71 lines
1.4 KiB
Go
71 lines
1.4 KiB
Go
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// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"internal/syscall/windows"
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"runtime"
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"sync"
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"syscall"
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"unsafe"
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)
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func init() {
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register("RaiseException", RaiseException)
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register("ZeroDivisionException", ZeroDivisionException)
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register("StackMemory", StackMemory)
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}
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func RaiseException() {
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const EXCEPTION_NONCONTINUABLE = 1
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mod := syscall.MustLoadDLL("kernel32.dll")
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proc := mod.MustFindProc("RaiseException")
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proc.Call(0xbad, EXCEPTION_NONCONTINUABLE, 0, 0)
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println("RaiseException should not return")
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}
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func ZeroDivisionException() {
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x := 1
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y := 0
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z := x / y
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println(z)
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}
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func getPagefileUsage() (uintptr, error) {
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p, err := syscall.GetCurrentProcess()
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if err != nil {
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return 0, err
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}
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var m windows.PROCESS_MEMORY_COUNTERS
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err = windows.GetProcessMemoryInfo(p, &m, uint32(unsafe.Sizeof(m)))
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if err != nil {
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return 0, err
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}
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return m.PagefileUsage, nil
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}
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func StackMemory() {
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mem1, err := getPagefileUsage()
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if err != nil {
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panic(err)
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}
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const threadCount = 100
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var wg sync.WaitGroup
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for i := 0; i < threadCount; i++ {
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wg.Add(1)
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go func() {
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runtime.LockOSThread()
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wg.Done()
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select {}
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}()
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}
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wg.Wait()
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mem2, err := getPagefileUsage()
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if err != nil {
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panic(err)
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}
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print((mem2 - mem1) / threadCount)
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}
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