Xiaolin Zhao
18f770732f
The performance gains on Loongson 3A6000 and 3A5000 are as follows:
goos: linux
goarch: loong64
pkg: golang.org/x/crypto/salsa20
cpu: Loongson-3A6000-HV @ 2500.00MHz
| bench.old | bench.new |
| sec/op | sec/op vs base |
XOR1K 3175.0n ± 0% 435.4n ± 0% -86.29% (p=0.000 n=20)
| bench.old | bench.new |
| B/s | B/s vs base |
XOR1K 307.6Mi ± 0% 2242.7Mi ± 0% +629.13% (p=0.000 n=20)
goos: linux
goarch: loong64
pkg: golang.org/x/crypto/salsa20
cpu: Loongson-3A5000 @ 2500.00MHz
| bench.old | bench.new |
| sec/op | sec/op vs base |
XOR1K 4125.0n ± 0% 864.0n ± 0% -79.05% (p=0.000 n=20)
| bench.old | bench.new |
| B/s | B/s vs base |
XOR1K 236.7Mi ± 0% 1130.3Mi ± 0% +377.41% (p=0.000 n=20)
Change-Id: Ib37f603e6654f1e3837985fad4b6dee10b5af993
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/663375
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Carlos Amedee <carlos@golang.org>
32 lines
1.0 KiB
Go
32 lines
1.0 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build (amd64 || loong64) && !purego && gc
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package salsa
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import (
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"bytes"
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"testing"
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)
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func TestCounterOverflow(t *testing.T) {
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in := make([]byte, 4096)
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key := &[32]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5,
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6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2}
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for n, counter := range []*[16]byte{
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&[16]byte{0, 1, 2, 3, 4, 5, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0}, // zero counter
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&[16]byte{0, 1, 2, 3, 4, 5, 6, 7, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff}, // counter about to overflow 32 bits
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&[16]byte{0, 1, 2, 3, 4, 5, 6, 7, 1, 2, 3, 4, 0xff, 0xff, 0xff, 0xff}, // counter above 32 bits
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} {
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out := make([]byte, 4096)
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XORKeyStream(out, in, counter, key)
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outGeneric := make([]byte, 4096)
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genericXORKeyStream(outGeneric, in, counter, key)
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if !bytes.Equal(out, outGeneric) {
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t.Errorf("%d: assembly and go implementations disagree", n)
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}
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}
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}
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