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Xiaolin Zhao 953e809589 chacha20: add loong64 SIMD implementation

The performance of chacha20 has been greatly improved on 3A6000 and 3A5000.

goos: linux
goarch: loong64
pkg: golang.org/x/crypto/chacha20
cpu: Loongson-3A6000 @ 2500.00MHz
                 |  bench.old   |              bench.new              |
                 |    sec/op    |   sec/op     vs base                |
ChaCha20/64         171.9n ± 0%   159.3n ± 0%   -7.33% (p=0.000 n=20)
ChaCha20/256        592.2n ± 0%   142.8n ± 0%  -75.89% (p=0.000 n=20)
ChaCha20/10x25      981.5n ± 0%   518.8n ± 0%  -47.14% (p=0.000 n=20)
ChaCha20/4096       8.991µ ± 0%   1.732µ ± 0%  -80.74% (p=0.000 n=20)
ChaCha20/100x40    10.651µ ± 0%   5.135µ ± 0%  -51.79% (p=0.000 n=20)
ChaCha20/65536     143.43µ ± 0%   28.76µ ± 0%  -79.95% (p=0.000 n=20)
ChaCha20/1000x65   146.17µ ± 0%   37.13µ ± 0%  -74.60% (p=0.000 n=20)
geomean             5.721µ        1.962µ       -65.70%

                 |  bench.old   |               bench.new                |
                 |     B/s      |      B/s       vs base                 |
ChaCha20/64        355.1Mi ± 0%    383.1Mi ± 0%    +7.89% (p=0.000 n=20)
ChaCha20/256       412.2Mi ± 0%   1710.2Mi ± 0%  +314.86% (p=0.000 n=20)
ChaCha20/10x25     242.9Mi ± 0%    459.6Mi ± 0%   +89.19% (p=0.000 n=20)
ChaCha20/4096      434.5Mi ± 0%   2255.8Mi ± 0%  +419.22% (p=0.000 n=20)
ChaCha20/100x40    358.1Mi ± 0%    742.9Mi ± 0%  +107.44% (p=0.000 n=20)
ChaCha20/65536     435.8Mi ± 0%   2173.2Mi ± 0%  +398.72% (p=0.000 n=20)
ChaCha20/1000x65   424.1Mi ± 0%   1669.4Mi ± 0%  +293.64% (p=0.000 n=20)
geomean            373.9Mi         1.065Gi       +191.55%

goos: linux
goarch: loong64
pkg: golang.org/x/crypto/chacha20
cpu: Loongson-3A5000 @ 2500.00MHz
                 |  bench.old   |              bench.new              |
                 |    sec/op    |   sec/op     vs base                |
ChaCha20/64         234.5n ± 0%   295.8n ± 0%  +26.14% (p=0.000 n=20)
ChaCha20/256        782.0n ± 0%   274.6n ± 0%  -64.88% (p=0.000 n=20)
ChaCha20/10x25     1340.0n ± 0%   752.7n ± 0%  -43.83% (p=0.000 n=20)
ChaCha20/4096      11.744µ ± 0%   3.455µ ± 0%  -70.58% (p=0.000 n=20)
ChaCha20/100x40    14.151µ ± 0%   7.435µ ± 0%  -47.46% (p=0.000 n=20)
ChaCha20/65536     188.05µ ± 0%   54.33µ ± 0%  -71.11% (p=0.000 n=20)
ChaCha20/1000x65   191.44µ ± 0%   66.29µ ± 0%  -65.37% (p=0.000 n=20)
geomean             7.604µ        3.436µ       -54.81%

                 |  bench.old   |               bench.new                |
                 |     B/s      |      B/s       vs base                 |
ChaCha20/64        260.3Mi ± 0%    206.3Mi ± 0%   -20.73% (p=0.000 n=20)
ChaCha20/256       312.2Mi ± 0%    888.9Mi ± 0%  +184.75% (p=0.000 n=20)
ChaCha20/10x25     177.9Mi ± 0%    316.8Mi ± 0%   +78.08% (p=0.000 n=20)
ChaCha20/4096      332.6Mi ± 0%   1130.8Mi ± 0%  +239.95% (p=0.000 n=20)
ChaCha20/100x40    269.6Mi ± 0%    513.1Mi ± 0%   +90.34% (p=0.000 n=20)
ChaCha20/65536     332.4Mi ± 0%   1150.5Mi ± 0%  +246.16% (p=0.000 n=20)
ChaCha20/1000x65   323.8Mi ± 0%    935.2Mi ± 0%  +188.81% (p=0.000 n=20)
geomean            281.3Mi         622.6Mi       +121.31%

Change-Id: I5386f2029122076c1d22a04610567e3df23877cd
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/636257
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Carlos Amedee <carlos@golang.org>

2025-04-13 20:23:16 -07:00

chacha_arm64.go

all: update go directive to 1.18

2023-10-11 22:02:22 +00:00

chacha_arm64.s

all: update go directive to 1.18

2023-10-11 22:02:22 +00:00

chacha_generic.go

internal/subtle: rename to internal/alias

2022-08-17 18:37:53 +00:00

chacha_loong64.go

chacha20: add loong64 SIMD implementation