https://github.com/mmcloughlin/aesnix
Experiments with AES-NI performance in Golang
https://github.com/mmcloughlin/aesnix
Last synced: 6 months ago
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Experiments with AES-NI performance in Golang
- Host: GitHub
- URL: https://github.com/mmcloughlin/aesnix
- Owner: mmcloughlin
- Created: 2017-07-23T08:53:23.000Z (about 8 years ago)
- Default Branch: master
- Last Pushed: 2021-11-20T11:53:19.000Z (almost 4 years ago)
- Last Synced: 2025-04-05T14:47:28.209Z (6 months ago)
- Language: Assembly
- Size: 17.6 KB
- Stars: 7
- Watchers: 2
- Forks: 2
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
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README
# aesnix
Experiments with AES-NI performance in Golang.
These tests support the implementation of [AES-CTR
mode](https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation) in
assembly (Golang issue [#20967](https://golang.org/issue/20967)). We are
interested in performance improvements obtained by encrypting multiple blocks
at the same time (with the same key).
Results show massive improvements up to 4 concurrent blocks and inconsistent
or diminishing returns beyond that. Comparisons to functions that purely
contain `AESENC` calls suggest the other memory and arithmetic operations are
lost in the noise (as you would expect).
```
$ go test -bench . -benchtime 20s
BenchmarkSingle-4 5000000000 7.08 ns/op 2258.35 MB/s
BenchmarkMulti/2-4 5000000000 7.75 ns/op 4128.89 MB/s
BenchmarkMulti/4-4 2000000000 12.8 ns/op 5007.81 MB/s
BenchmarkMulti/6-4 2000000000 19.2 ns/op 5010.51 MB/s
BenchmarkMulti/8-4 1000000000 25.7 ns/op 4975.29 MB/s
BenchmarkMulti/10-4 1000000000 32.1 ns/op 4987.93 MB/s
BenchmarkMulti/12-4 1000000000 38.4 ns/op 5000.29 MB/s
BenchmarkMulti/14-4 1000000000 44.6 ns/op 5025.15 MB/s
BenchmarkNomem/2-4 5000000000 6.38 ns/op 5018.09 MB/s
BenchmarkNomem/4-4 2000000000 12.8 ns/op 5000.03 MB/s
BenchmarkNomem/6-4 2000000000 19.1 ns/op 5023.91 MB/s
BenchmarkNomem/8-4 1000000000 25.8 ns/op 4963.32 MB/s
BenchmarkNomem/10-4 1000000000 32.0 ns/op 5005.75 MB/s
BenchmarkNomem/12-4 1000000000 38.6 ns/op 4978.14 MB/s
BenchmarkNomem/14-4 1000000000 44.9 ns/op 4989.37 MB/s
```
See [results of some more in-depth tests](RESULTS.md).