[PLUG] per process bandwidth limitation?

[Malcolm <mjhlists-plug@liminalflux.net>]

I'm trying to work out if it's possible to limit bandwidth usage on a per 
process level under linux, but haven't found anything in my searches so I 
figured I'd ask here.

I found documentation on rate limiting per protocol (eg. no more than 80% 
http), or cumulative (eg. don't exceed more than 1Mbs) and other QoS type 
things. 

However what I need to do is run a collection of identical processes each of 
which is limited to a fixed maximum (I'm trying to simulate load from what 
will be a significant number of machines on dialup connections without 
actually having a few hundred machines to run the test with).

I do have control over the software, so if there isn't a system level control 
available I can edit things, however all the software side solutions I've 
found are 'bursty' - any one connection can exceed the limits for short 
periods of time (whatever your time interval is, and two short an interval 
distorts the traffic as well as you end up sending more smaller packets), and 
as the communications in question are bursty in nature this distorts the 
test.

Anyone got any pointers as to where to look? (google has not  helped for 
once).


-- 
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let us breathe, let us see, let us be.
- 'Breathe' Cruxshadows
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