Performance of Interpreter construction - Githubissues

lmfit / asteval

minimalistic evaluator of python expression using ast module

https://lmfit.github.io/asteval

MIT License

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Performance of Interpreter construction #104

Closed eendebakpt closed 2 years ago

eendebakpt commented 2 years ago

The Interpreter is constructed many times when fitting with lmfit. This PR improves performance by

Taking the calculation of the number version out of the loop
Changing the order of the check for no_deepcopy

Current master branch:

%timeit Interpreter()
364 µs ± 21.4 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)

With this PR

%timeit Interpreter()
271 µs ± 23.7 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)

@newville

newville commented 2 years ago

@eendebakpt thanks! I'll merge this