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
}
קיבלתי שירות ברמה שלא ראיתי. עוד ב- ייעוץ משכנתאות
The LFA 235 event arrives with that precise unpredictable vibe, delivering a event wherein weight class rankings are poised for destruction and professional destinies will be decided in fifteen-minute segments.
Nothing beats the aroma of street food wafting through a crowd. Discover amazing vans at Catering Vans for Festivals !
Этот текст представляет собой обзор свежих данных и исследований в области медицины. Он призван помочь читателям понять, как научные достижения влияют на лечение, диагностику и общее состояние системы здравоохранения.
Что ещё нужно знать? – [url=http://medobook.ru/load/medicina/stati/priznaki_professionalizma_narkologa/49-1-0-6518]вызвать нарколога на дом[/url]
Renovation demo creates so much debris; Sydney NSW waste removal sydney made disposal simple.
Love all the natural solutions you’ve shared; they’re not only effective but also safe for our environment—check out more helpful content at drain cleaning !
Love seeing families bond over home projects like restoring their flooring together—such cherished memories created! Commercial Floor Restoration
Клининговые услуги в москве
Thanks for the great advice on brushing techniques; it has really improved my oral health routine! Dental Implants
This was a great article. Check out carpet clenaing service in napa for more.
В данном материале представлены ключевые тенденции в сфере медицинской науки и практики. Вы узнаете о последних открытиях, инновационных подходах к терапии и важности профилактики заболеваний. Особое внимание уделено практическому применению новых методов в клинической практике.
Выяснить больше – [url=https://coollib.in/node/580813]vladimir detox24[/url]
Great tips on maintaining oral hygiene while wearing braces; these are essential reminders for those of us living near or around **Dunfermline** now more than ever before!! Invisible Braces
If you’re looking for a reliable Plumber Feasterville for same-day leak repairs, check out plumber feasterville for fast service and honest pricing.
For straightforward-smooth dining chairs, the performance fabric at Best Mattresses Santa Cruz are a win.
The vibe that street food brings to an event is unbeatable; check out your options with Catering Vans for Concerts .
Trying to tackle a clogged drain myself was quite the adventure; I learned my lesson to call in experts next time! Find help at emergency drain unblocking .
The process of restoring vintage floors sounds fascinating! I’d love to learn more about it! Commercial Floor Restoration
Anyone else feel like talking with their dentist is super helpful in learning more about oral care?? Love that relationship!! Dental Centre
view it now https://tokvideodownloader.click/fr/
Discovering new options for orthodontics in Dunfermline has been eye-opening! Teeth Retainers
If you’re attempting to find a legitimate vehicle dealership in Gainesville, FL, confirm to examine inventory, financing strategies, and after-revenues provider. I’ve found out that transparency on pricing and vehicle records makes your complete change have a peek at these guys
Публикация знакомит читателей с различными подходами к реабилитации. От традиционных методов до современных программ — вы узнаете, как выбрать оптимальный путь к выздоровлению и преодолеть препятствия на этом пути.
Уникальные данные только сегодня – [url=https://happyformat.ru/stati/kapelnitsa-ot-pohmelya-v-balashihe-anonimno-na-domu-i-v-statsionare-bystroe-reshenie-dlya-vosstanovleniya.html]clinica plus[/url]
Great submit! A lot of humans don’t become aware of abandoned RVs can leak fluids and turn into an environmental probability. The Free RV Removal Program no longer simply clears house yet also ensures good recycling and disposal More Bonuses
why not check here https://tokvideodownloader.click/fr/
That CO safety checklist is essential. I booked a full combustion test with Charlotte, NC furnace charlotte .
Great insights on keeping cool during LA’s heat waves! In a city where summer temps can spike and older buildings struggle with airflow, having a reliable HVAC plan is everything Visit Website
I realise the reminder approximately permitting and inspections. Too many parents pass that step and pay for it later Bonuses
Sicher Wetten Sportwetten
lizenz schleswig holstein
פתרונות למחזורים גם עם קנסות יציאה – ייעוץ להבראה כלכלית .
