Re: Xeon processors &&Hyper-Threading

[Joe <joe@tmsusa.com>]

Don't linux vendors ship a variety of precompiled
kernels to match the various hardware scenarios?

I'm trying to imagine why a customer would ever
want or need to roll their own...

Joe

Joe wrote:

> Thanks, I was asked this by one of our clients, and told them that 
> they would probably have to recompile their kernel.
>
> Joe
>     
>
> Richard B. Johnson wrote:
>
>> On Fri, 13 Jun 2003, Joe wrote:
>>
>>
>>> Does Linux support the Xeon (p4) processor and its capabilities?
>>>
>>> The company I work for recently ported its application to Linux and one
>>> of our current HP clients asked this and I figure it would be just a
>>> recompile the kernel as a P4, but not sure if this would do it.
>>>
>>> I'm not asking if Linux can RUN the Xeon processor.
>>>
>>> I'm asking if Linux processor takes any advantage of the 
>>> Hyper-Threading
>>> built into this processor?
>>>
>>> below is a link to more info on this.
>>>
>>> http://www.intel.com/design/xeon/prodbref/
>>>
>>> Joe
>>>
>>
>>
>> You recompile the kernel for SMP as well as P4. If the motherboard
>> hasn't disabled HT capabilities, you will take full advantage of
>> the processor under Linux. Whatever "full advantage" means, is
>> not absolute, but whatever it is, will be used to its fullest.
>> Basically, if the code is I/O bound, you'll not see any difference.
>> If the code is compute-intensive, you will.
>>
>> Cheers,
>> Dick Johnson
>> Penguin : Linux version 2.4.20 on an i686 machine (797.90 BogoMips).
>> Why is the government concerned about the lunatic fringe? Think about 
>> it.
>>