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18 mar 2013 · The first time I log to the system and start one command it takes 6 seconds just to show a few line of help. If I immediately issue the same command again it takes 0.1s. After a couple of minutes it gets back to 6s.
19 sty 2018 · How to speed up Python application startup time. # python. I hear pipenv 9.0.2 is released with major startup time improvement. I tried it soon and I didn't feel it's fast. So I investigated it with Python 3.7's new feature. In this article, I introduce the feature and how to use it. Startup time ≒ import time.
Python. 1 import time 2 3 start_time = time.time() 4 5 for i in range(100): 6 print(i) 7 8 end_time = time.time() 9 print(f"It took {end_time-start_time:.10f} seconds to compute") There’s a small delay at the beginning when you run it with PyPy, while CPython runs it instantly.
One trick I like to do is to simulate a cold start to get an idea of the worst case performance. If I do that on a machine with a spinning hard drive, importing pkg_resources can take about 5 seconds.
• Overview of module loading in Python • Improving startup performance • Prior art • Future work Agenda
Python Startup Time. ¶. CPython startup is “slow”: takes between 8 ms and 100 ms depending on the Python version, the operating system, how many .pth files are installed, if Python runs into a virtual environment, etc. See: https://github.com/bdrung/startup-time.
26 lip 2019 · However, the solutions you reach when developing quickly aren’t always optimized for python performance. When you’re trying to shave seconds—or even minutes—from execution time, it’s good to get a reminder of strategies that might help. The strategies on this list can help you make your applications as fast as possible.
