I paste how I setup the Master and Sub agent:
Master_agent:
-------------------
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_OPTIONALCONFIG,
"/abc/SNMP_master_agt.conf");
snmp_set_do_debugging(1);
snmp_enable_stderrlog();
init_agent("SNMP_master_agt");
init_snmp("SNMP_master_agt");
snmp_dbg_print();
init_master_agent();
snmp_dbg_print();
Sub_agent:
----------------
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_OPTIONALCONFIG,
"/abc//SNMP_sub_agt.conf");
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, 1);
snmp_set_do_debugging(1);
snmp_enable_stderrlog();
init_agent("SNMP_sub_agent");
init_snmp("SNMP_sub_agent");
snmp_dbg_print();
-----Original Message-----
From: Zheng, Wenjie (Barclay)
Sent: 2012年12月5日 16:06
To: 'Vincent Bernat'
Cc: [email protected]
Subject: RE: X-agent performance.
Hi Vincent
Thanks for your response.
Could you let me know what is "blocking call"?
Thanks,
Barclay
-----Original Message-----
From: Vincent Bernat [mailto:[email protected]]
Sent: 2012年12月5日 15:55
To: Zheng, Wenjie (Barclay)
Cc: [email protected]
Subject: Re: X-agent performance.
❦ 5 décembre 2012 04:57 CET, "Zheng, Wenjie (Barclay)"
<[email protected]> :
> By studying and testing SNMP performance these days, I found that X-agent is
> not efficient as I expected:
> SNMP sub-agent mode slows down the total time of getbulk, by change
> the SNMP agent architecture from master and sub-agent to only one
> agent, the performance improves dramatically.
> See below for some test result, with sub-agent, the getbulk time is
> approximately 3 times than the time without sub-agent.
>
> --------------------------------------------------------
> Table No SubAgent with Sub Agent
> --------------------------------------------------------
> 16oid, 18 rows 4s 13s
> 5 oid, 500 rows 38s 140s
> 70 oid, 70 rows 35s 152s
> ---------------------------------------------------------
With or without subagent, the performances are terrible here. You should
search first why you need 4s to get 18 rows. I suspect that you use a
blocking call to get your data. Fix this and you should get similar
performance with and without subagent.
--
printk("MASQUERADE: No route: Rusty's brain broke!\n");
2.4.3. linux/net/ipv4/netfilter/ipt_MASQUERADE.c
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