string-case
asm
| string-case | asm | |
|---|---|---|
| 1 | 4 | |
| 14 | 850 | |
| - | 1.2% | |
| 10.0 | 0.0 | |
| almost 6 years ago | 7 months ago | |
| Common Lisp | Go | |
| BSD 3-clause "New" or "Revised" License | MIT No Attribution |
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string-case
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Quickly checking that a string belongs to a small set
This reminds me of the Paul Khuong's string-case macro in Common Lisp.
https://github.com/pkhuong/string-case/blob/master/string-ca...
asm
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Quickly checking that a string belongs to a small set
We took a similar approach in our JSON decoder. We needed to support sets (JSON object keys) that aren't necessarily known until runtime, and strings that are up to 16 bytes in length.
We got better performance with a linear scan and SIMD matching than with a hash table or a perfect hashing scheme.
See https://github.com/segmentio/asm/pull/57 (AMD64) and https://github.com/segmentio/asm/pull/65 (ARM64). Here's how it's used in the JSON decoder: https://github.com/segmentio/encoding/pull/101
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Changing one character wildly improved our application's performance
OP here, the algorithms we use give us about 5-10x the performance of the standard library sort, even compared against the new pdqsort in Go 1.19. https://github.com/segmentio/asm/pull/77
- Go library providing algorithms optimized for modern CPUs
- Segmentio/asm – Go library of algorithms optimized to leverage modern CPUs
What are some alternatives?
gperf - mirror of git.savannah.gnu.org/gperf.git with more features. gitlab has the issues
sha256-simd - Accelerate SHA256 computations in pure Go using AVX512, SHA Extensions for x86 and ARM64 for ARM. On AVX512 it provides an up to 8x improvement (over 3 GB/s per core). SHA Extensions give a performance boost of close to 4x over native.
faasd - A lightweight & portable faas engine
photoscope - Journey into photo management with golang
avo - Generate x86 Assembly with Go
encoding - Go package containing implementations of efficient encoding, decoding, and validation APIs.