I'm doing stress test on my web server, using 8 different clients in jmeter:
- 3 of them are on SunOS 5
- 3 of them are on SunOS 5 but in virutalbox
- 2 of them are on linux
If I do a test only using clients which are on SunOS machines I receive best result (my web server can service ~1300 req/sec). If I make a test using all client machines, my result is ~half (600-800 req/sec) of result which I get using only 3 SunOS machines.
Can someone explain to me why?