Dual Core / Dual Processor AMD

[Ouattara Oumar Aziz]

Felipe Alfaro Solana a écrit :
> On 10/24/06, Peter Clutton <peterclutton at gmail.com> wrote:
>> Hi, I'm about to purchase a new workstatioin just for ubuntu and had a
>> question about smp support and benefits. Would appreciate any tips or
>> pointers to other information.
>>
>> If i purchase a dual core opteron or two single core opterons and
>> install the smp kernel, will i be getting the full benifits of
>> multitasking, as in, it doesn't require multithreaded applications to
>> get anything out of it?
> 
> If you purchase a dual-core processor, you will be able to take
> advantage of both cores even for non-multithreaded applications,
> provided that you run more than one task a time. For example, you can
> rip two MP3 songs at the sime, one running on each core. For example,
> when compiling software, you can use the -j flag to make in order to
> compile several targets in parallel.
> 
> So, unless you are going to play games (some titles won't take
> advantage of multi-core CPUs) it will probably worth. I'm using a
> MacBook Pro laptop which has two cores and it's extremely responsive.
> 
>> Is the support as stable as running ubuntu on single core/processor,
>> which i have found very stable? For instance is it at the stage of 64
>> bit support, where there are a few issues and not all software is
>> supported etc.
> 
> For me, SMP support is extremely stable.
> 
>> One final question, can i use smp with the two cores running 32bit smp
>> kernel, even though the opteron is 64 bit? I dont care about the the
>> advatntages of 64 bit, they would not affect anything i do.
> 
> Yes, you can.
> But running a  64-bit-enabled kernel and 64-bit applications will
> provide greater performance. For example, 64-bit systems allow
> applications to use more CPU registers, which can turn in more
> performance.
> 
> So, unless you intend to run applications that are totally broken for
> 64-bit, I would go with a 64-bit distribution. I have running SUSE on
> 64-bit Athlon X2 processors and they perform extremely well.
> 
>> If all is totally good, I would pay for the dual core/processor,
>> otherwise will pay for the best single core i can get. Thanks in
>> advance
> 
> I'd go with a dual-core system but that's my personal opinion :-)
> 

Very impressive ! next time I buy a computer, it'll be a dual core :)