Messages in this thread | | | From | Robert Olsson <> | Date | Tue, 7 Dec 2004 13:38:56 +0100 | Subject | Re: _High_ CPU usage while routing (mostly) small UDP packets |
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Hello!
Well my experience is that it very hard not to say almost impossible to extrapolate idle cpu into any network system capacity. I guess this is what you are trying to do?
Rather load and overload the system with traffic having the characteristics you expect as a bonus you will get some kind proof of robustness and responsiveness a max load. There are tools for this type of tests.
Pádraig! Very funny... I started hacking 2 hours ago on idea I had for long time, This to do a light version of skb recycling based skb->users (the pktgen trick) with very minimal kernel change..
> Anyway attached is a small patch that I used to make the e1000 > "own" the packet buffers, and hence it does not alloc/free > per packet at all. Now this has only been tested in one > configuration where I was just sniffing the packets, so > definitely YMMV.
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