Ubuntu :: Maximum The CPU Usage For A Process?
Apr 2, 2010How can I maximum the CPU usage for a process? And also use both cores if possible.
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General :: Fixed Maximum CPU Usage For A Process
Jan 31, 2010Are there a way to set fixed maximum processing power to a process.For example a program called 'X' uses cpu in high speed. I need to set this 'X' process to to run with maximum 20% of cpu usage at any time.
View 4 Replies View RelatedGeneral :: Unix - Monitor Average CPU Usage And RAM Usage On One Process System?
Nov 15, 2010Is there any way to monitor one process' CPU usage and RAM usage over time on Linux? I am trying to change to a cheaper VPS and need to work out what level of CPU and RAM I need!
View 2 Replies View RelatedCentOS 5 Hardware :: Format New Hard Drive To Get The Maximum Usage?
Jun 7, 2009I am about to purchase a new external hard drive which will be driven through the USB port. It will probably be a 1.0 TB drive from Frys/CompUSA/MicroCenter or some discount source. It will probably come formatted to run on a Windows machine and I intend this drive to be run only from my Linux laptop. I'd like to format it to be able to make the most of it from my Linux machine. Although re-formatting may not be absolutely necessary, as it probably will work "OK" just out of the box as is, how can I format it to get the maximum usage out of this new drive?
View 6 Replies View RelatedProgramming :: Maximum Ports Per Process?
Dec 8, 2010I'm trying to build a multi-threaded server "C" program connecting to multiple clients. For various design reasons, I thought of having one port number per client. What is the maximum number of ports my process can handle
View 5 Replies View RelatedUbuntu :: Maximum Allocatable Heap Size For A Process?
Mar 30, 2010I'm wondering what's the maximum heap space a process can use (not necessarily by a single malloc()) in Ubuntu x86_64. Which parameter determines the size
View 7 Replies View RelatedProgramming :: Maximum Heap Size For A Process?
Mar 15, 2011Is there any maximum limit to the heap memory allocation?My program is in PERL and i am using a solaris system. when i did "pmap pid" (pid = my process id) it is showing a number of heap memory allocated and all of them with GB sizes. This single process is eating up most of the physical memory.Is it normal and is there any way to get the heap memory size down
View 3 Replies View RelatedGeneral :: Break Copy Process When Folder Size Reaches Its Maximum?
Mar 19, 2011I have written a script.
#/bin/bash
a=`du -sh /root/samplefolder | cut -f1`
echo $a > testfile
[code]....
The aim of this script is, when the folder reaches 20M then attributes will be set to that particular folder so that no newfiles and folders cannot be created or copied to that samplefolder. whenever i copy a file morethan 20M to that folder its getting copied fully and then the attributes were applied. But i dont want this to happen, when the folder reaches its maximum current write operation to that folder should be stopped automatically with a error.
Ubuntu :: Process - Backend - Causing CPU Usage To Max Out
Oct 6, 2010I have a problem with cpu, when i'm not running any application ,cpu is 100%, this picture. i use acer 4741 ram 2Gb ddr3, core i3 2.13Gh.
View 3 Replies View RelatedGeneral :: CPU Usage Of Process
Jul 15, 2011I am currently writing a JAVA script to monitor certain unix processes through JConsole. Upon having lots of trouble with runtime.exec, i decided to bypass the top/ps command call and just get the information straight from /proc/*pid*/whatever.Now i can pull back any information from any of the files I want, and the current way i determine the CPU usage of a process is as follows:Add the UTime and STime of that process from /proc/pid/stat then divide my pidCpu by UTime + STime + NTime from /proc/stat, then multiply that by 100, should give me the % cpu usage a process is using, right?Theory being if I get the jiffies assigned to my process, I can divide that by the total jiffies the cpu assigns.
However, my results seem to vary from the ones gathered from top and ps. What am I doing wrong?
General :: Process CPU Usage
Sep 6, 2010If I, using sar or vmstat, found that there is a CPU load on my Linux box. How can I know the top processes consuming the CPU?
View 9 Replies View RelatedUbuntu :: Terminating Process If Using High CPU Usage For More Than X Seconds?
