[LAU] 64 bit systems

Tim Blechmann tim at klingt.org
Mon Sep 28 14:50:30 EDT 2009


>>> Beyond that, is there any other advantage(s) to using a x64 OS other  
>>> than RAM access beyond 4gb? Is there any 32 bit OS performance  
>>> degradation when installed on a x64 machine?
>>>     
>>
>> audio applications benefit from the increased number of available
>> registers ... e.g. biquad filters can be computed entirely in registers
>> without moving temporal data to the stack ...
>> with my performance system (combination of supercollider and nova), i
>> experienced a speedup of about 30%, when switching from an ia32 to an
>> x86_64 system ...
>>   
> 
> Tim,
> 
> I dont know anything about how this works personally but recall seeing 
> comments that possibly referred to this;
> 
> that an application has to be coded specifically to take advantage of 
> the 64bit system advantages?

not really ... having more registers makes it easier for the compiler to
generate efficient code ... the application doesn't need to be adapted ...

tim

-- 
tim at klingt.org
http://tim.klingt.org

After one look at this planet any visitor from outer space would say
"I want to see the manager."
  William S. Burroughs

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