1 // Copyright 2015 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package main 6 7 import "C" 8 import ( 9 "internal/syscall/windows" 10 "runtime" 11 "sync" 12 "syscall" 13 "unsafe" 14 ) 15 16 func init() { 17 register("StackMemory", StackMemory) 18 } 19 20 func getPagefileUsage() (uintptr, error) { 21 p, err := syscall.GetCurrentProcess() 22 if err != nil { 23 return 0, err 24 } 25 var m windows.PROCESS_MEMORY_COUNTERS 26 err = windows.GetProcessMemoryInfo(p, &m, uint32(unsafe.Sizeof(m))) 27 if err != nil { 28 return 0, err 29 } 30 return m.PagefileUsage, nil 31 } 32 33 func StackMemory() { 34 mem1, err := getPagefileUsage() 35 if err != nil { 36 panic(err) 37 } 38 const threadCount = 100 39 var wg sync.WaitGroup 40 for i := 0; i < threadCount; i++ { 41 wg.Add(1) 42 go func() { 43 runtime.LockOSThread() 44 wg.Done() 45 select {} 46 }() 47 } 48 wg.Wait() 49 mem2, err := getPagefileUsage() 50 if err != nil { 51 panic(err) 52 } 53 print((mem2 - mem1) / threadCount) 54 } 55
