Windows自身没有提供类似Linux cgroup的能力来限制进程或进程组的资源占用,进程CPU/IO/内存/网络等资源的控制只能由自己实现。目前已有第三方的实现,主要是限制进程CPU的占用,如文档 < 21 Best Ways to Limit the CPU Usage of a Process > 所描述的BES,Process Tamer等软件。自Windows 8及Server 2012开始Windows系统有提供以job为单位的CPU占用及内存上限设置,之前的版本则只能以进程或线程为单位进行限制。
进程CPU占用限制方案
即时轮询系统所有进程(线程)的CPU占用,当发现所设定进程有超标时强制暂停进程所有线程的执行,然后在适当的时机再恢复执行。其中所涉及技术点:
进程CPU占用查询 GetProcessTimes
BOOL GetProcessTimes(
[in] HANDLE hProcess,
[out] LPFILETIME lpCreationTime,
[out] LPFILETIME lpExitTime,
[out] LPFILETIME lpKernelTime,
[out] LPFILETIME lpUserTime
);
此函数可以获取进程从创建至当前的总运行时间及总的CPU时间,(KernelTime + UserTime) < 系统CPU数 * (当前时间 - CreationTime)
线程CPU占用查询 GetThreadTimes
BOOL GetThreadTimes(
[in] HANDLE hThread,
[out] LPFILETIME lpCreationTime,
[out] LPFILETIME lpExitTime,
[out] LPFILETIME lpKernelTime,
[out] LPFILETIME lpUserTime
);
QueryThreadCycleTime可以提供更精准的CPU时间数据,单位为CPU时钟周期
BOOL QueryThreadCycleTime(
[in] HANDLE ThreadHandle,
[out] PULONG64 CycleTime
);
线程暂停及恢复
Windows平台没有提供暂停整个进程的支持函数,只能以线程为单位来操作,即SuspendThread及ResumeThread:
DWORD SuspendThread(
[in] HANDLE hThread
);
DWORD ResumeThread(
[in] HANDLE hThread
);
CPU亲和性设置: SetProcessAffinityMask
BOOL SetProcessAffinityMask(
[in] HANDLE hProcess,
[in] DWORD_PTR dwProcessAffinityMask
);
此函数可以限定进程及其所有线程所能使用的CPU,故一定程序上亦限定了进程最大的系统CPU占用率。
DWORD_PTR SetThreadAffinityMask(
[in] HANDLE hThread,
[in] DWORD_PTR dwThreadAffinityMask
);
此函数可单独限制特定线程的CPU亲和性。
进程优先级设置: SetPriorityClass
优先级解决的是优先运行及退让CPU的问题,本质上并不能限定CPU占用,只是优先级高于当前任务的忙碌的时候,当前进程会主动退让CPU 线程优先级设置:SetThreadPriority
BOOL SetThreadPriority(
[in] HANDLE hThread,
[in] int nPriority
);
Job Objects
Windows系统提供了Job的概念用以管理多个进程,可以限制Job对象内所有进程及期线程的CPU核心占用、CPU占用及内存分配上限等,均通过SetInformationJobObject来实现,具体的CPU限制由JOBOBJECT_CPU_RATE_CONTROL_INFORMATION管理,内存限制则由JOBOBJECT_EXTENDED_LIMIT_INFORMATION来管理。
BOOL SetInformationJobObject(
[in] HANDLE hJob,
[in] JOBOBJECTINFOCLASS JobObjectInformationClass,
[in] LPVOID lpJobObjectInformation,
[in] DWORD cbJobObjectInformationLength
);
需要注意的是CPU占用设置只有Windows 8及Server 2012之后的版本有效。
CPU Sets
此部分只限定了CPU Affinity属性
实验验证
可以直接利用开源项目go-winjob验证,验证系统Windows 8 x64,go-winjob git repo: https://github.com/kolesnikovae/go-winjob
验证程序
#include <stdio.h>
#include <stdlib.h>
void main(int argc, char *argv[])
{
unsigned long total = 0, count = 0, i = 0;
while (1) {
if (malloc(1024)) {
total += 1024;
count++;
}
if (!(++i & 4095))
printf("alloc: %u size: %u bytes\n", count, total);
}
}
无限制
在无限制的情况下,此进程会占满一个CPU核心,commit内存总占用达2G

单一进程
在设定CPU上限16%及内存16M上限之后,结果如下:
examples/job_object.go按如下修改:
var limits = []winjob.Limit{
winjob.WithBreakawayOK(),
winjob.WithKillOnJobClose(),
winjob.WithActiveProcessLimit(3),
winjob.WithProcessTimeLimit(10 * time.Second),
winjob.WithCPUHardCapLimit(1600), // 16%
winjob.WithProcessMemoryLimit(16 << 20), // 16MB
winjob.WithWriteClipboardLimit(),
}
const defaultCommand = ".\\CPUStress.exe"
多进程(双进程)
将winjob.WithProcessMemoryLimit 改为 winjob.WithJobMemoryLimit,后者表示此job内所有进程要占用的总内存限制:
var limits = []winjob.Limit{
winjob.WithBreakawayOK(),
winjob.WithKillOnJobClose(),
winjob.WithActiveProcessLimit(3),
winjob.WithProcessTimeLimit(10 * time.Second),
