Questions about identifying processes, about listing them, sending signals, killing them, assigning and using process priorities.

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5
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1answer
387 views

How to change low process priority?

I have just set Ubuntu 12.04 64bit with Cinnamon desktop and 3.5.0-030500 kernel on my new laptop with IvyBridge i7. I decided to test its performance by running a single threaded CPU-hungry program ...
3
votes
1answer
105 views

What is the “Browser” process?

What is the Browser process? Is the process safe or malicious? Thanks for help, Top results:
3
votes
1answer
38 views

Is it safe to remove a process folder from /var/run/?

Is it safe to remove a process folder from /var/run/ if I think it has got wrong permissions, will it be recreated by process as before? Do I lose any information by deleting /var/run/<process ...
3
votes
1answer
131 views

Is there a way of automatically suspending processes that are running in unfocused workspaces?

Is there a task manager (or an option) that can automatically suspend processes (or slow them down) in unused workspaces? For example I have Chromium in one workspace and it takes quite a lot of CPU ...
2
votes
1answer
46 views

how to know the use of my applications?

I want to know how long my programs have been used. For example if I use my web browser i want to know the start and the close time to obtain a total of use time. Basicly I want to know when an ...
2
votes
1answer
1k views

Keep the running processes alive when disconneting the remote connection

I have a bunch of processes on a server initiated by ssh from my own machine. It is now about three hours that my machine's Ubuntu has got hung and I do not see any other options but restart. Is there ...
2
votes
1answer
347 views

What can I do when the Network Manager tray/panel icon stops responding?

Sometimes the networking program (controlled via drop down menu from the wireless symbol in the top right of the screen) hangs on my laptop (ASUS U36JC). I have tried "sudo killall NetworkManager", ...
2
votes
1answer
272 views

Getting the name of the process, that corresponds to the active window

How can it be did using Python(in Ubuntu)?
1
vote
1answer
173 views

Can I connect to running autostart python script?

I am running Lubuntu 13.10 an have a python script that is run on boot through ~/.config/lxsession/Lubuntu/autostart. The script startes a web application and outputs various information to terminal ...
1
vote
1answer
69 views

How would I make this bash script that displays certain system processes related features?

Basically I need to make a bash script that acts as a handy tool for diagnosing performance issues. The script needs to first determine each unique process owner on the system, and then for each user ...
1
vote
1answer
257 views

Tons of Processes Running

I have an Ubuntu 13.04 running on a P4 computer with 1 Gb of RAM (I know, I need to get a new one). I recently have been getting crashes, and a lot of my memory is being used. So I looked in Top and ...
1
vote
1answer
150 views

How to use wired and wireless interfaces simultaneously?

When creating any socket, we don't provide a device name (like eth0, or wlan0). On my laptop, I have a wired interface (eth) and a wireless interface (wlan). I want to run one process on each ...
1
vote
1answer
358 views

gnome-settings-daemon extensively reads/writes hard-disk

After upgrading to 11.10, after each login the computer becomes slow and the hard-disk noisy (sounds like reading/writing/defragmenting). When I "stop" the process gnome-settings-manager in the system ...
0
votes
1answer
18 views

System resources process questions

Is there a way you can find the percentage of CPU time used by a process on the command line? Also I want to find out what the cpu time is by a certain process as well as the percentage of memory ...
0
votes
1answer
50 views

How to find and star/stop or hide/display indicators?

I am using Ubutnu 14.04 (LTS) and have following indicators: Now from above indicators (like: Bluetooth, Classic-Menu, Indicator-synapse, Network, Laungage, Message, Sound , datetime or calendar and ...
0
votes
1answer
17 views

How to take/release control of output?

I have two parallel processes running shell script, each will print to stdout from time to time using echo. But sometimes the output may mixed up. Is there a way to take exclusive use of stdout, then ...
0
votes
1answer
29 views

migrate live process from one machine to the other

I am going to work on a project in which one live process should migrate from one Ubuntu machine to the other machine( in a homogeneous environment ) so what are all the things I should know before ...
0
votes
1answer
114 views

How do I properly restart Chrome?

I've been doing some WebGL development, and of course crashing Chrome occasionally along the way. When this happens, WebGL in Chrome won't work until I restart my PC, which makes me think that even ...
0
votes
1answer
43 views

Permanently end processes

The point is that i installed xubuntu and at one point i get on the screen one light bulb increasing and decreasing the light on the display (laptop) so i found in task manager that it is this ...
0
votes
1answer
54 views

How to change process priority

I want to change the priority of a process on my Ubuntu 12.04 Desktop, but I can't. I go into an app called "System Monitor", right click the process, and change the priority to "high". I then get ...
0
votes
1answer
88 views

wc prints a byte count for a nonexistent process

I came across a program called wc, which prints the number of bytes, words, and lines in files. Now my intention is to use it to determine if a process is actually running on my computer. If it is, it ...
3
votes
0answers
46 views

Suspicious processes starting with “[?/-]” with after upgrading to trusty

I have just upgraded to Trusty (this may not be relevant). I fired up top, and noticed a heap of processes running as root that I had not noticed before. For example: 234 root 39 19 0 ...
2
votes
0answers
410 views

Stopping e-calendar-factory and e-addressbook-factory

How can I prevent e-calendar-factory and e-addressbook-factory from ever starting? If I manually kill the processes they just start up again? Between the two they are spamming google with 100 ...
2
votes
0answers
418 views

ps: show thread and display as ASCII “forest”

My favourite ps invocation is: ps -efww ef as I need to watch all processes (-e), get extended information about them (-f), see the environment (e) they operate within, wrapping lines (-w -w) so I ...
2
votes
0answers
53 views

How to log processes in daemon-mode?

