[Toybox] [PATCH] Android roadmap update.

[Rob Landley]

On 05/06/2016 11:25 AM, enh wrote:
> On Thu, May 5, 2016 at 8:04 PM, Rob Landley <rob at landley.net> wrote:
>> On 05/05/2016 11:25 AM, enh wrote:
>>> I removed iftop a while back but didn't remove it everywhere in the
>>> documentation. I switched over to toybox ps yesterday.
>>
>> Yay!
>>
>>> ---
>>>  www/roadmap.html | 10 +++++-----
>>>  1 file changed, 5 insertions(+), 5 deletions(-)
>>
>> If iftop is an iotop for network I/O, I've been meaning to do one of
>> those for a while now, but haven't looked up how yet.
> 
> you can see ours (in the CL that removed it) here:
> 
> https://android-review.googlesource.com/#/c/216389/1/toolbox/iftop.c
> 
> it was nothing like the desktop one, which is all ASCII-art bar charts.

Hmmm... This is basically taking snapshots of "ifconfig" output and
doing math on the RX BYTES and TX BYTES fields.

Unfortunately parsing /proc/net/dev doesn't associate I/O with
processes, so gluing it into the existing toys/*/ps.c hairball wouldn't
make sense (since that's all about tracking per-process attributes).
That would be header info for the first couple lines of the screen, but
I still need the per-process data. (There's apparently stuff like
nethogs that finds it, I just haven't looked up how yet.)

Rob