Jun 30, 2011Is there any program to terminate process automatically if using more than 90% or 100% CPU time for more than 5 seconds? I have a program that opens a web browser, do some stuff on it and close it. But problem is that sometimes that browser starts using 100% CPU
View 2 Replies View RelatedGeneral :: Get I/O Usage By Process In Unix?
Aug 10, 2011Possible Duplicate:
Linux: Is there something similar to "top" for I/O?
I am trying to do some CPU intensive operation on a Linux machine and it is showing very high load.
I want to figure out if this load is due to I/O or CPU usage. How could I get the percentage of I/O usage by process?
General :: Way To Limit CPU Usage For Some Process?
Sep 21, 2009I'm writing a shell script which aims to create a safe gtared (xxx.sql.gz) copy of MySQL databases.This script is planned to be Cron-Jobed.
Well, what I need to add to this shell, is something that limit CPU usage for the whole process (just in case if the database being generating is a huge one.)So, after few time of googling I found couple of solutions:
- Using cpulimit.
I tried to place the code in Position(1) and Position(2) but it didn't seem to be working fine.. Any idea about the right use?
And the other Solution is:- Using nice.
Well, assuming I named my shell script (sqlbacker)..
Finally, this is my first time I ever write a shell, so correct me if somewhere I made a mistake :-)
(The script itself works perfectly)
General :: How To CPU Usage Of Process From / Proc?
Jul 15, 2011I am currently writing a JAVA script to monitor certain unix processes through JConsole. Upon having lots of trouble with runtime.exec, i decided to bypass the top/ps command call and just get the information straight from /proc/*pid*/whatever.Now i can pull back any information from any of the files I want, and the current way i determine the CPU usage of a process is as follows:
Add the UTime and STime of that process from /proc/pid/stat then divide my pidCpu by UTime + STime + NTime from /proc/stat, then multiply that by 100, should give me the % cpu usage a process is using, right?Theory being if I get the jiffies assigned to my process, I can divide that by the total jiffies the cpu assigns. However, my results seem to vary from the ones gathered from top and ps. What am I doing wrong?
General :: Need To Limit CPU Usage Of Process
Jan 26, 2010There's a disfunctional process eating copious cpu time.Is there a way to effectively assign it a high nice value? I need to do this whenever it runs, for whatever reason, and I can't be bothered to track down all the scripts and scenarios that cause it to run and change the script to use nice. And I can't be bothered to manually run renice whenever I notice that it's running.
I want the OS to automatically assign a high nice value to this process, perhaps based on the processes name. Is this possible?Presumably, a cron job could run every 5 minutes and run "renice" on every process matching a given name, but I'm hoping for a solution with more finess.
General :: Display The Memory Usage Of Each Process If I Do A 'ps -ef'?
Jan 29, 2010In linux, how can I display memory usage of each process if i do a 'ps -ef'?I would like to the 'virtual memory', 'res memory', 'shared memory' of each progress. I can get that via 'top', but I want the same info in 'ps -ef ' so that I can pipe the output to 'grep {my process name}'.
View 3 Replies View RelatedGeneral :: Big Cpu Usage But Top Shows No Heavy Use Process
May 6, 2011I have been running to a strange problem. For a few days, a few times a day something seems to take over my machine. Suddenly I can't type, or the key shows up about 5 seconds are being pressed, music players halt, etc. In anticipation, I had top and htop running. Sure enough, when this business begins htop reports all 8 cores firing at near 100% for a few minutes. However, top is telling me nothing about who is too blame. The cup%sy on top shows heavy usage, but the top processes are nothing remarkable, mostly just top and htop and conky, all running at around 1 or 2% on average. I am a bit puzzled as to why I can't see the cpu hog so that I figure out what is going on. My question then: Are there some processes (in kernel space?) that don't show up in top, yet which could be hogging the cpu?
View 3 Replies View RelatedGeneral :: Display Processes % Usage But Only Want The Process Name And % Used?
Sep 14, 2010I have to monitor the %MEM that processes are using, so I use the ps and sort command like this ....
ps -aux | sort -nk4
So this will sort by column 4 so I can see the all the processes that are using the highest %MEM. What I really want is to be able to just display the process name and the %MEM next to it. how to do this?
General :: Calculating Process Memory Usage?
May 13, 2010What originally seemed like an easy thing to calculate has given me a big headache. Perhaps someone can help me with my issue. I am trying to find, in particular, how much memory certain application processes are taking. The process always is the same name, main_server, but with an argument to tell it what to do when running as a daemon.
