GigE Performance Comparison of GMAC and SUNGEM Drivers
benh at kernel.crashing.org
Wed Nov 21 12:25:57 EST 2001
>As a result GEM sends pause frames when there is even the slightest
>amount of DMA traffic is has to compete with. On a 33Mhz/32-bit PCI
>bus, it is sending pause frames all the time even if it is the only
>agent making use of the bus.
Ok. At least, the UniNorth version runs on a 66Mhz bus directly
hooked to the CPU bus within the north bridge. The only other device
sharing that PCI segment is FireWire (well, it's a bandwidth hog
too be more rarely used so far).
Thanks for the clarification.
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