mirror of
https://github.com/v2fly/v2ray-core
synced 2024-02-27 03:18:06 +00:00
ChinsyoandChinsyo
bdf715afa9
* Optimize rand.Intn(65536) to rand.Int31() >> 15, with ~20% performance improvement. * Optimize rand.Intn(65536) to rand.rand.Int63() >> 47 * Remove rand.Seed call duplicate with original source code Co-authored-by: Chinsyo <chinsyo@sina.cn>
51 lines
727 B
Go
51 lines
727 B
Go
package dice_test
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import (
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"math/rand"
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"testing"
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. "v2ray.com/core/common/dice"
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)
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func BenchmarkRoll1(b *testing.B) {
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for i := 0; i < b.N; i++ {
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Roll(1)
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}
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}
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func BenchmarkRoll20(b *testing.B) {
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for i := 0; i < b.N; i++ {
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Roll(20)
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}
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}
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func BenchmarkIntn1(b *testing.B) {
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for i := 0; i < b.N; i++ {
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rand.Intn(1)
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}
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}
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func BenchmarkIntn20(b *testing.B) {
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for i := 0; i < b.N; i++ {
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rand.Intn(20)
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}
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}
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func BenchmarkInt31(b *testing.B) {
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for i := 0; i < b.N; i++ {
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_ = uint16(rand.Int31() >> 15)
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}
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}
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func BenchmarkInt63(b *testing.B) {
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for i := 0; i < b.N; i++ {
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_ = uint16(rand.Int63() >> 47)
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}
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}
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func BenchmarkIntn(b *testing.B) {
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for i := 0; i < b.N; i++ {
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_ = uint16(rand.Intn(65536))
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}
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}
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