RE: [computer-go] Pattern Matcher

[Vincent Diepeveen <diep@xxxxxxxxx>]

Can you give some example code Mark?

What type of processor are we speaking about?

Because you sure must have done something wrong in programming there.

Just using pointers already means you can win a factor 2 everywhere hands
down. The rest is because JAVA cannot optimize so many registers at the
same time like good C compilers can.

Note that next msvc 2005 will give a major boost in speed to C again as it
finally will have constructions like PGO (profile guided optimization).

At 22:01 8-11-2004 -0200, Mark Boon wrote:
>
>
>> -----Original Message-----
>> From: computer-go-bounces@xxxxxxxxxxxxxxxxx
>> [mailto:computer-go-bounces@xxxxxxxxxxxxxxxxx]On Behalf Of Vincent
>> Diepeveen
>> Sent: Monday, November 08, 2004 21:58
>> To: drd@xxxxxxxxxxxxxxxxx; computer-go; computer-go@xxxxxxxxxxxxxxxxx
>> Cc: computer-go@xxxxxxxxxxxxxxxxx
>> Subject: Re: [computer-go] Pattern Matcher
>>
>>
>> I have seen benchmarks where some idiots do just memory allocations and
>> deallocations where java is faster than C. Which is published on the
>> website of Sun.
>>
>> However you can also write the software without stupid memory allocations
>> and deallocations, then the C code is 3 times faster than the java code.
>>
>> Saying it's "just 30% slower" is not exactly true. It's 3 times slower.
>>
>
>Sorry, Vincent, absolutely not true for Go programming. A straight
>translation of Goliath from C to Java lost about 30% in speed given the
>right choice of JIT. And that was not because of allocation and
>deallocations, as there are zero of that after initialisation.
>
>
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