selenium and web automation test: how to run large volumn stress tests
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I am using selenium and firefox webdriver to test my website, it works well. The only problem is with the computing resource restrictions, I can only run 10 browsers simultaneously in one physical machine, which is not enough for our testing suite.

The big resource bottleneck is at firefox side, it will consume a lot of RAM and CPU when it's running. I am wondering if there is any technique to reduce the RAM and CPU usage so that in one machine I can run 100 firefox browsers in the same time. That will boost my efficiency a lot.

Any ideas?