pdqsort
VxSort
pdqsort | VxSort | |
---|---|---|
9 | 1 | |
2,288 | 100 | |
- | - | |
0.0 | 10.0 | |
5 months ago | almost 2 years ago | |
C++ | C# | |
zlib License | MIT License |
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pdqsort
- Pattern-Defeating Quicksort (Pdqsort)
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Faster sorting algorithm
I found that this exists: https://github.com/orlp/pdqsort
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How sorting algorithms work
Their sort_unstable algorithm is based on this pattern-defeating quicksort.
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Timsort – the fastest sorting algorithm you’ve never heard of
Closely related is pattern defeating quicksort ( https://github.com/orlp/pdqsort ), which adapts quicksort to take advantage of sorted runs. I've adapted a few quicksorts to pdqsort and seen good speedups (as people were often sorting partially sorted data)
Basically: Timsort is to mergesort as pdqsort is to quicksort
- I tried creating a sorting algorithm in C language.
- Do Low-Level Optimizations Matter?
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Discussion Thread
I was thinking of optimal C++ over native types. I just spoke up because if your intuition of quicksort is that 50k elements should take 20ms you’re drastically underestimating computer performance. They’re crazy fast and optimized sorting algorithms are downright scary.
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Beating Up on Qsort (2019)
Just for fun, I added pdqsort to the benchmark:
https://github.com/orlp/pdqsort
Here are some of the results on an Ivy Bridge hackintosh:
size, qsort, inline, sort, stable_sort, pdqsort, radix7
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Which sorting algorithm did you implement in your programming language?
sort_unstable is a pattern-defeating quicksort (https://github.com/orlp/pdqsort) added with RFC#1884 (https://github.com/rust-lang/rfcs/pull/1884).
VxSort
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Faster sorting algorithm
I prefer vxsort.
What are some alternatives?
fluxsort - A fast branchless stable quicksort / mergesort hybrid that is highly adaptive.
American Fuzzy Lop - american fuzzy lop - a security-oriented fuzzer
quadsort - Quadsort is a branchless stable adaptive mergesort faster than quicksort.
ZBar - Clone of the mercurial repository http://zbar.hg.sourceforge.net:8000/hgroot/zbar/zbar
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