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/proc/pid/stat Fields


To employ /proc/[pid]/pagemap efficiently, use /proc/[pid]/maps to determine which areas of memory are actually mapped and seek to skip over unmapped regions. Thanks and regards, Andrei ajucan View Public Profile View LQ Blog View Review Entries View HCL Entries View LQ Wiki Contributions Visit ajucan's homepage! OS: CentOS 6.5 Python**: 2.6.6 Next - it calculates % of CPU, taken by this process: #!/usr/bin/env python import sys import os import time import subprocess if len(sys.argv) == 2: pid Does anyone know what that blue thing is?

Thanks! public void myWonderfulApp() { // Some wonderfully written code here Integer lMyProcessID = android.os.Process.myPid(); int lMyCPUUsage = getAppCPUUsage( lMyProcessID ); // More magic } // Alternate way that I switched to. Is the binomial theorem actually more efficient than just distributing Word for unproportional punishment? Writing to /proc/[pid]/oom_score_adj or /proc/[pid]/oom_adj will change the other with its scaled value. /proc/[pid]/pagemap (since Linux 2.6.25) This file shows the mapping of each of the process's virtual pages into physical http://stackoverflow.com/questions/16726779/how-do-i-get-the-total-cpu-usage-of-an-application-from-proc-pid-stat

/proc/pid/stat Fields

Of course you should use scanf or other C functions for converting any perl regexpes I've used to C source. Exactly what it corresponds to in wall-clock time depends on the architecture and how your kernel is configured, but the important thing is that /proc/stat tells you how many jiffies the The first of these is the number of currently queued signals for this real user ID, and the second is the resource limit on the number of queued signals for this proctotal = int(utime) + int(stime) return(float(proctotal)) can be written: return float(int(utime) + int(stime)) Try not to do the same thing twice, e.g.

Ultimate Australian Canal Word for unproportional punishment? It calls wait3/wait4 system call (if available) and otherwise it calls times system call. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Utime Stime Linux The format of the file is: address perms offset dev inode pathname 00400000-00452000 r-xp 00000000 08:02 173521 /usr/bin/dbus-daemon 00651000-00652000 r--p 00051000 08:02 173521 /usr/bin/dbus-daemon 00652000-00655000 rw-p 00052000 08:02 173521 /usr/bin/dbus-daemon 00e03000-00e24000

system counter , 3. If this task truncates some dirty pagecache, some I/O which another task has been accounted for (in its write_bytes) will not be happening. Are the following topics usually in an introductory Complex Analysis class: Julia sets, Fatou sets, Mandelbrot set, etc? Is it bad practice to use GET method as login username/password for administrators?

state %c One character from the string "RSDZTW" where R is runâ ning, S is sleeping in an interruptible wait, D is waitâ ing in uninterruptible disk sleep, Z is zombie, Android Proc Pid Stat Main Menu LQ Calendar LQ Rules LQ Sitemap Site FAQ View New Posts View Latest Posts Zero Reply Threads LQ Wiki Most Wanted Jeremy's Blog Report LQ Bug Syndicate Latest Clearing the PG_Referenced and ACCESSED/YOUNG bits provides a method to measure approximately how much memory a process is using. For further details, see the discussion of PR_SET_TIMERSLACK in prctl(2).

Calculate Cpu Usage From /proc/stat

This is simply the sum of bytes which this process passed to read(2) and similar system calls. Here's the code: ----------------------------------------- Code: #!/bin/bash # # Control de procesos # # El script controla que el no consuma más cpu del # Si se sobrepasa el límite /proc/pid/stat Fields At least that's what I thought it was doing... –gyre Jan 6 '13 at 1:50 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign Calculate Cpu Utilization Formula Thanks, Romy romydmisc View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by romydmisc 05-24-2006, 12:56 AM #6 haertig Senior Member Registered:

To distinguish the two attributes, the "MMUPageSize" line (also available since Linux 2.6.29) reports the page size used by the MMU. Sensitive files such as /proc/[pid]/cmdline and /proc/[pid]/status are now protected against other users. Let Python crash loudly so we get the whole trackback def cput(): with open('/proc/stat', 'r') as procfile: cputimes = procfile.readline() cputotal = 0 # count from /proc/stat: user, nice, system, idle, Consider adding docstrings to your functions, rather than the inline comments (some of which are redundant - utime = proctimes.split(' ')[13] does not need the explanation # get utime from /proc//stat, Get Cpu Usage C++

The default value for this file is 0; a new process inherits its parent's oom_adj setting. See mmap(2) for some further information about memory mappings. Moving everything to functions looks much better (usually I do so with '''Docstrings''' there, just... Browse other questions tagged python linux or ask your own question.

return pid if __name__ == "__main__": main(parse_args()) Now if you want to import this functionality elsewhere, it's easy. Process Cpu Usage Linux This group should be used instead of approaches such as putting nonroot users into the sudoers(5) file. Before Linux 3.1, this field incorrectly displayed the setting of O_CLOEXEC at the time the file was opened, rather than the current setting of the close-on-exec flag.

For example on a x86_64 system: Node 0, zone DMA 1 1 1 0 2 1 1 0 1 1 3 Node 0, zone DMA32 65 47 4 81 52 28

What early computers had excellent BASIC (or other language) at bootup? If the pathname has been unlinked, the symbolic link will contain the string '(deleted)' appended to the original pathname. FILE * fp;char buf[1024]; char * cmd =" ps -C xxx -o yyy=-eo\"%C %x %t %a\""; fp = popen(cmd,"r"); fread(buf,1,sizeof(buf),fp); Now buf has instant value of %CPU usage.Is this OK.. Cpu Jiffies In the latter case, there is nothing in this file: that is, a read on this file will return 0 characters.

Most of these fields are as for inotify, except: mflags The flags associated with the mark (expressed in hexadecimal). Just starting out and have a question? Note the bug fix: [2:] should be [1:]. The sysconf(_SC_CLK_TCK) C function call may also be used to return the hertz value.

Obsolete, because it does not provide information on real-time signals; use /proc/[pid]/status instead. (33) sigignore %lu The bitmap of ignored signals, displayed as a decimal number. Join our community today! When jumping a car battery, why is it better to connect the red/positive cable first? Generalization of winding number to higher dimensions Where is the barding trick?

Your current code double-counts that time, and will lead to errors in your computations. Permission to access this file is governed by a ptrace access mode PTRACE_MODE_READ_FSCREDS check; see ptrace(2). /proc/apm Advanced power management version and battery information when CONFIG_APM is defined at kernel compilation Put it on the Python path, never write the code again. I wonder if there's a way to see what % of the total capacity the total usage is? –Cera Dec 26 '12 at 2:19 add a comment| up vote 1 down

Only part of texture paint is pink more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology flags This is an octal number that displays the file access mode and file status flags (see open(2)). If it is using half of its allowed memory, its score will be 500. The time now is 10:20 PM.

Here is an example, with the output wrapped and reformatted to fit on an 80-column display: # ls -l /proc/self/map_files/ lr--------. 1 root root 64 Apr 16 21:31 3252e00000-3252e20000 -> /usr/lib64/ld-2.15.so Permission to dereference or read (readlink(2)) this symbolic link is governed by a ptrace access mode PTRACE_MODE_READ_FSCREDS check; see ptrace(2). /proc/[pid]/seccomp (Linux 2.6.12 to 2.6.22) This file can be used to For sockets, that inode can be used to find more information in one of the files under /proc/net/. Whether or not certain of these fields display valid information is governed by a ptrace access mode PTRACE_MODE_READ_FSCREDS | PTRACE_MODE_NOAUDIT check (refer to ptrace(2)).