diff options
Diffstat (limited to 'libgo/go/runtime/map_test.go')
| -rw-r--r-- | libgo/go/runtime/map_test.go | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/libgo/go/runtime/map_test.go b/libgo/go/runtime/map_test.go index b13d269..b9a3457 100644 --- a/libgo/go/runtime/map_test.go +++ b/libgo/go/runtime/map_test.go @@ -1009,6 +1009,27 @@ func benchmarkMapDeleteStr(b *testing.B, n int) { } } +func benchmarkMapDeletePointer(b *testing.B, n int) { + i2p := make([]*int, n) + for i := 0; i < n; i++ { + i2p[i] = new(int) + } + a := make(map[*int]int, n) + b.ResetTimer() + k := 0 + for i := 0; i < b.N; i++ { + if len(a) == 0 { + b.StopTimer() + for j := 0; j < n; j++ { + a[i2p[j]] = j + } + k = i + b.StartTimer() + } + delete(a, i2p[i-k]) + } +} + func runWith(f func(*testing.B, int), v ...int) func(*testing.B) { return func(b *testing.B) { for _, n := range v { @@ -1039,6 +1060,7 @@ func BenchmarkMapDelete(b *testing.B) { b.Run("Int32", runWith(benchmarkMapDeleteInt32, 100, 1000, 10000)) b.Run("Int64", runWith(benchmarkMapDeleteInt64, 100, 1000, 10000)) b.Run("Str", runWith(benchmarkMapDeleteStr, 100, 1000, 10000)) + b.Run("Pointer", runWith(benchmarkMapDeletePointer, 100, 1000, 10000)) } func TestDeferDeleteSlow(t *testing.T) { |