Re: Adding timestamp to femon

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On 3/24/08, P. van Gaans <w3ird_n3rd@xxxxxxx> wrote:
> On 03/24/2008 01:21 PM, Patrik Hansson wrote:
> > Hello
> > I couldn't find a mailinglist for dvb-apps so i hope this is ok.
> >
> > I would like to add timestamp to the output of femon -H in some way.
> > This so I can monitor ber value over a long timeperiod and see the
> > timedifference between some very high ber-values.
> >
> > I found a patch from 2005 but was unable to manually use the code in
> > dvb-apps/utils/femon/femon.c
> > I have zero skill in c/c++ but for someone with some skill i would
> > belive it would be very easy ?
> >
> > Ps. If there is a better place for this kind of question please tell me. Ds.
> >
> > / Patrik
> >
> > _______________________________________________
> > linux-dvb mailing list
> > linux-dvb@xxxxxxxxxxx
> > http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
> >
>
> Hi,
>
> I had a similar issue, but solved it. Not sure if this works with a
> recent femon, but if it doesn't you should be able to make some changes
> to my method to make it work. Here's the trick:
>
> 1. Tune to whatever you want to measure.
> 2. Execute in a terminal: "femon -h -c 3600 > filename.signal". 3600 is
> for one hour, if you want to test for e.g. 10 hours enter 36000. The
> resulting file will usually be under 5MB so don't worry. Good advice:
> put the current time in the filename because brains are unreliable.
> 3. That's quite a bit to read. But we can do it faster:
>
> Total amount of errors: "cat filename.signal | grep -c unc[^\s][^0]".
> You might need to change the regex for other femon versions.
>
> All errors and when they occured: "cat filename.signal | grep -n
> unc[^\s][^0]". -n will make it show line numbers. If the first error,
> for example, is on line 1800 that means the first error occured half an
> hour after the start of the measurement.
>
> Hope this helps.
>
> P. van Gaans
>

Thank you, it will have to do.
Using grep -v "ber 0" -n though but that should result in the same.

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