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Following was my reply for you (and other people like you).-------------------------------------------------------------------------In my previous message also, i asked you the meanings of these words.I don't know what you mean by these words Skip to main content Follow UsNews Holy cow, I wrote a book Basics Archives Ground Rules Suggestion Box Contact Me Disclaimers and such CategoriesCode Non-Computer Other History Tips/Support Microspeak Dream email If you measure the time between calls to "GetThreadTimes" and store the previous user and/or kernel times then you know how much time the thread has had since you last checked. But even then a thread is CPU hungry, you will notice, even after assigning it the lowest priority, it consumes almost all the CPU. (And i don't have any answer for

m_lastTotalSystemTime.QuadPart = thissystime.QuadPart; m_lastThreadUsageTime.QuadPart = thisthreadtime.QuadPart; m_lastThreadName = Thread.CurrentThread.Name; return true; } } Sign In·ViewThread·Permalink Re: C# Version Lone Developer30-May-11 12:48 Lone Developer30-May-11 12:48 HiThank you posting the C# version.It and if you measure only 20 msyour result is badly wrong (or diffuse)...See: QueryPerformanceCounterhttp://msdn.microsoft.com/library/en-us/winui/WinUI/WindowsUserInterface/Windowing/Timers/TimerReference/TimerFuPost by Jochen Kalmbachnctions/QueryPerformanceCounter.asp--GreetingsJochenMy blog about Win32 and .NEThttp://blog.kalmbachnet.de/ Jochen Kalmbach 2004-10-20 11:26:47 UTC PermalinkRaw Message Hi youhua.wang,Post I know that Sysinternals Process Explorer can display this information, but I need this information inside my program. Contact us now Copyright © 2000 - 2016, PT.


This leads to the conculsion, that GetThreadTimes will only produce correct values, if each thread would consume all of its quantum (or at least for the whole time-slice)! In your example, the calculation thread kept releasing its quantum, so it wasn't actually running the whole time. Some background To verify this statement, we need to know, how GetThreadTimes is working.

Top Realcool Topic Author Posts: 8 OS: Windows 7 64-bit Re: Show cpu usage for child services Quote #7 Wed Jul 27, 2011 5:03 am wj32 wrote:Realcool wrote:Is this "No" Are the guns on a fighter jet fixed or can they be aimed? I have seen this in tests where the value returned is either 0or is the same value returned consistently.The performance counter Thread %Processor Time is basically what I am tryingto obtain Getsystemtimes Application Lifecycle> Running a Business Sales / Marketing Collaboration / Beta Testing Work Issues Design and Architecture ASP.NET JavaScript C / C++ / MFC> ATL / WTL / STL Managed C++/CLI

This app is written in C++ and is not using .net Framework.Yes, the basic API is GetThreadTimes.What do you hope to do with this information?--Tim Roberts, ***@probo.comProvidenza & Boekelheide, Inc. Getthreadtimes C# I have the thread ID. node historyNode Type: snippet [id://378447]help Chatterbox? and all is quiet... c++ delphi winapi multithreading cpu-usage share|improve this question asked Sep 8 '09 at 9:40 Dirk Paessler 1,67031312 add a comment| 5 Answers 5 active oldest votes up vote 18 down vote

Sign In·ViewThread·Permalink Portable version berserker_r28-Aug-08 2:34 berserker_r28-Aug-08 2:34 Good job What about a portable version[^]? C++ Get Cpu Usage Windows Solving proportions with 3 ratios, x:3:y = -2:3:-4 Equation system with two unknown variables What is this metal rail in the basement ceiling How did Adebisi make his hat hang on Sign In·ViewThread·Permalink Re: OK - But pwasser20-Apr-09 18:17 pwasser20-Apr-09 18:17 Not strictly true - check timeGetDevCaps.Sleep was never intended as a timing mechanism. if (thisthreadtime.QuadPart != 0 && (((thisthreadtime.QuadPart - m_lastThreadUsageTime.QuadPart) * 100) - ((thissystime.QuadPart - m_lastTotalSystemTime.QuadPart) * m_maxCPU)) > 0) { //Calculate the time interval to sleep for averaging the extra CPU usage

Getthreadtimes C#

Career News Article The counters on different CPUs can be all around the place and still the total count will be accurate. Querythreadcycletime Search Comments Spacing RelaxedCompactTight Layout NormalOpen TopicsOpen AllThread View Per page 102550 First PrevNext Class library version jibrownie18-Jun-12 13:36 jibrownie18-Jun-12 13:36 I was wondering if you could post a Getthreadtimes Example C++ Or any tips on performance tuning ?Thanks!youhua.wang Erick 2004-10-20 17:23:05 UTC PermalinkRaw Message I have done measurements of the accuracy of the timer.

