Marcelo Gardini do Amaral wrote:
The limited testing I've done on a Sun V20z at work suggests that you
can get better routing throughput in interrupt mode than polling mode.
YMMV and this is before tweaking the polling parameters. (My testing
also suggests that I don't really need to do any tweaking because
the limiting factor is the gigabit interfaces rather than the V20z).
I've noticed a higher (and variable) RTT with polling mode activated,
without tweaking any parameters.
Yes, the RTT will vary based on whether the interface has to wait a full
tick or only a partial tick for the polling loop to become active.
Adaptive polling eliminates most of this variance.
Scott
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