Utime and stime stat10/29/2022 ![]() ![]() All of the numbers reported in this file are aggregates since the system first booted. ![]() ![]() P.S I'm dividing these fields by No of Clock ticks in a second in order to calculate system CPU time and User CPU time in seconds as utime and stime are expressed in terms of CPU clock ticks. On Tue, at 08:09, William Lee Irwin III wrote: User space can rely on them because it can check if the data is present. /proc/stat explained Various pieces of information about kernel activity are available in the /proc/stat file. Start a new discussion or ask for help in our Q&A forum. if (ReadFileToString(StringPrintf(/proc/self/task/d/stat, tid). NOTE: Please let me know if I'm evaluating wrong fields for system and user CPU time for a process? Or what is the right way to calculate? char nativethreadstate - int utime, stime, taskcpu - GetTaskStats(t->GetTid(). I validated output of atop command for system and user CPU time but my calculation is coming out wrong. For CPU time consumption in user mode I'm using the formula: (utime/ No of clock ticks) I'm calculating CPU time consumption(in seconds) in system mode using following formula: (stime / No of clock ticks). stime: Amount of time that this process has been scheduled in kernel(system) mode.utime: Amount of time that this process has been scheduled in user mode.There are two fields utime and stime in /proc//stat file, whose documentation says: I want to calculate CPU time consumption of a particular process in system mode and user mode using statistics present in /proc/. ![]()
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