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Linux Proc Cpu Usage Per Process


linux performance share|improve this question asked Jan 14 '12 at 23:12 Dervin Thunk 6,7051366144 Is top sufficient for your purposes? –Oliver Charlesworth Jan 14 '12 at 23:16 Did you try just piping it without that? –Caleb May 29 '11 at 5:56 1 Will do. Parking lot supervisor Why didn't Dumbledore appoint the real Mad Eye Moody to teach Defense Against Dark Arts? I mean there are BIG differences between output of ps and top in cpu utilization...Don't know what to do. Source

You only get back a single line for the PID you requested.. –GR Envoy Jun 30 '16 at 0:52 1 "I have seen this take 3+ seconds" => This is While top is a monitoring tool, ps is a snapshot tool. Does this make any sense. A single word for "the space in between" Why does the `reset` command include a delay?

Calculate Cpu Usage From /proc/stat

Join them; it only takes a minute: Sign up cpu usage per process? Code: #!/bin/bash # # Process control # # This shell-script watch that doesn't pass the of % cpu usage # If it does, the script kills that process and Only part of texture paint is pink Why would two species of predator with the same prey cooperate? Problem with top is that it is too "dynamic" if you will, for my purposes.

One could use times provided by ps and calculate CPU usage from this. You have some files in root of /proc/ that have various information about the overall state of the system. Also I add %cpu for "fun". Utime Stime Linux Where is the barding trick?

a significant one. /proc/pid/stat Fields This site is not affiliated with Linus Torvalds or The Open Group in any way. more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science go to this web-site In 84,7% of the time it has not been bugging on the CPU.

from itertools import islice __all__ = ['CPUUsage', 'get_cpu_usage'] _instance = None def _get_instance(): global _instance if _instance is None: _instance = CPUUsage() return _instance def get_cpu_usage(): return _get_instance().get() class CPUUsage(object): def Linux Get Cpu Usage Of Process Only part of texture paint is pink What happens to a radioactive carbon dioxide molecule when its carbon-14 atom decays? if take a look here: stackoverflow.com/questions/23367857/… "According the htop source code" - need to calculate total spent CPU time, including idle, irc etc. How can we get the realtime CPU usage % for a given process?

/proc/pid/stat Fields

This could be useful to calculate CPU usage over a longer period. http://unix.stackexchange.com/questions/554/how-to-monitor-cpu-memory-usage-of-a-single-process asked 5 years ago viewed 156680 times active 2 months ago Linked 1 List 10 main CPU-consuming process 1 Is there a way of seeing the CPU usage of the programs Calculate Cpu Usage From /proc/stat This site is not affiliated with Linus Torvalds or The Open Group in any way. Calculate Cpu Usage From /proc/pid/stat You should put the sleep(1) as the first thing inside the loop, or, while you are using top as a test, you should comment out the sleep(1) because the top call

Thanks for your replies. http://smartnewsolutions.com/cpu-usage/linux-command-get-cpu-usage-process.html You should split on whitespace, and count fields, instead of counting spaces.... Contact Us - Advertising Info - Rules - LQ Merchandise - Donations - Contributing Member - LQ Sitemap - Main Menu Linux Forum Android Forum Chrome OS Forum Search LQ No dash in the options. Calculate Cpu Utilization Formula

My top doesn't seem to have a batch mode, which is quite limiting. effect is, you will get averrage load on specfied time period. Example of compact operators in quantum mechanics Encryption - How to claim authorship anonymously? have a peek here haertig View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by haertig 07-04-2006, 09:00 AM #7 ajucan LQ Newbie Registered: Jul 2006 Location:

What's the male version of "hottie"? Get Cpu Usage C++ share|improve this answer edited May 13 '14 at 19:32 answered May 11 '14 at 22:09 Kieleth 111 You'll likely want to add further details around which version(s) of top As in the example above.

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I never succeed in thickening sauces with pasta water. Cheers. –boehj May 29 '11 at 12:05 | show 2 more comments up vote 3 down vote Note that current versions of ps have sorting ability within them, based on field cpu_total rather than cput. Cpu Jiffies First column is name, second processor, third, %cpu.

This is a different value than I calculated using above method. My problem is just a little more complex, i'm trying to find Peak CPU usage and average CPU usage of a particular process. share|improve this answer answered Sep 11 '14 at 6:58 ensonic 2,369919 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign http://smartnewsolutions.com/cpu-usage/display-cpu-usage-process-linux.html I mentioned the second parameter of /proc/uptime to indicate how to calculate the total CPU usage of the system as a whole rather than a single process; since we are only

If you have it installed, htop allows you more fine-grained control, including filtering by—in your case—CPU. What am I doing wrong? I have posted an answer to my question please check it –mSO Jul 1 '13 at 13:31 1 @T-D The uptime I use in the equation is the first parameter This is not ideal, and it does not conform to the standards that ps otherwise conforms to.

systeminfo.c */ #include #include #include #include #include int main(){ glibtop_init(); glibtop_cpu cpu; glibtop_mem memory; glibtop_proclist proclist; glibtop_get_cpu (&cpu); glibtop_get_mem(&memory); printf("CPU TYPE INFORMATIONS \n\n" "Cpu Total : Notices Welcome to LinuxQuestions.org, a friendly and active Linux Community. If you must use ps, try this: ps aux | sort -nrk 3,3 | head -n 5 If you want something that's truly 'top'esq with constant updates, use watch watch "ps How can "USB stick" online identification possibly work?

Data retrieval ps, as well as top, uses data from files stored under /proc/ - or the process information pseudo-file system. Why isn't the religion of R'hllor, The Lord of Light, dominant? ​P​i​ =​= ​3​.​2​ Is the binomial theorem actually more efficient than just distributing Extreme modification suggestions for a Wi-Fi enabled How does President Duterte's anti-drug campaign affect travelers in the Philippines? Extreme modification suggestions for a Wi-Fi enabled hairbrush?

Join them; it only takes a minute: Sign up How to calculate the CPU usage of a process by PID in Linux from C? ps aux | sort -nrk 3,3 | head -n 5 –syss May 12 '16 at 10:42 add a comment| up vote 27 down vote The correct answer is: ps --sort=-pcpu | On most distros, it's pretty simple to install using Yum or apt-get. –Stefan Lasiewski Aug 17 '10 at 20:48 @Stefan if you want to to check remotly you can Thank you Facundo.

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