Apologies Ron this was supposed to be directed at Andrew Miehs!

Peter Stavrinides wrote:
> From your comments Ron you obviously didn't understand a thing I
> wrote, because you have just repeated me!
>
> Andrew Miehs wrote:
>> On 29/07/2007, at 2:34 PM, Peter Stavrinides wrote:
>>
>>
>>> 32 bits processors can represent numbers up to 4,294,967,295 while a
>>> 64-bit machine can represent numbers up to
>>> 18,446,744,073,709,551,615. For modern hardware to take advantage of
>>> the processing power of the 64 bit architecture a system must have a
>>> minimum 4GB Ram, but probably needs significantly more and more
>>> importantly the CAPACITY to take full advantage of it, allocating it
>>> to running processes, with less there is potential for lag.
>>> 64bit machines have been around since the 60's but only now are
>>> software and hardware vendors supporting it for the mainstream
>>> market. So is 64bit better than 32bit right now? the answer is yes,
>>> a 64-bit processor has more technology, a better design with more
>>> transistors, thus faster speeds are possible. This is currently
>>> where the true benefit of switching to a 64-bit processor lays, it
>>> has nothing to do with the memory address space, which is exactly
>>> that, just space for more complex computations.
>>
>> This is definitely not looking at the big picture.
>>
>> Whether or not to go 64bit depends on your application.
>>
>> BASED ON MY TESTS....
>>
>> If your application runs in Java AND you are using Sun JVM 1.5 AND
>> performance is an issue, then I would definitely go 64bit linux.
>>
>> else if your Java application doesn't have a performance requirement,
>> but needs lots of memory, be that for caching or anything else, then
>> I would use 64 bit - Pick your own operating system...
>>
>> else if the machine you are using has more than 4GB RAM, I would look
>> at using a 64bit OS, - up to you whether you want 32bit or 64bit Java.
>>
>> else if none of this applies to you, I would probably run a 32 bit
>> OS, and wait for someone to port the last remaining packages/ drivers.
>>
>>
>> BTW More transistors mean less CPU clock speed - not more... (But I
>> think you meant larger operations per cycle).
>>
>> Cheers
>>
>> Andrew
>>
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>

--
Peter Stavrinides
Albourne Partners (Cyprus) Ltd
Tel: +357 22 750652

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