Benchmark Showcase - coregex vs stdlib Performance

[kolkov]

Benchmark Results: coregex vs Go stdlib

This thread showcases real-world benchmark comparisons between coregex and Go's standard library regexp.

Test Environment

• Go 1.23+
• AMD64 with AVX2 support
• All benchmarks run with -benchmem -benchtime=3s

Overall Performance Summary

Category	Pattern Example	stdlib	coregex	Speedup
Case-insensitive	(?i)sherlock	1.6 ms	7 us	233x
Suffix matching	.*\.txt	27 ms	21 us	1,314x
Capture groups	(\d+)-(\d+)	700 ns	70 ns	10x
Simple literal	hello	688 ns	196 ns	3.5x

How to Run Your Own Benchmarks

# Clone the repository
git clone https://github.com/coregx/coregex.git
cd coregex

# Run comparison benchmarks
go test -bench=. -benchmem ./benchmark/comparison/

# Run specific pattern test
go test -bench=BenchmarkReverseSuffix -benchmem ./meta/

Share Your Results!

Have you tested coregex with your patterns? Share your benchmark results in the comments!

What to include:

• Pattern used
• Input size
• stdlib vs coregex times
• Your use case (log parsing, data extraction, etc.)

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We'll periodically update this post with community-submitted benchmarks.