On Tue, 26 Oct 1999, Neil Conway wrote:
.
.
.
>
> I guess the fairly spectacular differences (in the P-III results) are
> mainly due to compiler differences? Could all three of you guys confirm
> the details of your systems (RAM, mobo, compilers+flags, (OS!) etc)?
>
> I'm surprised that the differences are quite as big as they are between
> the two P-III machines.
>
> Neil
> -
I'd run stream_d earlier using a binary of forgotten origin. I've re-built
and rerun.
All of the results below are on an Intel N440BX with two 500 MHz PIII's, 128
MB of PC100 SDRAM, compiled with -O2, running 2.2.12 Linux, with stream_d
built to use 91.6 MB of memory (Array size = 4000000). The system was
otherwise idle.
egcs-2.91.66, cpu timer
-----------------------
Function Rate (MB/s) RMS time Min time Max time
Copy: 320.0000 0.2000 0.2000 0.2000
Scale: 320.0000 0.2041 0.2000 0.2100
Add: 384.0000 0.2581 0.2500 0.2700
Triad: 300.0000 0.3310 0.3200 0.3400
egcs-2.91.66, wall clock timer
------------------------------
Function Rate (MB/s) RMS time Min time Max time
Copy: 320.0208 0.2004 0.2000 0.2014
Scale: 318.4571 0.2013 0.2010 0.2025
Add: 372.0700 0.2594 0.2580 0.2690
Triad: 294.3115 0.3292 0.3262 0.3459
-
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