A process is a binary program running continuously on a computer (until terminated) which is managed by the operating system.

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How can a process in “interruptible sleep” state use 100% CPU?

According to this reference, a process has the following states R running or runnable (on run queue) D uninterruptible sleep (usually IO) S interruptible sleep (waiting for an event to complete) Z ...
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275 views

How to kill screen session with running sudo command?

I'm trying to write a bash script which would relaunch my NodeJS server. This is how I'm launching the screen with the server: screen -S web-server -d -m node web-server.js which end up in this ...
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248 views

What is the “Ideal Processor” value?

What is the "Ideal Processor" value and why/how does it pick a certain processor to run on? I've recently seen an obvious increase in CPU usage on the furthest last core, core #7 (i7 930 ...
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196 views

Child processes remain after quitting screen

I'm seeing some strange screen behavior on OSX. When I quit screen, child processes are not killed. $ screen $ tail -f (or some long running process inside screen) Then, I kill the current screen ...
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Ubuntu detect memory leak

I run watch free and then observe a continuous memory used increment, about 100 every 2s. How can I know which process contribute to the used memory increment? top and pmap does not help. BTW, after ...
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54 views

Is there any way to find how RAM my VPS uses on average?

I have a VPS system with 768MB RAM. Is there any way to find out what the average amount of RAM I normally use is which processes normally use high RAM and CPU so that I can see if i need to ...
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39 views

Copying processes in Linux

I would like to make a copy of process (On Linux). Let say that I have an application that on startup makes lot of calculations, and that takes it a long time. I want to start this application few ...
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132 views

Process With No Name: A Possible Linux Rootkit?

Situation When I was looking at gnome-system-monitor one time, I saw a process without a name. Didn't bother me at first. Later, my laptop seemed to be heating up, and would see spikes in CPU ...
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89 views

Process Hacker “System services”

Hoping that this isn't already asked somewhere and hoping it's not too vague. First time using anything on stackexchange. I'm a really curious person so I don't exactly need an answer to this ...
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70 views

How Windows/Linux assign PID to processes?

Q1 : I want to know how Windows/Linux assign a PID to a process when that process began? Is it a delimited random number? or it is fixed for a file on a compute? does it have a special algorithm? and ...
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135 views

disable chrome task manager? alternatively: prevent extensions from being killed

I have installed the chrome extension "Stayfocusd" which blocks websites for a certain amount of time. However, I have noticed a way to get around this. If you go to Chrome Task Manager and kill the ...
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30 views

Linux - view processes as they are being run?

I know I can use top or htop to view running processes in (near) real time, and I can use ps to print a list of all currently running processes, however what if I want to view certain processes and ...
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162 views

Can I stop ntoskrnl.exe from locking my TCP port?

I've been to use port 8092 to use some propriety software my company has made, but it seems the port is in use. Further tracking it down shows the PID of the process using the port as 4 (which as I ...
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6 views

How To Track Processes That Using Discrete Graphic Card

How do i know, which processes or background application is using my discrete card? By default, my laptop wont be using discrete graphic card unless gaming.. But now, even I'm not gaming...the led ...
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15 views

How can I monitor every newly created process of an entire Linux system?

I am on a gentoo Linux system and I want to monitor the time and name of every created and deleted process on an entire Linux system. How can I do that? If possible, I do not want to install new ...
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Why does process read Offset/Length from C: drive?

Below is a clip of SysInternals Filemon in action. What I don't understand is why various processes are reading the C: drive at an offset, rather than reading specific files. I have noticed ...
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Are there two seperated schedulers in major operating systems, one for processes and one for their threads?

Let's assume a process is given the CPU on a single-core CPU system by the scheduler and let's assume this process has 10 threads. Who decides which of the ten threads gets the CPU? In other words, ...
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17 views

Analyze data flow between Windows Applications/Processes?

I am currently tasked with creating a "Software Usage Map" for my work; the map should show all the different applications being used, and how they related to one another... for example, if data is ...
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33 views

CGroup Processes Not Terminated even when main process has been killed through Systemctl stop command

I am running systemctl stop process command for some process. Please find the output for systemctl status process below: Loaded: loaded Active: deactivating (stop-sigterm) CGroup: ...
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13 views

Tracking daemon restart

I have a daemon that seems to restart itself at irregular intervals. Behavior is consistent with doing kill -9 and then starting it again. Since system is pretty much open pretty much anybody might ...
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53 views

When is SIGSTOP/SIGCONT safe?

I often find myself wanting to pause a long-running operation so I can quickly do something that needs computer power. I find myself scared of using SIGSTOP/SIGCONT. One alternative would be to use ...
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27 views

How to know what kernel object process is waiting for in windows

I have javaw.exe and spotify.exe occasionally in state where they can not be terminated. I mean that I can see them only in task manager and not normally running. Terminating does not affect all, they ...
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39 views

Dropbox Desktop keeps uploading after closing

I am using the Dropbox Desktop tool and upload (for my bandwidth) large amounts of data regularly. When I want to e.g. play online I just pause the upload. Since a few days when I pause it, it keeps ...
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70 views

Lingering firefox.exe

It seems like every other time I try to launch Firefox, I get an error message saying Firefox is already running. While I see no Firefox windows displayed, investigating the Processes tab in Task ...
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53 views

SMC.EXE High download from internet only when vpn is connected

I have an issue of data being downloaded whenever the vpn connection is active i.e. the symantec SMC.exe process starts download which causes my internet bandwidth quota gets completed very fast and ...
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164 views

How to read the results of PsList?

