/dea2134ba56462afb0806c5e126306bd0441c5bb >> >> Why is this commit necessary? The Java API documentation for >> BigInteger.toByteArray() says "This representation is

Re: [freenet-dev] BigInteger and NativeBigInteger

On Sat, Sep 19, 2009 at 7:26 AM, Ximin Luo xl...@cam.ac.uk wrote: I created a new branch (bigint7) which tests the performance of java 7's BigInteger implementation. can people please benchmark it? BigInteger use java.util.Arrays.copyOfRange and friends, which are java 6 only.

Re: [freenet-dev] BigInteger and NativeBigInteger

Matthew Toseland wrote: On Saturday 19 September 2009 03:46:27 Ximin Luo wrote: http://github.com/freenet/fred-staging/commit/dea2134ba56462afb0806c5e126306bd0441c5bb Why is this commit necessary? The Java API documentation for BigInteger.toByteArray() says This representation is compatible

[freenet-dev] BigInteger and NativeBigInteger

On Sat, Sep 19, 2009 at 7:26 AM, Ximin Luo wrote: > 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]

[freenet-dev] BigInteger and NativeBigInteger

On Saturday 19 September 2009 03:46:27 Ximin Luo wrote: > http://github.com/freenet/fred-staging/commit/dea2134ba56462afb0806c5e126306bd0441c5bb > > Why is this commit necessary? The Java API documentation for > BigInteger.toByteArray() says "This representation is compatible with the > (byte[])

[freenet-dev] BigInteger and NativeBigInteger

Daniel Cheng wrote: > Native is slower then pure java here? flawed benchmark? > Or just some very good jit? > >>[junit] native = 117.6909483604948% of pure java time >>[junit] java 7 = 88.31729825250343% of pure java time >>[junit] - --- >>

[freenet-dev] BigInteger and NativeBigInteger

http://github.com/freenet/fred-staging/commit/dea2134ba56462afb0806c5e126306bd0441c5bb Why is this commit necessary? The Java API documentation for BigInteger.toByteArray() says "This representation is compatible with the (byte[]) constructor." X

[freenet-dev] BigInteger and NativeBigInteger

On Saturday 19 September 2009 00:29:09 Ximin Luo wrote: > the BigInteger unit test is the last one run; you don't need to look through > the huge output, just wait for it to finish and it'll be at the end. > > also, if someone could profile a node to see how important modPow really is > that

[freenet-dev] BigInteger and NativeBigInteger

the BigInteger unit test is the last one run; you don't need to look through the huge output, just wait for it to finish and it'll be at the end. also, if someone could profile a node to see how important modPow really is that would be useful (i don't have time to learn how to use a profiler

[freenet-dev] BigInteger and NativeBigInteger

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

Re: [freenet-dev] BigInteger and NativeBigInteger

On Sat, Sep 19, 2009 at 7:26 AM, Ximin Luo xl...@cam.ac.uk wrote: 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]

Re: [freenet-dev] BigInteger and NativeBigInteger

Daniel Cheng wrote: Native is slower then pure java here? flawed benchmark? Or just some very good jit? [junit] native = 117.6909483604948% of pure java time [junit] java 7 = 88.31729825250343% of pure java time [junit] - --- JNI itself

Re: [freenet-dev] BigInteger and NativeBigInteger

On Saturday 19 September 2009 03:46:27 Ximin Luo wrote: http://github.com/freenet/fred-staging/commit/dea2134ba56462afb0806c5e126306bd0441c5bb Why is this commit necessary? The Java API documentation for BigInteger.toByteArray() says This representation is compatible with the (byte[])

[freenet-dev] BigInteger and NativeBigInteger

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

Re: [freenet-dev] BigInteger and NativeBigInteger

the BigInteger unit test is the last one run; you don't need to look through the huge output, just wait for it to finish and it'll be at the end. also, if someone could profile a node to see how important modPow really is that would be useful (i don't have time to learn how to use a profiler

Re: [freenet-dev] BigInteger and NativeBigInteger

On Saturday 19 September 2009 00:29:09 Ximin Luo wrote: the BigInteger unit test is the last one run; you don't need to look through the huge output, just wait for it to finish and it'll be at the end. also, if someone could profile a node to see how important modPow really is that would be

Re: [freenet-dev] BigInteger and NativeBigInteger

http://github.com/freenet/fred-staging/commit/dea2134ba56462afb0806c5e126306bd0441c5bb Why is this commit necessary? The Java API documentation for BigInteger.toByteArray() says This representation is compatible with the (byte[]) constructor. X ___