I honestly don't have much experience with it on lower end platforms. The
two or three cases I can think of, it has only made a ~ 10% difference.
In situations with higher-end hardware (7513, etc), it can drop utilization
by 30% or more. If cef is run distributed, the utilization is cut even
mo
We have a 7513 as our backbone router and pre-12.0 it was running on average at maybe
9-10% CPU. After upgrading to 12.1 and turning on CEF, that dropped to around 5%.
That's really not a good test because we were hardly pushing the thing to begin with.
Still, it does seem to make a noticabl
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