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performance

Interactive large plot with ~20 million sample points and gigabytes of data

August 16, 2022 by Magenaut

I have got a problem (with my RAM) here: it’s not able to hold the data I want to plot. I do have sufficient HD space. Is there any solution to avoid that “shadowing” of my data-set?

Categories Python, Q&A Tags matplotlib, performance, python, scientific-computing Leave a comment

Python – How to check list monotonicity

August 16, 2022 by Magenaut

What would be an efficient and pythonic way to check list monotonicity?
i.e. that it has monotonically increasing or decreasing values?

Categories Python, Q&A Tags list, performance, python Leave a comment

What is the time complexity of popping elements from list in Python?

August 16, 2022 by Magenaut

I wonder what is the time complexity of pop method of list objects in Python (in CPython particulary). Also does the value of N for list.pop(N) affects the complexity?

Categories Python, Q&A Tags list, performance, python Leave a comment

Which is faster in Python: x**.5 or math.sqrt(x)?

August 16, 2022 by Magenaut

I’ve been wondering this for some time. As the title say, which is faster, the actual function or simply raising to the half power?

Categories Python, Q&A Tags performance, python Leave a comment

[] and {} vs list() and dict(), which is better?

August 16, 2022 by Magenaut

I understand that they are both essentially the same thing, but in terms of style, which is the better (more Pythonic) one to use to create an empty list or dict?

Categories Python, Q&A Tags dictionary, list, performance, python Leave a comment

Why are Python Programs often slower than the Equivalent Program Written in C or C++?

August 15, 2022 by Magenaut

Why does Python seem slower, on average, than C/C++? I learned Python as my first programming language, but I’ve only just started with C and already I feel I can see a clear difference.

Categories Python, Q&A Tags c#, performance, programming-languages, python Leave a comment

Python’s sum vs. NumPy’s numpy.sum

August 15, 2022 by Magenaut

What are the differences in performance and behavior between using Python’s native sum function and NumPy’s numpy.sum? sum works on NumPy’s arrays and numpy.sum works on Python lists and they both return the same effective result (haven’t tested edge cases such as overflow) but different types.

Categories Python, Q&A Tags numpy, performance, python, python-3.x Leave a comment

Fastest way to sort each row in a pandas dataframe

August 15, 2022 by Magenaut

I need to find the quickest way to sort each row in a dataframe with millions of rows and around a hundred columns.

Categories Python, Q&A Tags pandas, performance, python Leave a comment

Python decompression relative performance?

August 15, 2022 by Magenaut

TLDR; Of the various compression algorithms available in python gzip, bz2, lzma, etc, which has the best decompression performance?

Categories Python, Q&A Tags bz2, gzip, lzma, performance, python Leave a comment

Multiprocessing – Pipe vs Queue

August 15, 2022 by Magenaut

What are the fundamental differences between queues and pipes in Python’s multiprocessing package?

Categories Python, Q&A Tags multiprocessing, performance, pipe, python, queue Leave a comment
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  1. michealSmith07 on Is there a way to dynamically refresh the less command?August 21, 2022

    That is a very nice post. I like this post.

  2. anonymous on Fix libwacom9 dependency issue when upgrade DebianJune 27, 2022

    saved my day!! Thanks for the help…

  3. sreedhar on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    Thanks its working

  4. saintnick on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    remove libwacom2 worked for me as well

  5. ranafoul on Fix libwacom9 dependency issue when upgrade DebianApril 22, 2022

    apt remove libwacom2 helped on kali 2022.01. gr8

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