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gob: add UpdateMemStats calls to malloc counter

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R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4808071
This commit is contained in:
Rob Pike 2011-08-04 15:56:25 +10:00
parent ee9168d507
commit 19e80b0818
2 changed files with 5 additions and 1 deletions
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2
src/pkg/gob/encode.go
View File

@ -484,7 +484,7 @@ func isZero(val reflect.Value) bool {
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return val.Uint() == 0 return val.Uint() == 0
} }
panic("unknown type in isZero" + val.Type().String()) panic("unknown type in isZero " + val.Type().String())
} }
// encGobEncoder encodes a value that implements the GobEncoder interface. // encGobEncoder encodes a value that implements the GobEncoder interface.

4
src/pkg/gob/timing_test.go
View File

@ -53,6 +53,7 @@ func TestCountEncodeMallocs(t *testing.T) {
var buf bytes.Buffer var buf bytes.Buffer
enc := NewEncoder(&buf) enc := NewEncoder(&buf)
bench := &Bench{7, 3.2, "now is the time", []byte("for all good men")} bench := &Bench{7, 3.2, "now is the time", []byte("for all good men")}
runtime.UpdateMemStats()
mallocs := 0 - runtime.MemStats.Mallocs mallocs := 0 - runtime.MemStats.Mallocs
const count = 1000 const count = 1000
for i := 0; i < count; i++ { for i := 0; i < count; i++ {
@ -61,6 +62,7 @@ func TestCountEncodeMallocs(t *testing.T) {
t.Fatal("encode:", err) t.Fatal("encode:", err)
} }
} }
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs mallocs += runtime.MemStats.Mallocs
fmt.Printf("mallocs per encode of type Bench: %d\n", mallocs/count) fmt.Printf("mallocs per encode of type Bench: %d\n", mallocs/count)
} }
@ -77,6 +79,7 @@ func TestCountDecodeMallocs(t *testing.T) {
} }
} }
dec := NewDecoder(&buf) dec := NewDecoder(&buf)
runtime.UpdateMemStats()
mallocs := 0 - runtime.MemStats.Mallocs mallocs := 0 - runtime.MemStats.Mallocs
for i := 0; i < count; i++ { for i := 0; i < count; i++ {
*bench = Bench{} *bench = Bench{}
@ -85,6 +88,7 @@ func TestCountDecodeMallocs(t *testing.T) {
t.Fatal("decode:", err) t.Fatal("decode:", err)
} }
} }
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs mallocs += runtime.MemStats.Mallocs
fmt.Printf("mallocs per decode of type Bench: %d\n", mallocs/count) fmt.Printf("mallocs per decode of type Bench: %d\n", mallocs/count)
} }