[Iftop-users] iftop: scaling, 1024 base, patch

[Aidas Kasparas]

richard lucassen wrote:
> On Mon, 14 Nov 2005 17:23:49 +0200
> Aidas Kasparas <a.kasparas@gmc.lt> wrote:
> 
> 
>>	iftop is fantastic tool! Thanks for it.
>>
>>	On the other hand, I found little strange when it's scale ends
>>	at 977kb
>>with traffic in the ranges 256+ .. ~1000 kb and then jumps right to
>>9.54Mb. If someone has 1-1.5Mbit (and I'm one of such), then suddenly
>>all the graphs become very small. I tried to add more steps and at the
>>same time move to base 1024.
>>
>>	Attached patch solves these problems. Unfortunately, I had no
>>	setup to
>>test correctness of this patch for speeds above 2Mbps.
> 
> 
> What about the option e.g. "-m 1536k"?

OK, that option works, but is not allways convienient:
  -- it requires either extra typing every time or use of extra
script/alias;
  -- it is one extra thing to tell to a person to whom you introduce iftop;
  -- it is one more thing to maintain when one changes speeds (agree,
not a everyday activity, but if you support a lot of people to whom
you're not an ISP, and they tend to enter commands letter by letter, how
you wrote them, catching wrong limit is a nuisance).

On the other hand, I do not propose significant/complicated code change
in my patch. Infrastructure for automatic scaling is in present code,
what I propose is to add several extra steps at better defined points.

What I would like to see more is an optional automatic scaling back, if
traffic is significantly less than current scale for extended period of
time.


-- 
Aidas Kasparas
IT administrator
GM Consult Group, UAB