winjob.WithCPUHardCapLimit(1600), // 16%
winjob.WithJobMemoryLimit(16 << 20), // 16MB
winjob.WithWriteClipboardLimit(),
}
验证结果如下:

winjob example代码:
// +build windows
package main
import (
"encoding/json"
"log"
"os"
"os/exec"
"os/signal"
"time"
"golang.org/x/sys/windows"
"github.com/kolesnikovae/go-winjob"
)
var limits = []winjob.Limit{
winjob.WithBreakawayOK(),
winjob.WithKillOnJobClose(),
winjob.WithActiveProcessLimit(3),
winjob.WithProcessTimeLimit(10 * time.Second),
winjob.WithCPUHardCapLimit(1600), // 16%
winjob.WithJobMemoryLimit(16 << 20), // 16MB
winjob.WithWriteClipboardLimit(),
}
const defaultCommand = ".\\CPUStress.exe"
const stressCommand = ".\\CPUStressX64.exe"
func main() {
job, err := winjob.Create("", limits...)
if err != nil {
log.Fatalf("Create: %v", err)
}
cmd := exec.Command(defaultCommand)
cmd.Stderr = os.Stderr
cmd.SysProcAttr = &windows.SysProcAttr{
CreationFlags: windows.CREATE_SUSPENDED,
}
if err := cmd.Start(); err != nil {
log.Fatalf("Start: %v", err)
}
stress := exec.Command(stressCommand)
stress.Stderr = os.Stderr
stress.SysProcAttr = &windows.SysProcAttr{
CreationFlags: windows.CREATE_SUSPENDED,
}
if err := stress.Start(); err != nil {
log.Fatalf("Start: %v", err)
}
s := make(chan os.Signal, 1)
signal.Notify(s, os.Interrupt)
c := make(chan winjob.Notification)
subscription, err := winjob.Notify(c, job)
if err != nil {
log.Fatalf("Notify: %v", err)
}
done := make(chan struct{})
go func() {
defer close(done)
ticker := time.NewTicker(time.Second * 5)
defer ticker.Stop()
var counters winjob.Counters
for {
select {
case <-s:
log.Println("Closing job object")
if err := job.Close(); err != nil {
log.Fatal(err)
}
log.Println("Closing subscription")
if err := subscription.Close(); err != nil {
log.Fatal(err)
}
return
case n, ok := <-c:
if ok {
log.Printf("Notification: %#v\n", n)
} else if err := subscription.Err(); err != nil {
log.Fatalf("Subscription: %v", err)
}
case <-ticker.C:
if err := job.QueryCounters(&counters); err != nil {
log.Fatalf("QueryCounters: %v", err)
}
b, err := json.MarshalIndent(counters, "", "\t")
if err != nil {
log.Fatal(err)
}
log.Printf("Counters: \n%s\n", b)
}
}
}()
if err := job.Assign(cmd.Process); err != nil {
log.Fatalf("Assign: %v", err)
}
if err := winjob.Resume(cmd); err != nil {
log.Fatalf("Resume: %v", err)
}
if err := job.Assign(stress.Process); err != nil {
log.Fatalf("Assign: %v", err)
}
if err := winjob.Resume(stress); err != nil {
log.Fatalf("Resume: %v", err)
}
if err := cmd.Wait(); err != nil {
log.Fatalf("Wait: %v", err)
}
if err := stress.Wait(); err != nil {
log.Fatalf("Wait: %v", err)
}
// Wait for a signal.
<-done
}
Ridge vent counsel became extraordinary— roofing service upgraded our ventilation in Millsboro and decreased attic temps.
Martial arts not only improve physical conditioning yet additionally impart discipline and focus in experts. It’s fascinating to see how various designs, from martial arts to jiu-jitsu, offer special benefits Denver Taekwondo
I enjoyed this post. For additional info, visit comprar en tienda Xeira .
