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

I'm aiming mainly at RAM usage of the snmp libraries, and agentX
library.
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.
If I run 10 agents, it sums up to about 42MB (4 x 10 + 2) of RAM which
is a lot for an embedded system.
 
 
[I tested it on Wind River embedded Linux, using Net-SNMP 5.1.2,
 I'm currently trying all suggested configuration options to reduce RAM
usage,
 and I'd like an estimate of the minimum]
 
Thanks,
Erez.
 

  _____  

From: William R. Buckley [mailto:[email protected]] 
Sent: Monday, January 30, 2006 5:09 PM
To: Makavy, Erez (Erez)
Cc: [email protected]
Subject: RE: What's the minimum RAM usage of a Net-SNMP Sub-agent?
(approximate)


Erez:
 
This can be easily determined, by creating first an agent without a
sub-agent,
and then creating an agent that includes a minimal sub-agent.  A minimal
sub-agent would serve a single OID at the top of a sub-tree.  That is,
the
tree served by the sub-agent would be of minimal extent, and have a
single
leaf node, and having no extent of hierarchy.
 
Under these circumstances, subtraction of the code sizes (size of the
corresponding executables) should give the minimal size of a sub-agent.
 
Of course, this computation would not account for any RAM usage made
in response to run-time allocation/de-allocation requests, such as those
caused by calls to functions like malloc().
 
William R. Buckley


  _____  

	From: [email protected]
[mailto:[email protected]] On Behalf Of Makavy,
Erez (Erez)
	Sent: Monday, January 30, 2006 4:03 AM
	To: [email protected]
	Subject: What's the minimum RAM usage of a Net-SNMP Sub-agent?
(approximate)