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Commit 583f7243 authored by Rob Pike's avatar Rob Pike
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fmt: call UpdateMemStats in malloc counter 

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4830059
parent bb8e36b4
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src/pkg/fmt/fmt_test.go
View file @ 583f7243
...@@ -477,28 +477,36 @@ func TestCountMallocs(t *testing.T) { ...@@ -477,28 +477,36 @@ func TestCountMallocs(t *testing.T) {
if testing.Short() { if testing.Short() {
return return
} }
runtime.UpdateMemStats()
mallocs := 0 - runtime.MemStats.Mallocs mallocs := 0 - runtime.MemStats.Mallocs
for i := 0; i < 100; i++ { for i := 0; i < 100; i++ {
Sprintf("") Sprintf("")
} }
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs mallocs += runtime.MemStats.Mallocs
Printf("mallocs per Sprintf(\"\"): %d\n", mallocs/100) Printf("mallocs per Sprintf(\"\"): %d\n", mallocs/100)
runtime.UpdateMemStats()
mallocs = 0 - runtime.MemStats.Mallocs mallocs = 0 - runtime.MemStats.Mallocs
for i := 0; i < 100; i++ { for i := 0; i < 100; i++ {
Sprintf("xxx") Sprintf("xxx")
} }
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs mallocs += runtime.MemStats.Mallocs
Printf("mallocs per Sprintf(\"xxx\"): %d\n", mallocs/100) Printf("mallocs per Sprintf(\"xxx\"): %d\n", mallocs/100)
runtime.UpdateMemStats()
mallocs = 0 - runtime.MemStats.Mallocs mallocs = 0 - runtime.MemStats.Mallocs
for i := 0; i < 100; i++ { for i := 0; i < 100; i++ {
Sprintf("%x", i) Sprintf("%x", i)
} }
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs mallocs += runtime.MemStats.Mallocs
Printf("mallocs per Sprintf(\"%%x\"): %d\n", mallocs/100) Printf("mallocs per Sprintf(\"%%x\"): %d\n", mallocs/100)
runtime.UpdateMemStats()
mallocs = 0 - runtime.MemStats.Mallocs mallocs = 0 - runtime.MemStats.Mallocs
for i := 0; i < 100; i++ { for i := 0; i < 100; i++ {
Sprintf("%x %x", i, i) Sprintf("%x %x", i, i)
} }
runtime.UpdateMemStats()
mallocs += runtime.MemStats.Mallocs mallocs += runtime.MemStats.Mallocs
Printf("mallocs per Sprintf(\"%%x %%x\"): %d\n", mallocs/100) Printf("mallocs per Sprintf(\"%%x %%x\"): %d\n", mallocs/100)
} }
......
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