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Dockerfile (5330, 2021-10-19)
LICENSE (1115, 2021-10-19)
c (0, 2021-10-19)
c\benchmark.c (1884, 2021-10-19)
c\bin (0, 2021-10-19)
cpp (0, 2021-10-19)
cpp\benchmark.cpp (1435, 2021-10-19)
cpp\bin (0, 2021-10-19)
crystal (0, 2021-10-19)
crystal\benchmark.cr (522, 2021-10-19)
crystal\bin (0, 2021-10-19)
csharp (0, 2021-10-19)
csharp\Benchmark.cs (1142, 2021-10-19)
csharp\benchmark.csproj (163, 2021-10-19)
csharp\bin-mono (0, 2021-10-19)
d (0, 2021-10-19)
d\benchmark.d (878, 2021-10-19)
dart (0, 2021-10-19)
dart\benchmark.dart (790, 2021-10-19)
go (0, 2021-10-19)
go\benchmark.go (1016, 2021-10-19)
input-text.txt (6839410, 2021-10-19)
java (0, 2021-10-19)
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# Languages Regex Benchmark It's just a simple regex benchmark for different programming languages. Measures how long it takes to find and count non-overlapping occurrences with **default settings**. > All benchmarks are wrong, but some are useful - [Szilard](https://github.com/szilard), [benchm-ml](https://github.com/szilard/benchm-ml) I hope this benchmark can be helpful, but it's not only about performance, but each language also has its engine and offers different features (like UTF support, backreferences, capturing groups ...) ## Input text The [input text](input-text.txt) is a concatenation of [Learn X in Y minutes](https://github.com/adambard/learnxinyminutes-docs) repository. *Maybe isn't the best representative text. I'm searching other texts to add to the benchmark.* ## Regex patterns - Email: ``[\w\.+-]+@[\w\.-]+\.[\w\.-]+`` - URI: ``[\w]+://[^/\s?#]+[^\s?#]+(?:\?[^\s#]*)?(?:#[^\s]*)?`` - IPv4: ``(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9])\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9])`` The above regex patterns aren't the best or the optimal. The focus is the benchmark, not the matching. The patterns are applied to the whole file. ## Measure Measuring is done inside the programs to avoid include startup, reading and writing times on results. Elapsed time include pattern compilation, find and count occurrences. ## Performance Docker image was run on: MacBook Pro (16-inch, 2019), 2.4 GHz Intel Core i9, 32 GB 2667 Mhz DDR4 with macOS Big Sur 11.2.3. Language | Email(ms) | URI(ms) | IP(ms) | Total(ms) --- | ---: | ---: | ---: | ---: **Nim Regex** | 1.32 | 26.92 | 7.84 | 36.09 **Nim** | 22.70 | 21.49 | 6.75 | 50.94 **Rust** | 26.66 | 25.70 | 5.28 | 57.63 **PHP** | 42.87 | 46.30 | 5.17 | 94.33 **C++ Boost** | 44.97 | 44.13 | 15.13 | 104.23 **Javascript** | 59.00 | 47.23 | 1.50 | 107.73 **Perl** | 94.92 | 63.96 | 20.37 | 179.25 **Julia** | 104.58 | 86.55 | 5.01 | 196.14 **C PCRE2** | 126.10 | 112.17 | 13.10 | 251.37 **Crystal** | 128.19 | 112.70 | 13.18 | 254.07 **C# .Net Core** | 115.05 | 106.05 | 42.71 | 263.81 **Dart** | 104.10 | 107.