msi-x, net.isr, polling

[Sami Halabi]

Hi everyone,

I see reference to options: net.isr, msi-x, polling specially in ter,s of
tuning and performance namely for packet processing/drops.

I've searced (google, wiki and so on...) and I'm confused about these
options and concerned about them since I'm working on routing and
performance issues based on FreeBSD.

can someone give light and detailed explanation about theseoptions,when
should/shouldn't be used?

Thanks in advance,

Merry Christmas,

-- 
Sami Halabi
Information Systems Engineer
NMS Projects Expert