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47 lines
608 B
Go
47 lines
608 B
Go
//go:build ignore
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// +build ignore
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package main
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import (
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"fmt"
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"os"
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"runtime"
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"runtime/pprof"
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"time"
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)
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func main() {
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file, _ := os.Create("./memory-profiler.pprof")
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defer pprof.Lookup("allocs").WriteTo(file, 0)
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defer runtime.GC()
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go allocSmall()
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go allocBig()
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time.Sleep(1 * time.Second)
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var m runtime.MemStats
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runtime.ReadMemStats(&m)
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fmt.Printf("%#v\n", m)
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}
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//go:noinline
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func allocSmall() {
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for i := 0; ; i++ {
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_ = alloc(32)
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}
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}
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//go:noinline
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func allocBig() {
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for i := 0; ; i++ {
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_ = alloc(256)
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}
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}
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//go:noinline
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func alloc(size int) []byte {
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return make([]byte, size)
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}
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