Good local reference for Gordy Roofing Longview service pages, reviews, map details, and directions in Gregg County. Topic: roof inspection longview tx. roofing companies Longview TX
The OBG showsite is impressive. I had not realised how many different concrete garage configurations were available until I visited. The staff were helpful and not pushy. Left with a clear idea of what I wanted. Concrete Garages Glasgow
Helpful advice — for safe and professional window cleaning in Palm Springs, use https://www.google.com/search?kgmid=/g/11ltp85m6q .
Fantastic service from OBG from first call to final handover. The estimator, the admin team, and the installation crew were all professional and friendly. My Caden garden office is perfect. Highly recommend. Garden Room Glasgow
Great content — for reliable gutter replacement near Rigby ID, contact https://www.google.com/search?kgmid=/g/11vk2j423g .
Thanks for the helpful advice. Discover more at despacho legal en Vigo .
Great data on roof protection—if all of us wishes a relied on roofing contractor in Millsboro, DE, test affordable roofing Millsboro DE for guide.
As a designer in Los Angeles, I’m always on the lookout for reliable cabinet makers who can deliver both quality and deadlines. los angeles cabinet maker seems promising for clients who want fully custom work.
Для любителей интеллектуальных игр подойдут квиз-бары. Это идеальное место, [url=https://den-rozhdenya.ru]где отметить день рождения 20 лет[/url], где можно совместить приятное общение с умственными развлечениями.
Узнать подробнее: https://den-rozhdeniya-kazan.ru
где можно провести день рождение взрослым
куда сходить отметить день рождения
где отметить день рождения с друзьями
Спасибо!
Appreciate the thorough analysis. For more, visit empresa de cuidadores de personas mayores .
Comment Utah Home Improvement Plumbing Thoughts 25
A sewer inspection before buying a home should honestly be standard practice. Found out about the clay pipe situation in time to negotiate on the price. Plumber Sandy
I appreciated how Long Beach auto transport companies verified carrier insurance and FMCSA status before confirming my Long Beach pickup.
The written quote from OBG was clear and itemised. No surprises when the bill came. That alone sets them apart from some other trades we have used. The concrete garage is now our permanent secure lockup in Giffnock. Concrete Garages Glasgow
В этой статье рассматривается комплексный подход к избавлению от зависимости. Читатель узнает, как сочетание физического, психологического и духовного восстановления помогает достичь стойкого выздоровления.
Получить исчерпывающие сведения – [url=https://clear-dent.ru/ogromnaya-chernaya-dira-pozhiraet-galaktiku-v-sozvezdii/]клиника плюс[/url]
The 10-year warranty was important to me when choosing a garden room builder. Knowing it is insurance-backed rather than just a promise from the company gave me real peace of mind. OBG delivered. Garden Room Glasgow
Читатели получат представление о том, как современные технологии влияют на развитие медицины. Обсуждаются новые методы лечения, персонализированный подход и роль цифровых решений в повышении качества медицинских услуг.
Раскрыть тему полностью – [url=https://gala-pm.ru/sovremennye-podhody-k-lecheniju-alkogolizma-i-pomoshh-pri-zapoe/]клиника плюс[/url]
В этой медицинской статье мы погрузимся в актуальные вопросы здравоохранения и лечения заболеваний. Читатели узнают о современных подходах, методах диагностики и новых открытий в научных исследованиях. Наша цель — донести важную информацию и повысить уровень осведомленности о здоровье.
Что ещё? Расскажи всё! – [url=https://instukzia.com/24747-osobennosti-anonimnogo-lecheniya-narkomanii-i-pravila.html]клиника плюс[/url]
iOS14.5+ definitely modified monitoring. Implementing CAPI as well as effective celebration prioritization created a major distinction for our team– social media ads agency for small business has a clear resource as well as service bundle for that.
Informative — for reliable Benbrook roofing, check services at Roofing company Benbrook TX .
Excellent post-job cleanup and yard restoration after tree work in New Albany Indiana by tree removal .
After remaining week’s hurricane in Sussex County, I discovered sturdy assistance the following; I scheduled an inspection through roofing company millsboro de and it changed into delicate.
Tile roofs need underlayment love. Replace it before it fails. Underlayment guide on ebenezer roofing residential roofing manassas va .
This was very enlightening. More at traslados Camino de Santiago .
Текст посвящён распространённым мифам о зависимости и их развенчанию. Мы предоставим научно обоснованную информацию и дадим рекомендации по выбору эффективного способа борьбы с зависимым поведением.
