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Gevent + Requests Performance With verify=True/False

If you use gevent with requests.get on a HTTPS URL with the default verify=True enabled, you’ll see almost 2x longer execution times than with verify=False.

I made a script to test:

Here are the results:

verify=True took: 40.3454630375 secs verify=False took: 39.3803040981 secs gevent verify=True took: 2.23735189438 secs gevent verify=False took: 1.58263015747 secs

I suspect that gevent is having trouble using pyopenssl concurrently because it’s a C library.