Re: Intel Pro/1000 MT and strange ping RTTs
> 8Mbits/s or 8Mbytes/s ?
8Mbits/s. That's at peak, as well.
>
> I wouldn't call that stress, unless your switch is really awful.
I'm seeing this across two different switches - a Cisco 3550 and a
Cisco 2912. I'm also seeing it in 100Mbps and 1000Mbps modes (2912
doesn't support Gbit)
> and I *think* I can reproduce your findings in a empty gigE to gigEsw
> to
> gigE connection where one of the ends is an e1000.
I'd appreciate knowing, if you have the chance. My real concern is
that the same jitter exists on TCP connections. If so, it is actually
quite detrimental to what I'm doing. It may wind up being worthwhile
to put a FE card in the server and use that instead. I'll work on
enabling NAPI, but the server is remote and I have limited access to
support personnel, so kernel recompiles always make me nervous.
Thanks again.
Mark
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