> 750MHz PIII, Adaptec Starfire NIC, driver modified to use hardware sg+csum
> (both Tx/Rx), and Intel i82559 (eepro100), no hardware csum support,
> vanilla driver.
> The box has 512MB of RAM, and I'm using a 100MB file, so it's entirely cached.
> 2.4.1-pre10+zerocopy, using sendfile(): 9.6% CPU
> 2.4.1-pre10+zerocopy, using read()/write(): 18.3%-29.6% CPU * why so much variance?
What are your throughput numbers?
Could you also, please, test using:
post both sender and receiver data. Repeat each test about
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