Judd Tracy wrote:
Well ya, because netperf did not involve any other pci bandwidth on the motherboard. As soon as you start using the hard drive for a networked files system you start too loose more then half the peak bandwidth you got with netperf because now you have pci contention to deal with along with symmetrical use of the pci bandwidth by the nic and drive. But it is still a huge improvement over the ~10MB/s you probably were getting on 100Tx.. Also 120MB/s peak is very good under linux for such a slow system. Most of the issuses with getting full bandwidth gigabit deal with the tcp processing overhead. Judd
Not only that, but Duron CPUs have less cache and memory bandwidth than the regular P-III. Consider the difference between a P-III and a Celeron at the same clock rate. I realize that DMA mitigates the effect to a degree, but the low memory bandwidth and cache still have an effect on the performance. -Roberto -- Roberto C. Sanchez http://familiasanchez.net/~sanchezr
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