[smokeping-users] Graph cropping ... is this possible?

[Tobias Oetiker]

Ju,

Today HYUNJU JUNG wrote:

>
>  Hello,
>
>  
>
> Can anyone explain the graph below?  I can't explain Gray Square box.  
>
> I gusee ,
>
>      violet line <===   max 17% Loss
>
>      gray square box <=== RTT of Ping tests  are steady  except  when loss occurs.
>
>                                                           So the RTT bounce between  0ms (when loss occurs) and 70ms(steady RTT value)
>
> Am I right ?  if not,  please  reply me.

well the grey box below the graph is an artefact produced by a
error in smokeping ... this has been corrected some time ago.
in any vent you are seeing a log entry where 4 out of 20 pings got
lost and there was some added variability in the response time most
likely in connection with the loss (some pings got through all the
same but where a little delayed) there is rarely a situation where
pings return early.

cheers
tobi


> [IMAGE]
>
>  
>
> Thank you,
>
> HYUN JU
>
>
>
> ------- Original Message -------
> Sender : Tobias Oetiker<tobi at oetiker.ch>
> Date : 2008-09-01 16:45 (GMT+09:00)
> Title : Re: [smokeping-users] Graph cropping ... is this possible?
>
> Hi David,
>
> Today David Tomic wrote:
>
> [...]
> > So ... we can already crop/zoom graphs along the x-axis [time], but I'm
> > just wondering whether it's also possible [at least in theory] to do the
> > same thing along the y-axis [latency] as well?
> [...]
> > So ... thoughts/comments/suggestions anyone?
>
> yes it could be implemented. Its just that I am targeting my next
> development evvort in the smokeping area to go for a full rewrite
> with an all interactive ajax based frontend which will also have
> the ability you are looking for ... but this will be some time off
> ..
>
> as for a short term solution, this should certainly be hackable ...
> the cropping javascript can do vertical as well if stroked the
> right way.
>
> cheers
> tobi
>
>
>
> > Regards,
> > --David
> >
> > PS - I realise that I can just try cropping the x-axis to remove the
> > spike - which is what I'm actually doing at the moment - but that's
> > really far from an ideal solution IMHO.
> >
> > Not least of all because it makes it almost impossible to compare any
> > extended period of time before/after the big spike.
> >
> > IE - You have to crop the graph before the big spike, again afterwards,
> > and even then you sometimes have the problem of the two halves ending up
> > with a different y-axis maximum anyway.  Not good.
> >
> > _______________________________________________
> > smokeping-users mailing list
> > smokeping-users at lists.oetiker.ch
> > https://lists.oetiker.ch/cgi-bin/listinfo/smokeping-users
> >
> >
>
> -- 
> Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
> http://it.oetiker.ch tobi@oetiker.ch ++41 62 775 9902 / sb: -9900
>
> _______________________________________________
> smokeping-users mailing list
> smokeping-users at lists.oetiker.ch
> https://lists.oetiker.ch/cgi-bin/listinfo/smokeping-users
>
>  
>
>  
>
>                                                                        [sn_logo_kor.gif]
>
> ??? (JUNG HYUN JU)
>  
> ??
> ??????
>  
> ??1?
> Tel: 070-7015-6889
>  
> Fax: 070-7016-0031
> M.P: 016-244-5636
>  
> hj01.jung at samsung.com
>                                                                     [mail_logo_wyz_ani.gif]
>
>  
>
>  
>
>
>

-- 
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900