[netperf-talk] Option -l testlen

[Rick Jones]

Alexander Vinokur wrote:
>  
> 
> Hi netperf,
> 
> -l testlen With this option you can control the length of the test. If 
> you specify a positive value for testlen, the test will run for that 
> many seconds. If you specify a negative value, the test will run for 
> that many transactions for a request/response test, or that many bytes 
> for a stream test. Some tests can only be timed. [Default: 10 seconds]
> 
> What does that option mean?

basically what it says there.

>  
> 
>>  uname –a
> 
> SunOS snt5011 5.10 Generic_127111-11 sun4v sparc SUNW,SPARC-Enterprise-T5220
> 
> Netperf-2.4.4
> 
>  
> 
> We run the following concurrent tests.
> 
> It takes more than 2 hours while l = 10 min
> 
> echo ====== UDP_STREAM Task 1 ======
> 
> Testing with the following command line:
> 
> ./netperf -l 600 -H snt5012 -i 10,2 -I 99,10 -t UDP_STREAM -- -m 1K -s 
> 256K -S 256K

Confidence intervals (the -i and -I options) repeat the test a number of 
times.  The minimum will actually be 3 iterations, the maximum will be 
what is specified with the -i option, or 30, whichever is less.

So, for the test above, it will run anywhere between 1800 (600 * 3) and 
6000 (600 * 10) seconds, give or take.

rick jones