[ixp1200] Peculiar drops. (quiz)

[Yannis Haritakis]

Indeed that's the case!

However, in my opinion the reason is not the actual reading
of the counters.

Rather it is the fact of interaction with the linux
which is running entirely on the SDRAM.

Therefore even if i press the enter multiple times
will be disastrous! :-))))

So how can we get read of linux after we have uploaded
the code ?? :-))

Thanks for your time!
yannis





On Fri, 11 Jul 2003, Kenneth M. Mackenzie wrote:

> Hi Yannis,
>
> >  However this is not the case, and whenever I ran the utility
> > it reports about 10 to 15 dropped packets, never more. Why ?
>
> Are you reading the counters while packets are still coming in?
>
> I haven't run code (at least this kind of code) on an 2506 yet but on
> the 2505 I noticed that the act of reading the counters in the MAC on
> the 2505 would cause it to drop packets ("bvmac" utility in the ASAN
> distribution reading via Intel's octmac.o driver).  That would explain
> a small constant number every time you measure.
>
> -- Ken
>