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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