[thechat] Mac new stuff
Martin Burns
martin at easyweb.co.uk
Wed Jun 25 03:32:20 CDT 2003
On Tuesday, June 24, 2003, at 06:17 pm, Seb wrote:
> On Tue, 24 Jun 2003 17:29:49 +0100, Martin Burns
> <martin at easyweb.co.uk> wrote:
>
>> ...so, any non-current Mac users tempted to switch with all the stuff
>> announced yesterday?
>
> Not after I did a little investigation into all the benchmarks and
> claims...
Apple response:
http://apple.slashdot.org/article.pl?sid=03/06/24/
2154256&mode=thread&tid=126&tid=181
> it would seem that Apple's SPEC_2000 figures are compared to a
> crippled P4, where SSE2 has been disabled
The flags were correctly set to use SSE2 as per the gcc site
> (double floating point and vector units not available, so the
> benchmark falls back to the i387 instruction set, which is **slow**)
> and hyperthreading has been disabled (which in the tests with the
> dual-xeon effectively turns the processor into a single-cpu pentium > 3).
They performed the tests with and without hyperthreading and reported
the *better* result. I'd be interested to see the with hyperthreading
result too btw.
> Oh, and the malloc library (memory allocation, very, very important)
> is a single-threaded version that (by Apple's admission) is next to
> useless in the real world.
Not sure that that's what it said. Depends on what you're using the
machine for, I guess.
As I guessed, the Dell results were better for Linux than for Windows.
Cheers
martin
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