Home > Cpu Usage > Getprocesstimes Example

Getprocesstimes Example


In order to save others from going through the same trouble, I thought it would be a good idea to collect all the scattered information plus what I found by trial This documentation is archived and is not being maintained. That said, to measure CPU time on Windows, I have this helper class (which is inevitably non-portable): class ProcessorTimer { public: ProcessorTimer() { start(); } void start() { ::GetProcessTimes(::GetCurrentProcess(), &ft_[3], &ft_[2], Armed with this information, we can calculate the CPU usage for the current process (or any arbitrary process, for that matter).

But that simply doesn't seem to be true: Gui, Add, ListView, x2 y0 w400 h500, Name|PID|CPU for process in ComObjGet("winmgmts:").ExecQuery("Select * from Win32_Process") LV_Add("", process.Name, process.processId,"...") Gui, Show,, Process List SetTimer, Can you please help Ben? Related 22Write code to make CPU usage display a sine wave5Is there a way to see how much CPU usage per core a process is using?2How is CPU usage computed?1Average CPU Is that actually the case here? –Edgar Aroutiounian Dec 24 '14 at 23:49 @EdgarAroutiounian The vm system manages the memory, so that's why you query it. this content

Getprocesstimes Example

When I finally checked the kernel sources themselves, I found out that apparently these APIs are not yet completely implemented as of Linux kernel 2.6!? physMemUsed *= memInfo.mem_unit; Physical Memory currently used by current process: Change getValue() in "Virtual Memory currently used by current process" as follows: int getValue(){ //Note: this value is in KB! Some machines don't have perf counters installed correctly so this is great! Let’s do it first in C++ to demonstrate usage of the APIs.

Is there a quick fix for that? A script sample is found here. lpCreationTime [out] A pointer to a FILETIME structure that receives the creation time of the process. Queryprocesscycletime Are people of Nordic Nations "happier, healthier" with "a higher standard of living overall than Americans"?

I'm not a big fan of the text file format used, as each Linux distribution seems to customize at least one important file. What would be your next deduction in this game of Minesweeper? Here's my code: auto processTime() -> quint64 // process time in usec { ULARGE_INTEGER creation, exit, kernel, user; if (!GetProcessTimes(d->proc, (LPFILETIME)&creation.u, (LPFILETIME)&exit.u, (LPFILETIME)&kernel.u, (LPFILETIME)&user.u)) return 0; return (kernel.QuadPart + user.QuadPart)/10; } For me it now returned a value for every process (but the System Idle process).

CPU used by your process is available in /proc/self/stat. C# Get Current Cpu Usage There's also QueryProcessCycleTime, which will tell you the total number of CPU clock cycles used by the process (total of both user and kernel mode in all threads). Thanks for that! Where can I report criminal intent found on the dark web?

C++ Get Cpu Usage Linux

If the system was idle, it would divide by zero. http://stackoverflow.com/questions/29492100/calculate-average-cpu-usage-per-core-using-getprocesstimes-getsystemtimes Cheers. #13 - Posted 29 August 2014 - 01:06 AM Back to top Back to Ask for Help Reply to quoted postsClear AutoHotkey Community → AutoHotkey → Ask for Help Getprocesstimes Example Remarks All times are expressed using FILETIME data structures. Getsystemtimes Total Virtual Memory: #include "sys/types.h" #include "sys/sysinfo.h" struct sysinfo memInfo; sysinfo (&memInfo); long long totalVirtualMem = memInfo.totalram; //Add other values in next statement to avoid int overflow on right hand side...