All brand and logo copyrights are owned by the respective owners. but have read that GetThreadTimes() does not always return validinformation. QueryPerformanceCounter(&liStart); DWORD cnt = internalCounter; while(cnt != 0) cnt++; QueryPerformanceCounter(&liEnd); QueryPerformanceFrequency(&liFreq); double ms = ((double) (liEnd.QuadPart-liStart.QuadPart) * 1000) / (double)liFreq.QuadPart; printf("Inc duration: %.3f msnn", ms); // test-end DWORD id; HANDLE hThread[ Fortunately, there is. Thread Cpu Time C#

To be sure that the scheduler will not reschedule our thread immediately, we need a second thread which must be ready-to-run all the time (and the times are now counted to and Why GetThreadTimes is wrong share|improve this answer edited Nov 23 '10 at 13:55 answered Nov 19 '09 at 12:49 lsalamon 5,41843251 3 Apparently in Vista+ you can call QueryThreadCycleTime If you want to display what CPU portion the thread has recently consumed, sample GetThreadTimes every second, then compute (usedtimenow - usedtimeprevious) / (now - previous) / numberofcpus If you sample threadTimesStr() ); return; } my @threads = map{ threads->new( \&thread ) } 1 .. 10; $_->join for @threads; print $Q->dequeue while $Q->pending; Comment on Per thread cpu usage for Win32,Download Code

We can achieve this by doing a very short calculation (for example 2 ms) and the call "Sleep(1)", which will apruptly end our qunatum and will reschedule or thread the next Getprocesstimes CPULimiter limiter = 5; History 27th August, 2008: Initial post License This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL) Share Sign In·ViewThread·Permalink Oh Boy MrGoodly6-Sep-08 7:46 MrGoodly6-Sep-08 7:46 Miss Lone Developer;You actually took the time to write so much crap.

What about letting the OS do something using thread priorities?2.

But longer test timeis a way.Post by Jochen KalmbachHi youhua.wang,Post by youhua.wangDWORD dwTick1 =GetTickCount();To measure code you should either use "QueryPerformanceCounter/Frequency"or use a longer running test (>10 seconds).GetTickCount has a resolution Window's thread prioritisation is a total POS - in my experience, a difference in thread priority of only 1 and you will be lucky to get an execution ratio of 10:1.Lone Is it rude to use tracking softwares for the emails that you send to potential advisors? Getrusage Here is the structure of CPULimiter class: const int DEFAULT_MAX_PERCENTAGE = 20; /* CPULimiter: This class helps to limit the CPU usage/consumption by a thread involving some kind of repetitive/polling kind

otstrel says: October 21, 2016 at 8:41 am Funny coincidence, I've been looking into the very same problem earlier today and found another bit of information that may be useful: http://blog.kalmbachnet.de/?postid=28 But even then a thread is CPU hungry, you will notice, even after assigning it the lowest priority, it consumes almost all the CPU. (And i don't have any answer for You make no mention of the granularity of Sleep() in relation to timer ticks. Sign In·ViewThread·Permalink Re: OK - But pwasser7-Sep-08 16:52 pwasser7-Sep-08 16:52 Hawk777 wrote:What you have done in your code is throttling, which is quite different to prioritization (and is useful in

Top Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending Post Reply Print view Who is online Users browsing this forum: No What do you mean by "Pan Shode"? When the calculated Sleep() is less than 1ms you are still in a polling loop.3. They do not give you enough control, this class makes life much easier.

MCA Feed. perl -slw use strict; use threads; use Thread::Queue; use Win32::API::Prototype; ApiLink( 'Kernel32', 'HANDLE GetCurrentThread(void)' ) or die $^E; ApiLink( 'Kernel32', 'BOOL GetThreadTimes( HANDLE hThread, LPFILETIME lpCreationTime, LPFILETIME lpExitTime, LPFILETIME lpKernelTime, LPFILETIME microsoft.public.win32.programmer.kernel Discussion: Help! Note: In some cases, Stop is disabled for some service, is possible add a "Kill" button to force the stopping of the service?I attach screenshot about tab I'm talking.

So this thread would spend most of its time in Bitblt and this will continuously keeps the CPU busy, making other processes starve for CPU. The Sleep() solution might be ok, but is not the right one, as with Sleep() we cannot control the bandwidth of processing power allocated to that thread. More investigation If you dig deeper into the kernel, you find out, that in the timer- (or scheduler-) interrupt (normally every 10/15 ms), the increment of the thread-time values in the raymond blogs.

However, nothing in the operating system tracksthread CPU usage to any finer degree.Post by CNielsenThe performance counter Thread %Processor Time is basically what I am tryingto obtain but I am not kernel32.dll Internally GetThreadTimes calls NtQueryInformationThread with ThreadTimes. Attachments Process Properties : Services Top wj32 Posts: 948 OS: Windows Location: Australia Contact: Contact wj32 Website Re: Show cpu usage for child services Quote #4 Sat May 14, But i am confused now.

Fortunately, there is.