[Lcd4linux-devel] NetGraph code

[Barry G. <mai...@pe...>]

Hi, I'm using LCD4Linux (from CVS) on my firewall, and enjoy the network 
graphs on my CF 634.

However, I notice the graphs will auto-scale to larger speeds, but then 
they never scale back down.

e.g.:
starting out, I have 0kbps traffic

I generate 2KBps traffic, and the graphs work great.

Then,
I generate 5MBps traffic (FTP transfer over 100Mbps ethernet), and they 
still work (all the way to the right).

After that,
nothing less than about 150KBps will register on the graph at all, unless I 
restart LCD4Linux.


Desired behavior(s):

1. Auto-downscaling. e.g. decrement the max over time so the graphs 
auto-shrink in scale, so smaller rates begin showing up on the graph again.


2. I have a 3com OfficeConnect 10/100 hub which has (roughly) a logarithmic 
utilization scale:
0.1 - 1.0%      2%      3%      6%      12%     25%     50%     80%
I think it would be helpful if the netgraphs could be scaled this way.


3. My internet connection is a cable modem... 3000kbps IN, 256kbps OUT; I'd 
like the outgoing part of the graph to scale correctly to 256kbps... 
perhaps that could be a configuration specification, or maybe it could be 
achieved though auto shrinking too.


I'm willing to work on at least 1 & 2 myself, however I haven't been able 
to figure out where in the code the scaling or tracking of the max values 
is being done.
Can someone fill me in on this?


Thanks,
Barry Gould