HLFS 64bit again

goodoldmarty at gmail.com goodoldmarty at gmail.com
Thu Dec 27 10:27:58 PST 2007


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>>> > > What are you using on your quad core? 32 bit linux and 32 bit userspace?
>> > 32 bit of course, and that is logical, but irrelevant. The quad is my
>> > workstation. I have 4-32 bit processors. They have large caches. I need
>> > 'only 4G' shared memory. I run a dist on it, not HLFS. Most of my linux
>> > apps are highly threaded. More execution units mean fewer context
>> > switches. This is efficient use of hardware, and runs way faster than if
>> > I was using apps compiled with any 64 bit toolchain.
>> >
>> > Marty B
>> >
>> >
> sorry to beat on a dead horse but for the record i would like point
> future questions on the subject to this thread:
> 
> http://lkml.org/lkml/2007/12/17/7
> http://lkml.org/lkml/2007/12/17/115

That text only illustrates one poor slob's software issues. He opts to use
ridiculous amounts of local memory and must sacrifice performance (and a lot of
money) no matter how he does it.
The dual/quad cores excel at 32 bit multithreading, not pretending to be 64 bit
devices. Existing '64 bit technology' needs multiple cores to emulate a
functional 64 bit CPU, and performance noticeably suffers. But yes, to that end
it still works, if a person is so obsessed;)

Marty B.
- --
Putting Microsoft in a computer is like putting screen doors in a submarine.
Hopeless.
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