*** | 76.51 | 288.25 **D ldc** | 165.46 | 165.20 | 4.85 | 335.51 **D dmd** | 187.94 | 189.92 | 5.32 | 383.18 **Ruby** | 233.88 | 208.85 | 43.14 | 485.86 **Python PyPy2** | 158.34 | 139.70 | 253.77 | 551.81 **Dart Native** | 278.54 | 307.54 | 5.77 | 591.85 **Python 2** | 197.92 | 131.74 | 294.42 | 624.08 **Kotlin** | 186.20 | 223.05 | 287.49 | 696.74 **Java** | 1***.33 | 221.87 | 287.81 | 708.01 **Python PyPy3** | 258.78 | 221.89 | 257.35 | 738.03 **Python 3** | 273.86 | 190.79 | 319.13 | 783.78 **Go** | 248.14 | 241.28 | 360.90 | 850.32 **C++ STL** | 433.09 | 344.74 | 245.66 | 1023.49 **C# Mono** | 2859.05 | 2431.87 | 145.82 | 5436.75 ### Optimized > The following results are for the [optimized version](https://github.com/mariomka/regex-benchmark/tree/optimized). Language | Email(ms) | URI(ms) | IP(ms) | Total(ms) --- | ---: | ---: | ---: | ---: **Rust** | 11.43 | 11.40 | 5.11 | 27.94 **Nim Regex** | 1.37 | 25.51 | 7.27 | 34.15 **Nim** | 22.79 | 21.*** | 6.77 | 51.21 **C PCRE2** | 46.22 | 36.92 | 4.73 | 87.87 **PHP** | 43.18 | 46.71 | 5.23 | 95.12 **C++ Boost** | 44.68 | 44.50 | 15.10 | 104.28 **Javascript** | 59.20 | 47.67 | 1.61 | 108.48 **C# .Net Core** | 61.76 | 47.86 | 11.63 | 121.25 **Perl** | 96.00 | 63.39 | 20.59 | 179.99 **Julia** | 104.31 | 87.*** | 5.16 | 197.45 **Crystal** | 129.52 | 116.33 | 13.12 | 258.97 **Dart** | 105.82 | 107.78 | 78.18 | 291.78 **D ldc** | 167.60 | 165.71 | 5.07 | 338.37 **D dmd** | 187.66 | 192.16 | 5.55 | 385.37 **Ruby** | 236.93 | 206.51 | 43.70 | 487.14 **Python PyPy2** | 161.33 | 143.56 | 258.06 | 562.96 **Dart Native** | 273.17 | 306.14 | 5.89 | 585.20 **Python 2** | 200.54 | 132.89 | 290.26 | 623.69 **Kotlin** | 184.13 | 220.31 | 273.76 | 678.21 **Java** | 190.74 | 223.77 | 275.24 | 689.75 **Python PyPy3** | 268.41 | 226.74 | 261.17 | 756.32 **Python 3** | 273.70 | 194.09 | 322.09 | 789.88 **Go** | 244.14 | 238.40 | 365.27 | 847.81 **C++ STL** | 433.18 | 341.07 | 246.85 | 1021.10 **C# Mono** | 1400.04 | 1189.50 | 145.73 | 2735.28 - **Language**: Indicates the language. - **Email(ms)**, **URI(ms)**, **IP(ms)**: Indicates the time elapsed in milliseconds for finding and counting non-overlapping occurrences for the pattern. - **Total(ms)**: Indicates the sum of the above times. ### Versions and notes - **C**: gcc 7.5.0 & PCRE2 10.36-2 - **Crystal**: crystal 0.35.1 - LLVM: 8.0.0 - **C++**: g++ 7.5.0 | Boost 1.65.1.0 - **C#**: dotnet 5.0.201 | Mono 6.12.0.122 - **D**: DMD v2.089.0 | LDC 1.8.0 - **Dart**: Dart 2.12.2 - **Go**: go 1.16.2 - **Java**: OpenJDK 11.0.10 - **Javascript**: node v15.13.0 - **Julia**: Julia 1.6.0 - **Kotlin**: kotlinc-jvm 1.4.32 - **Nim**: Nim 1.4.4 - **Perl**: perl v5.26.1 - **PHP**: PHP 8.0.3 - **Python**: Python 2.7.17 | Python 3.6.9 | PyPy 7.3.3 - **Ruby**: ruby 2.5.1p57 - **Rust**: rustc 1.51.0 & regex 1.4.5 # How to run The easiest way to run the benchmark is by using Docker. ```sh git clone https://github.com/mariomka/regex-benchmark.git cd regex-benchmark docker run --rm -v $(pwd):/var/regex mariomka/regex-benchmark:1.6 ``` # Contributing All contributions are welcome, from tiny optimizations to new implementations. There are only a few requirements: - Follow the style of the current implementations - Use the default settings for the regex engine - Update `Dockerfile` if it's necessary # Kudos - Heng Li's for his work on [Benchmark of Regex Libraries](http://lh3lh3.users.sourceforge.net/reb.shtml). - A "challenge" on [Madrid Devs](http://madriddevs.org/) group inspired me. - [Programming subreddit](https://www.reddit.com/r/programming/), helped me to improve the benchmark. # License MIT [Mario Juarez](https://github.com/mariomka).

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