Этот текст представляет собой обзор свежих данных и исследований в области медицины. Он призван помочь читателям понять, как научные достижения влияют на лечение, диагностику и общее состояние системы здравоохранения.
Получить больше информации – [url=https://demetra-tmn.ru/tsentr-narkologii/]клиника плюс борисоглебск[/url]
Acabou de bater! o dobro da banca no Bikini Paradise. Gestão é tudo.
Got an after-hours emergency? licensed air conditioning repair offers 24/7 AC repair Tampa services.
Thanks for the clear breakdown. More info at graham upholstery cleaning .
I recently attended an event with a street food van and it was a hit! I recommend checking out Street Food Van Hire for great choices.
Had Sacramento Precision HVAC Repair out to our Sacramento property for HVAC Repair assessment. Unlike other companies that tried to create urgency, they gave us an honest timeline and priority list. Refreshing honesty from a Sacramento contractor. hvac maintenance near me
This is excellent information! Avoiding chemical cleaners is smart, and I love natural alternatives. Find out more at drain unblocking near me .
I would like more information regarding color matching stains during refinishing projects as it can be tricky sometimes. Office Floor Restoration
Kids’ dental health is vital; let’s make sure they start off on the right foot!!! Barnsley Dentist
So glad to see discussions around mental health benefits related to having braces—important topic for us all here in Dunfermline! Invisible Braces
В этой статье мы рассматриваем разрушительное влияние зависимости на жизнь человека. Обсуждаются аспекты, такие как здоровье, отношения и профессиональные достижения. Читатели узнают о необходимости обращения за помощью и о путях к восстановлению.
Перейти к статье – [url=https://poleznye-svoistva.ru/kodirovanie-ot-alkogolizma-obzor-metodov-i-ih-primenenie/]alco rehab в смоленске[/url]
לקחנו משכנתא לגיל השלישי דרך יועץ משכנתאות פרטי והשירות היה יוצא מן הכלל, מהרגע הראשון הרגשנו בידיים טובות.
UFC
Be real half the entertainment of wagering on developmental MMA cards like LFA 235 is rummaging around in the chaotic jumble of lines the line setters present us with.
Danke für den Artikel. Ich achte bei der Wahl eines Online-Casinos immer besonders darauf, ob eine Lizenz aus der EU vorliegt. Das gibt mir ein deutlich sichereres Gefühl, bevor ich dort spiele https://www.mediafire.com/file/o3kfcvmia2m0y6e/pdf-98556-3590.pdf/file
Can’t wait to see what gourmet options are available at my next event with the help of Street Food Van Hire !
Ich nutze mein VPN hauptsächlich, um bei Netflix auf das japanische Programm zuzugreifen. Das klappt meistens gut, aber manchmal sinkt die Geschwindigkeit beim Streamen doch deutlich ab, wenn ich den Server wechsle Klicken Sie hier für Informationen
Preventing drain issues starts with what we put down them. Always be cautious! More prevention tips at cctv drain survey .
Floor restoration not only enhances beauty but also increases property value. Great point! Commercial Floor Restoration
Das mit den Content Clustern für Casinoohneoasis klingt sehr durchdacht. Viele Seiten jagen nur kurzfristig Rankings, aber die thematische Tiefe wirkt hier wirklich nachhaltiger Weitere hilfreiche Tipps
Ich finde die Diskussion über Freiheit und Regulierung wirklich spannend. In der Mobilität brauchen wir Sicherheit, aber zu viele Regeln bremsen oft die Innovation. Im digitalen Bereich sieht es ähnlich aus grenzüberschreitende aufsicht glücksspiel eu
Flossing is so crucial! I used to skip it, but my dentist educated me on its importance. Invisible Braces