Re: http reqs. to 4 real servers does not scale

[Graeme Fowler <graeme@xxxxxxxxxxx>]

On 26/02/2007 12:50, Stephan Hendl wrote:
<snip>
> Are there any kernel parameter that I can tune? Or other ideas?
Several questions for you, first:

Are you using persistence?

What tool are you using to run the test?

Is your filesystem blocking the requests in some way?

Do you get any errors in your Apache logs (assuming Apache server)?

Is your test client capable of generating more than 9500 reqs/sec? I've 
(one more than one occasion) caused a test client running Apachebench to 
fall over because I've exhausted the test client's resources long before 
those of the cluster.
Graeme