When running the following command against all "main_server" processes, it produces a result in megabytes based on the output of the rss field in 'ps'.
Code:
CALC=0
for ea in
`ps -e -orss=,args= |
sort -b -k1,1n |
pr -TW$COLUMNS |
grep main_server |
grep -v "grep main_server" |
[Code]...
Currently I am left scratching my head. For capacity planning purposes, it would be nice to know how many more 'main_server' processes could run on the system without causing it to swap. Knowing the buffer and cache usage will go down as running processes demand more memory, I prefer to look at the free memory excluding cache and buffers. However, since 'ps' is reporting the processes are using more memory than free reports is in use without those things, I have no way to know how many more processes the system can support. I played around with different fields in 'ps', such as vsize, size, etc, but with no luck in matching up any numbers.
Server :: Disk Usage By Process / How To Check?
Jan 24, 2011how to check which process consuming a lot of HDD I/O ? Do You know any good command which can show me which process saving something big on the storage system ? "iostat" or maybe "ps" ? Would be great if somebody could past me here nice command.
View 3 Replies View RelatedServer :: Kill Process Upon Reaching 85% Cpu Usage?
Mar 13, 2010We have an internal application which takes below 10% cpu usage normally. However sometimes it hit above 85% or more (and stays there) causing the server to become very slow. Currently we have to monitor this manually, kill the process and manually start it.
command / script that will kill the process (using pid will be the best option as i think) when it reaches 85% or higher
(I saw another question that suggested to use monit but I have to get this done using the standard commands available in the current installation - RHEL5)
Server :: Monitor Memory Usage For Process
Jan 24, 2011I use linux and Unix and I want to monitor the memory usage for process. To prevent memory leakage and out of memory of the system. Any command or sytnax , have more better and presentable data than below command about memory usage of one process ?
View 3 Replies View RelatedServer :: Qmail Httpd Process Usage Goes To 100 %?
Jan 26, 2011I am using qmail in my office. I am noticing this for more than a month. It is my daily routine to check the cpu utilization using top command and by using top different processes can be viewed. the apache process after 1 or 2 days shows cpu utilization of 100%. There is no affect on the server whatsoever of 100% because mail server has 2 processors of 4 core, i think so that may be the reason. Can any one explain why is this happening. What i do after that is i restart the httpd process and cpu utilization comes to normal. What are the reasons behind this and how to solve this permanently.
View 1 Replies View RelatedSoftware :: Limiting CPU Usage Of A Multithreaded Process?
Oct 12, 2010I have a multi-threaded process running and I have to limit the cpu time used by each of the threads. If 1 of the threads uses the whole of configured CPU time, the other thread should sleep and not consume CPU time in that cycle. 1 thread has higher preference over the other. How can i implement it my CPP code?
View 1 Replies View RelatedSoftware :: Monitor Memory Usage Of A Process?
Sep 2, 2010How can I periodically monitor memory usage of a process in linux.Can it be dumped in some file.So that later I can see what was the process behaviour in taking memory.
View 2 Replies View RelatedGeneral :: Limit The Memory Usage Of A Specific Process?
Apr 24, 2010I've written a program for a class that my professor will be testing in various low memory environments to see how it behaves when the program runs out of memory. Is there a way I can simulate the execution in a low memory environment without creating a virtual machine?
View 1 Replies View RelatedNetworking :: Tool To Monitor Network Usage By Process?
May 9, 2010I have looked for and found several tools to show a system's total network usage. I have not, however, been able to find any that show this information in the context of individual processes. Do any such tools for linux exist?
View 4 Replies View RelatedGeneral :: Get The Each Process Actual RAM Memory Usage In 2.6.21 Or Higher Version
Feb 8, 2010I woukld like to know the kernel command or linux kernel file name where i can get the process actual physical RAM usage in linux version 2.6.21 or hiher version.
View 2 Replies View RelatedSlackware :: Unable To Kill Java Process With Average 90% Cpu Usage?
May 11, 2010I have a java process running in background. I have no java dependent program opened and even if I had, this program should be killed if I kill the Java process. top shows that Java causes almost 90% cpu usage.
[Code]...
The only way I can imagine is to restart, but this might happen again.