[CLUE-Tech] stress test for web servers / applications

[Sean LeBlanc]

On 01-17 22:02, Jeffery Cann wrote:
> On Friday 17 January 2003 07:41 pm, Nathan Hokanson wrote:
> > I think that it [Apache JMeter] can do what you need.  I haven't used it 
> > in a while, and it looks like they have increased the functionality of it
> > quite a bit since I last used it.
> 
> Dave,
> 
> Just last week, I tried to use JMeter to load test a single web server.  The 
> main problem I ran into with JMeter is that it does not allow you to stress a 
> server by simulating massive number of concurrent users.
> 
> In the JMeter 'Best Practices' section of the documentation, they suggest that 
> you not use a lot of multiple threads for stress testing.  
> 
> On a P3 laptop with 384 MB of RAM, JMeter (well, the JVM) ran out of memory at 
> 20 threads.  Unfortunately, 20 threads did not even get my CPU usage on the 
> server above 10%.  The JMeter docs suggest that to simulate concurrent users, 
> you would need several client machines, each running 5-10 threads = 5-10 
> users.  This was not feasible in my environment.  It may be in yours.
> 
> On this experience, I think JMeter is better suited for regression and 
> automated acceptance testing.  It is also possible that I am confused on the 
> threading issue to produce simulated concurrent users within JMeter.  If 
> someone can clarify, I would appreciate it.
> 
> If you have used Load Runner or Win Runner by Mercury International, I think 
> JMeter is closer to Win Runner.
> 
> I ended up using http_load, a C program and was able to easily get 100 
> concurrent users to finally put a load on my web server.
> 
> http://www.acme.com/software/http_load/

Sorry I jumped in so late, but this might have been something you could have
used, too:

http://stein.cshl.org/~lstein/torture/

Cheers,

-- 
Sean LeBlanc:seanleblanc at americanisp.net  
http://users.americanisp.net/~seanleblanc/
Get MLAC at: http://sourceforge.net/projects/mlac/
The only winner in the War of 1812 was Tchaikovsky. 
-Solomon Short