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How to generate more end systems for performance testing
This is my first post in this site. I am hopeful of getting some ideas and input for better testing.
I need to test the performance of a particular PHP script. This PHP script receives log files over a network from end systems, processes the data and fills the database with the processed data. Basically I need to test the efficiency of this script. I have to calculate the maximum throughput value of the script. This is done by increasing the number of end systems from where the logs are posted. I would like to know, how I can add more systems to the network, virtual or real machines. I have tried this performance test with close to the 10 machine available with me. But it seems like I need more, much more.
Or, is there any other way that the performance of this script be tested?
Any kind of input into the above issues is greatly appreciated. Thank you.