I'm trying to use PsList from SysInternal to check the RAM used by running processes. The thing is I don't quite understand the results. For example, in the screenshot below, VBoxTray.exe is using ...
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48 views

SIGCONT definition, continue or restart?

According to the definition from wikipedia SIGCONT The SIGCONT signal instructs the operating system to **continue** (**restart**) a process previously paused by the SIGSTOP or SIGTSTP signal. One ...
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Synergy's synrgyhk.dll suddenly gets linked to random processes

I'm using Windows 8 and from time to time, my Synergy server just stops responding. It doesn't notice that it's not working anymore (the interface doesn't show any error), but re-launching the server ...
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103 views

User still logged in with active processes after disconnected via ssh timeout

I've noticed that when I am disconnected from an ssh session to my server do to inactivity, that my user is not logged out and active processes are still running. When logging back in, running the ...
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linux - kill -9 doesn't work on running process

I have apt-get process running on my server and I cannot kill it. root 26386 99.7 0.0 25588 2844 ? RN 06:52 956:49 apt-get -qq -y update I used kill 26386 first, then tried kill -9 ...
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One particular instance of svchost.exe taking up awful lot of memory. Why?

I have been observing that the process "svchost.exe" in my list of running processes keeps taking an awful lot of memory; close to 550MB at times! There are multiple instances of svchost.exe running ...
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131 views

nohup process commands to detect if process is still running and if not, re-run process in lamp stack

I am running nohup to keep a php script running in the background. Is there anyway to ensure the process keeps running? Is there a command that can check to see if the process is still running and if ...
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How can I confirm if a process is being blocked from communicating on a network?

I have a user system with a third-party vendor product that needs to communicate with the network. We're noticing symptoms that suggests that the program/process is being blocked from communicating ...
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Nicing processes and unresponsive computers

I've a of process running on a machine. The machines are 6-core hyperthreaded for an effective total of 12 cores and the process takes 400% of the cpu so 4 cores. I niced the process to +19 for a ...
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189 views

What can cause a sudden increase in the number of processes at my VPS?

My VPS (Ubuntu 12.04.3 LTS ) dies few times a month. Only restarting whole VPS through hosting panel helps. I discovered that the cause of that is a sudden increase of the number of processes. I've ...
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716 views

Why can't I kill a process?

Thunderbird has crashed and all attempts to kill thunderbird.exe are to no avail. I've tried Task Manager and Process Explorer from Sysinternals and simply nothing happens when I select 'Kill'. I ...
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47 views

Disable Windows 8 auto ending programs

I often lose my unsaved work because of Windows 8's stupid feature that ends unresponsive programs once the dialog box, "This program is not responding" appears. Are there any options I can disable ...
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Taking control of a program another user started in Windows 7

The company I work for is adding securities per user. We used to use generic log-ins so that multiple people could use a single machine with out restarting our programs. The program takes 2-4 minutes ...
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list all the information of a process under commandline in osx or linux

Is there any command to list all the information associated with a process, include all parameters in PS command, open files and ports and so on? Thanks!
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337 views

Recover Data from a crashed process (with .dmp file)

I made a .dmp file of my process that crashed. It contained very important data. How will I recover that data. The process had it sat in ram, then hung half-way through saving. I made a 'Dump File' ...
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133 views

Reducing CPU load to absolute minimum

I have had a couple of things gone missing I believe stolen in my shared apartment and want to run my laptop constantly with a webcam attached, running webcam surveillance software to record/ take ...
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107 views

Limited task manager?

I know it seems counter-productive, but I was looking for a task manager that it's more limited than the one that comes with Window. The reason is that some servers that I use (but not manage) have ...
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47 views

How to keep a completed process in memory?

I have a program that has a large startup delay. (it needs to load lots of data from hard drive). So, I call it from the command line and provide it the name of input file, it processes that and ...
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103 views

How do I force a process to stay on even after logging out or move process out of user-space memory?

I am quite often uploading various big files to various websites with my web browser on a slow connection and not every website support resuming of the upload. Now my lsass.exe process consumes ...
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activity monitor - alert over an email when no activity detected (file changed or via http request)

Is there any reliable and configurable utility for linux severs that sends email notifications when no specified/configured/scripted activity is detected for a given period of time? I'm not looking ...
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141 views

Which processes were running yesterday?

We have a production machine that keeps crashing on regular basis. Our staging environments run fine, but when the application is deployed to production, the production machine crashes after two or ...
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120 views

Why is process not being displayed by TOP

I am running a Mathematica script (this question probably doesn't fit in Mathematica.SE however) and I know that it generally takes up a lot of RAM and loads up my cores. However, althought pgrep ...
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Issue with awtessd - how to permanently close a process on osx Lion?

I have a problem with this process called awtessd, when i use a program (autodesk alias) several instance of this process are opened, slowing down everything. If i close the process everything turn ...
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105 views

Start, stop and restart processes without resorting to batch files

I need a GUI to start, stop, and restart processes (actually console applications). Currently I start those console apps using BAT files. It's not convenient. Here is an example of BAT file which ...
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How to block memory reading with AppGuard

I have instaled AppGuard program on my computer, how do i block sucessfuly program Task Manager with it, so Task Manager cannot read process memory. Or any other program. Can someone perhaps link to ...