Re: tbench as a load - DDOS attack?

[Zwane Mwaikambo]

On Sun, 16 Feb 2003, Con Kolivas wrote:

> 
> Zwane M suggested using tbench as a load to test one of his recent patches and 
> gave me the idea to try using tbench_load in contest. Here are the first set 
> of results I got while running tbench 4 continuously (uniprocessor machine):
> 
> tbench_load:
> Kernel         [runs]   Time    CPU%    
> test2420            1   180     38.9    
> test2561            1   970     7.7   
> 
> This is a massive difference. Sure tbench was giving better numbers on 2.5.61 
> but it caused a massive slowdown. I wondered whether this translates into 
> being more susceptible to ping floods or DDOS attacks? You should have seen 
> tbench 16 - 3546 seconds!
> 
> comments?

Are you running this via loopback? Can you send a profile during the 
2.4.20 run?

Thanks,
	Zwane

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