Codebase list golang-github-minio-sha256-simd / fb0ad5b
Clarify comment on unrolling that this is now the default and where the macrofied version can be found in the history. Also fix a small typo. frankw 6 years ago
2 changed file(s) with 10 addition(s) and 10 deletion(s). Raw diff Collapse all Expand all
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README.md less more
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4040 Below is the speed in MB/s for a single core (ranked fast to slow) as well as the factor of improvement over `crypto/sha256` (when applicable).
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42 | Processor | Package | Speed | Improvement |
43 | --------------------------------- | ---------------------------- | -----------:| -----------:|
44 | 1.2 GHz ARM Cortex-A53 | minio/sha256-simd (ARM64) | 638.2 MB/s | 105x |
45 | 2.4 GHz Intel Xeon CPU E5-2620 v3 | minio/sha256-simd (AVX2) (*) | 355.0 MB/s | 1.88x |
46 | 2.4 GHz Intel Xeon CPU E5-2620 v3 | minio/sha256-simd (AVX) | 306.0 MB/s | 1.62x |
47 | 2.4 GHz Intel Xeon CPU E5-2620 v3 | minio/sha256-simd (SSE) | 298.7 MB/s | 1.58x |
48 | 2.4 GHz Intel Xeon CPU E5-2620 v3 | crypto/sha256 | 189.2 MB/s | |
49 | 1.2 GHz ARM Cortex-A53 | crypto/sha256 | 6.1 MB/s | |
42 | Processor | Package | Speed | Improvement |
43 | --------------------------------- | ------------------------- | -----------:| -----------:|
44 | 1.2 GHz ARM Cortex-A53 | minio/sha256-simd (ARM64) | 638.2 MB/s | 105x |
45 | 2.4 GHz Intel Xeon CPU E5-2620 v3 | minio/sha256-simd (AVX2) | 355.0 MB/s | 1.88x |
46 | 2.4 GHz Intel Xeon CPU E5-2620 v3 | minio/sha256-simd (AVX) | 306.0 MB/s | 1.62x |
47 | 2.4 GHz Intel Xeon CPU E5-2620 v3 | minio/sha256-simd (SSE) | 298.7 MB/s | 1.58x |
48 | 2.4 GHz Intel Xeon CPU E5-2620 v3 | crypto/sha256 | 189.2 MB/s | |
49 | 1.2 GHz ARM Cortex-A53 | crypto/sha256 | 6.1 MB/s | |
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51 (*) Measured with the "unrolled"/"demacro-ed" AVX2 version. Due to some Golang assembly restrictions the AVX2 version that uses `defines` loses about 15% performance. The optimized version is contained in the git history so for maximum speed you want to do this after getting: `git cat-file blob 586b6e > sha256blockAvx2_amd64.s` (or vendor it for your project; see [here](https://github.com/minio/sha256-simd/blob/13b11bdf9b0580a756a111492d2ae382bab7ec79/sha256blockAvx2_amd64.s) to view it in its full glory).
51 Note that the AVX2 version is measured with the "unrolled"/"demacro-ed" version. Due to some Golang assembly restrictions the AVX2 version that uses `defines` loses about 15% performance (you can see the macrofied version, which is a little bit easier to read, here https://github.com/minio/sha256-simd/blob/e1b0a493b71bb31e3f1bf82d3b8cbd0d6960dfa6/sha256blockAvx2_amd64.s).
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5353 See further down for detailed performance.
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sha256block_arm64.s less more
1818 //
1919
2020 //
21 // Based on implementaion as found in https://github.com/jocover/sha256-armv8
21 // Based on implementation as found in https://github.com/jocover/sha256-armv8
2222 //
2323 // Use github.com/minio/asm2plan9s on this file to assemble ARM instructions to
2424 // their Plan9 equivalents