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vm: embed reference counter in compound items

Browse source 
```
name              old time/op  new time/op  delta
RefCounter_Add-8  44.8ns ± 4%  11.7ns ± 3%  -73.94%  (p=0.000 n=10+10)
```

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
This commit is contained in:
Evgeniy Stratonikov 2021-08-11 15:16:29 +03:00
parent dc9287bf5c
commit 4f98ec2f53
7 changed files with 99 additions and 55 deletions
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24
pkg/vm/ref_counter_test.go
View file

@ -10,24 +10,34 @@ import (
func TestRefCounter_Add(t *testing.T) {
r := newRefCounter()
require.Equal(t, 0, r.size)
require.Equal(t, 0, int(*r))
r.Add(stackitem.Null{})
require.Equal(t, 1, r.size)
require.Equal(t, 1, int(*r))
r.Add(stackitem.Null{})
require.Equal(t, 2, r.size) // count scalar items twice
require.Equal(t, 2, int(*r)) // count scalar items twice
arr := stackitem.NewArray([]stackitem.Item{stackitem.NewByteArray([]byte{1}), stackitem.NewBool(false)})
r.Add(arr)
require.Equal(t, 5, r.size) // array + 2 elements
require.Equal(t, 5, int(*r)) // array + 2 elements
r.Add(arr)
require.Equal(t, 6, r.size) // count only array
require.Equal(t, 6, int(*r)) // count only array
r.Remove(arr)
require.Equal(t, 5, r.size)
require.Equal(t, 5, int(*r))
r.Remove(arr)
require.Equal(t, 2, r.size)
require.Equal(t, 2, int(*r))
}
func BenchmarkRefCounter_Add(b *testing.B) {
a := stackitem.NewArray(nil)
rc := newRefCounter()
b.ResetTimer()
for i := 0; i < b.N; i++ {
rc.Add(a)
}
}