ServerWorks chipset

Mark Hahn hahn at coffee.psychology.mcmaster.ca
Sat Oct 14 20:06:51 EDT 2000


> Function      Rate (MB/s)   RMS time     Min time     Max time
> Copy:         405.2265       0.1580       0.1579       0.1584
> Scale:        403.5475       0.1586       0.1586       0.1587
> Add:          512.4053       0.1874       0.1874       0.1874
> Triad:        353.2453       0.2718       0.2718       0.2719
> 
> Currently the machine has 4 128-MB 133MHz DIMMs.  Sorry, I don't have

I'm sort of amazed at these numbers, since they're not really
impressive, considering the specs from www.serverworks.com.
for instance, my incredibly cheap duron/600 with pc133 gives:

Function      Rate (MB/s)   RMS time     Min time     Max time
Assignment:   525.1589       0.0305       0.0305       0.0306
Scaling   :   505.7214       0.0317       0.0316       0.0317
Summing   :   553.1737       0.0434       0.0434       0.0435
SAXPYing  :   523.9031       0.0458       0.0458       0.0459

could SW hardware be slow merely because people are using ECC?
this particular copy of stream is compiled with an athlon-aware
gcc snapshot, but it's not doing any funky prefetching...


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