Why Python Is Slow: Looking Under the Hood

Re:Why Python Is Slow: Looking Under the Hood by slashnull on Tuesday November 18, 2014 @03:03PM (#8625979)

Short answer: because it doesn't JIT

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Re:Why Python Is Slow: Looking Under the Hood by ludamad on Tuesday November 18, 2014 @03:18PM (#8626064)

That's a lossy short answer. LuaJIT with JIT turned off still runs circles around CPython.

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Re:Why Python Is Slow: Looking Under the Hood by trynumber9 on Tuesday November 18, 2014 @03:30PM (#8626142)

Even normal Lua is fast compared to Python, if the shootout games are any bit accurate.

http://benchmarksgame.alioth.debian.org/u64/benchmark.php?te...

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Re:Why Python Is Slow: Looking Under the Hood by igouy on Wednesday November 19, 2014 @02:22PM (#8632038)

You are told how the measurements were made -- Are the benchmarks game measurements accurate?

I think these questions are more to the point: Were the Python programmers as skilled as the Lua programmers? Do the programs do anything like the things your programs do?

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Re:Why Python Is Slow: Looking Under the Hood by slashnull on Tuesday November 18, 2014 @04:28PM (#8626471)

True.

So, with element of answer 1) ruled out as Lua is also dynamic, and 2) ruled out by your evidence, remains

3. Python's object model can lead to inefficient memory access

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