Thanks!! Regards, Deekshit Ben Post authorMarch 6, 2009 at 12:15 pm I think you have the right idea with the array. The following is what I have so far. Total Virtual Memory: #include "windows.h" MEMORYSTATUSEX memInfo; memInfo.dwLength = sizeof(MEMORYSTATUSEX); GlobalMemoryStatusEx(&memInfo); DWORDLONG totalVirtualMem = memInfo.ullTotalPageFile; Note: The name "TotalPageFile" is a bit misleading here. C# Get Cpu Usage Of Process

Visit site GoodReads Follow me on Twitter Tweets by @benmwatson Recent Posts Don’t Make This Dumb Locking Mistake Free Kindle version of Writing High-Performance .NET Code when you buy the print Here's an entry from Apple's documentation: Note: Unlike most Unix-based operating systems, Mac OS X does not use a preallocated swap partition for virtual memory. Can you please help me out? -Deekshit Deekshit March 6, 2009 at 4:00 am CpuUsage[] usage = new CpuUsage[nProcs]; Is this what you are referring to Ben? Circular Array Rotation Does every data type just boil down to nodes with pointers?

Contents of table bigger than the rest of the text and also not centered Output N in base -10 more hot questions question feed lang-cpp about us tour help blog chat C# Get Cpu Usage Of Current Process Philosophical Geek Code and musings by Ben Watson Menu Skip to content Home About Me Writing High-Performance .NET Code Software DiskSlicer Music Resume Determine CPU usage of current process (C++ and Comments containing abusive language, profanity, or are wildly off-topic will not be approved.


The sample driver program now demos using multiple threads using the CpuUsage class to show thread safety. For example, if a process has spent one second in kernel mode, this function will fill the FILETIME structure specified by lpKernelTime with a 64-bit value of ten million. percent = -1.0; } else{ total = (totalUser - lastTotalUser) + (totalUserLow - lastTotalUserLow) + (totalSys - lastTotalSys); percent = total; total += (totalIdle - lastTotalIdle); percent /= total; percent *= C++ Getprocessmemoryinfo For me it now returned a value for every process (but the System Idle process).

Since it wasn't here, I went out and dug it up myself. Just skip this value. With regards to it working for most processes, it may depend on the desiredAccess parameter in the openProcess() call in getProcessTimes(). If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site.Would you like to participate?

You may have to register before you can post: click the register link above to proceed. In case the idle time was equal to the user+kernel time, it would produce 0 rather than 50% as one would expect. –Andrei Belogortseff Dec 31 '16 at 17:46 Forum Today's Posts C and C++ FAQ Forum Actions Mark Forums Read Quick Links View Forum Leaders What's New? VmRss is the amount of memory that have been mapped into the process' address space, or its resident set size.

Round(perc%j%, 2) " % " : "" } loop, Parse, DrvLstNtwrk { k := A_LoopField DriveGet, cap%k%, Capacity, %k%:\ DriveSpaceFree, free%k%, %k%:\ used%k% := cap%k% - free%k% perc%k% := used%k% / I thought there was some kind of problem in Visual C++ on Windows 7 so that time.h functions were not providing any way to measure CPU time but only elapsed real Meta Log in Entries RSS Comments RSS WordPress.org Proudly powered by WordPress Sign in Gallery MSDN Library Forums Get started for free Ask a question Quick access Forums home Browse forums Here is the complete implementation: 1: #include "StdAfx.h" 2: #include 3: #include "CpuUsage.h" 4: 5: CpuUsage::CpuUsage(void) 6: :m_nCpuUsage(-1) 7: ,m_dwLastRun(0) 8: ,m_lRunCount(0) 9: { 10: ZeroMemory(&m_ftPrevSysKernel, sizeof(FILETIME)); 11: ZeroMemory(&m_ftPrevSysUser, sizeof(FILETIME));

What do you think about the solution proposed by @Clark, using clock() function?? –Vicent Sep 26 '12 at 17:21 @Vicent It depends what you want to measure –James Sep Did Joseph Smith “translate the Book of Mormon”? Is the use of username/password in a mobile app needed? Adam taylor May 31, 2012 at 10:11 am hi every body.

To do this, count the number of 'cpuN' entries, where N starts at 0 and increments. Erkki Salonen February 2, 2015 at 9:43 am This is good example! If the process has not exited, the content of this structure is undefined.