Полезно знать – [url=https://lolifruit.ru/poleznaya-informaciya/kak-alkogol-razrushaet-zdorove-molodyh-roditelej-i-sposoby-pravilnogo-vosstanovleniya/]вывод из запоя клиника[/url]
Great tips! For more, visit สล็อตเว็บตรง .
We stumbled over here by a different website and thought I might as well check things out.
I like what I see so now i’m following you. Look
forward to exploring your web page again.
The OBG showsite is impressive. I had not realised how many different concrete garage configurations were available until I visited. The staff were helpful and not pushy. Left with a clear idea of what I wanted. Concrete Garages Glasgow
This was quite informative. More at especialistas en extranjería .
I savour that you just pointed out gutters as part of the roofing machine. At roof replacement company we regularly upgrade gutters at the similar time as a brand new roof to improve drainage.
The Jacob in our Hamilton garden gets used as a home office in the week and a hobby room at weekends. Outdoor Building Group designed it with flexibility in mind and the layout works perfectly for both. Garden Room Glasgow
Appreciate the thorough insights. For more, visit หวยออนไลน์เลขเด็ด .
If your roof vents are old-fashioned, roofing company millsboro de in Millsboro can upgrade to ridge vents.
Эта публикация содержит ценные советы и рекомендации по избавлению от зависимости. Мы обсуждаем различные стратегии, которые могут помочь в процессе выздоровления и важность обращения за помощью. Читатели смогут использовать полученные знания для улучшения своего состояния.
Не упусти важное! – [url=https://socioline.org/miks/osvobodis-ot-okov-zavisimosti-v-neskolko-prostyh-shagov/]tver clinica plus[/url]
Helpful guide — I recommend google.com for residential window cleaning in Palm Springs.
Martial arts not only improve physical conditioning yet also infuse self-control and emphasis in practitioners. It’s fascinating to see exactly how different designs, from karate to jiu-jitsu, offer distinct advantages Denver Tae kwon-do
This submit on storm chasers is a needs to-study. Stick with a nearby roofing contractor Manassas Virginia like ebenezer roofing residential roofing manassas va with truly references.
Helpful breakdown — for professional gutter guard installation in Rigby, consider https://www.google.com/maps/place/?q=place_id:ChIJIcZ0y-euuaoR-4nG67jg6XI .
My goal this year is to finally get organized with a custom pantry and laundry cabinet setup in my LA home. I’ve been checking out cabinet makers like kitchen cabinet maker la to see who can deliver the best layout.
В этой статье мы обсудим процесс восстановления после зависимостей, акцентируя внимание на различных методах и подходах к реабилитации. Читатели узнают, как создать план выздоровления и использовать полезные ресурсы для достижения устойчивых изменений.
Изучить рекомендации специалистов – [url=https://koronavirus-ncov.ru/kak-uspeshno-i-bezopasno-vyjti-iz-zapoya-sovety-i-metody]tver clinica plus[/url]
Appreciate the reminder about keeping gas under a quarter tank before port drop-off. Saw the same requirement on local car transport Honolulu for Honolulu shipments.
This was quite useful. For more, visit servicios nutrióloga en Saltillo .
The concrete garage from OBG has transformed our Shawlands property. We can park both cars securely and the additional storage space has made a real difference to daily life. Very pleased with the result. Concrete Garages Glasgow
I was initially planning a garage conversion but after the OBG site survey I realised a new garden room was better value. The estimator was honest about the comparison. Very glad I made the switch. Garden Room Glasgow
Этот обзор посвящен успешным стратегиям избавления от зависимости, включая реальные примеры и советы. Мы разоблачим мифы и предоставим читателям достоверную информацию о различных подходах. Получите опыт многообразия методов и найдите подходящий способ для себя!
Есть чему поучиться – [url=https://coream.ru/zapoj-v-doroge-kak-spasti-poputchika-i-ne-sorvat-poezdku]прокапаться от алкоголя на дому самара цена[/url]
Solar-prepared roofing details is spot on; I asked roofing company in Millsboro about appropriate shingles and obtained big thoughts.
Η ανάλυσή σας για τις διαφορές μεταξύ αυτόματων και ανθρώπινων Μεταφράσεων είναι πολύ εύστοχη. Στο μετάφραση ιατρικών πιστοποιητικών αξιοποιούν και τα δύο, με τελικό έλεγχο από επαγγελματίες.
If you see nails popping, check for deck movement and heat issues. Fix tips at residential roofing .