Rusty Russell wrote:
Yeah, every time I get close to benchmarking I find another bug :( But I've
spent some time optimising the normal lguest net device, so we'll have a fair
comparison.
In theory vringfd will get us zero copy from guest sendfile out to external
machines. For anything else we're doing a copy anyway, so avoiding copying
has no great benefit.
The interface is still worthwhile to provide zero-copy receive on intelligent
or bound NICs, but that's science fiction at the moment...
Eddie is planning exactly this...
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I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
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