Skip to content

BenchmarkHash function, the parameter h is changed from maphash to *maphash.Hash #8

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: release
Choose a base branch
from
Open

BenchmarkHash function, the parameter h is changed from maphash to *maphash.Hash #8

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
40 changes: 19 additions & 21 deletions tests/runtime/memhash_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,36 +1,34 @@
package main

import (
"hash/maphash"
"strconv"
"testing"
"hash/maphash"
"strconv"
"testing"
)

var buf [8192]byte

func BenchmarkMaphash(b *testing.B) {
var h maphash.Hash
benchmarkHash(b, "maphash", h)
var h maphash.Hash
benchmarkHash(b, "maphash", &h)
}

func benchmarkHash(b *testing.B, str string, h maphash.Hash) {
var sizes = []int{1, 2, 3, 4, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 1024, 8192}
for _, n := range sizes {
b.Run(strconv.Itoa(n), func(b *testing.B) { benchmarkHashn(b, int64(n), h) })
}
func benchmarkHash(b *testing.B, str string, h *maphash.Hash) {
var sizes = []int{1, 2, 3, 4, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 1024, 8192}
for _, n := range sizes {
b.Run(strconv.Itoa(n), func(b *testing.B) { benchmarkHashn(b, int64(n), h) })
}
}

var total uint64

func benchmarkHashn(b *testing.B, size int64, h maphash.Hash) {
b.SetBytes(size)

sum := make([]byte, 4)

for i := 0; i < b.N; i++ {
h.Reset()
h.Write(buf[:size])
sum = h.Sum(sum[:0])
total += uint64(sum[0])
}
func benchmarkHashn(b *testing.B, size int64, h *maphash.Hash) {
b.SetBytes(size)
sum := make([]byte, 4)
for i := 0; i < b.N; i++ {
h.Reset()
h.Write(buf[:size])
h.Sum(sum[:0])
total += uint64(sum[0])
}
}