RE: What's the minimum RAM usage of a Net-SNMP Sub-agent? (approximate)

On Mon, 2006-01-30 at 17:57 +0200, Makavy, Erez (Erez) wrote:
> It seems that each sub-agent I run (minimal agent, no MIB modules
> loaded) takes about 6MB of RAM (including ~2MB chared memory).
>  
> That's a lot of memory for an empty process which all it does it
> talk agentX with the master.

But it isn't just a matter of "talking agentX"  -  it also needs
all the standard agent-driving code for keeping a local registry
of which handlers are responsible for which MIB objects, allocating
incoming requests accordingly, and building up the results into
the response packet.  The differences between an SNMP-based agent
and an AgentX-based one are actually relatively minor, and don't
really affect the agent libraries.

Another point to remember is that an AgentX subagent will still
be pulling in the main Net-SNMP library.  Most of this is similarly
concerned with the general task of handling "SNMP-like" requests,
rather than the specifics of the SNMP protocol itself.   Some of
this code could probably be stripped out if you were prepared to
do the work, but I'm not sure how much it would gain you.


Dave


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