I would like to save the standard output of the program motion in a text file. If I don't use motion in daemon-mode I would simply do it by: motion > log.txt But what is the equivalent when I ...
1
vote
0answers
28 views

Java process stays open

I like playing Minecraft but after I close Minecraft, the java process stays on and I need to go into the system monitor to kill it or else there will be a lot of java processes on slowing down my ...
1
vote
0answers
36 views

I want to use fstate to measure context switch activity, but tracer 'sched_switch' is missing from my list of fstate tracers. Can I fix that somehow?

# uname -a Linux utah 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux # cat /sys/kernel/debug/tracing/available_tracers blk function_graph mmiotrace ...
1
vote
0answers
35 views

Can I set Process Scheduling of Ubuntu 12.04 LTS to SJF?

I need to change the process scheduling of Ubuntu to SJF as a part of my research project. Can I do it through C/C++ code? Please give me the code for that if it is possible.
1
vote
0answers
112 views

I stopped a process and now my desktop doesn't work

I stopped a process from system monitor because my computer was overheating. I'm new with Ubuntu (13.04) I won't be messing with things in the future :P So basically I can't see the launcher or ...
1
vote
0answers
250 views

Automatically kill Chrome processes that exceed RAM limits

I've sought advice from similar threads here, and I'm either not reading them correctly, or my brain is currently fried. My Prior Reading: Automatically kill a process if it exceeds a given amount ...
1
vote
0answers
209 views

12.04 gvfs-afc-volume CPU usage high, no iphone

I've notice many people reporting this problem and I'm suffering from it too on Ubuntu 12.04. I'm using GVFS for android support, but I rarely connect to any GVFS devices yet this problem appears all ...
1
vote
0answers
72 views

getting grub problem on my new laptop with preinstalled ubuntu software and just cant sort it out

got new laptop with preinstalled ubuntu.but now i m getting few lines as gnu grub version 1.99-21ubuntu3.1 minimal BASH-like line editing is supported.for the first word TAB listspossible command ...
1
vote
0answers
69 views

How to investigate scheduler issues?

I have a server process that should runs multiple threads at close to 100%, each on its own CPU. When I run the process on a RHEL box, the CPUs in question appear to stay pegged at 100%, according to ...
1
vote
0answers
171 views

What priority to use calling sched_setscheduler

I am writing a server that I do not want preempted by any other user process or "low priority" kernel process. I'm using code like this: struct sched_param sched_param; memset(&sched_param, 0, ...
0
votes
0answers
12 views

Why does f.lux uses 100% of a cpu core?

I installed f.lux on Ubuntu 14.04, The gui doesnt work properly but I am able to access settings through the xterminal. While looking in the system monitor, it can be seen that a process called ...
0
votes
0answers
17 views

WINE programs/processes isolation

I would like to completely isolate from each other two Windows programs running in WINE. I intend to block them from sharing memory, interprocess communication, files and using any possible ...
0
votes
0answers
18 views

Is there a easy way, for example through an advanced system monitor, to know what a process is

Some times, I'm curious about what a process is. Usually, I just type the name of the process into Google or Wikipedia. But that's really annoying. So is there an advanced system monitor or a plugin ...
0
votes
0answers
9 views

lldb-3.3 failed to launch on Ubuntu 12.04

I am trying to use lldb on ubuntu 12.04 because I am more familiar with it than gdb. However, it fails with uninformative messages every time. I installed it though the official repository sudo ...
0
votes
0answers
18 views

creating a copy of a process in linux kernel

I'm trying to create a copy of a task_struct in the same kernel where the copy's original task_struct is. The copy should have a different PID and the state should be same as the original ...
0
votes
0answers
5 views

'Help/F1' processes continuously being created

I am new on Ubuntu, so I don't know if this question was already answered. At least I didn't find nothing closer to what's happening on my computer! Basically, when I open an application (i.e. ...
0
votes
0answers
15 views

Get notified on process close

We have a driver which keeps some objects on a per process basis. These objects need to be cleaned and freed when those processes close. Is there a way to get notified (in a kernel driver) of those ...
0
votes
0answers
12 views

Accessing a process after closing the consol

Basically I am using Ubuntu to run a minecraft server via a VPS and I’m using putty to control it. once I have started my server and everything is running, I’m in control of the server console, just ...
0
votes
0answers
26 views

kernel event listener

I wonder if there is something similar to an event listener in UNIX that a program can subscribes Specifically I want to know: Start and end times of a user session Start and end of the applications ...
0
votes
0answers
33 views

directory locked

I have been trying to install virtualbox using this command: sudo apt-get install virtualbox.qt But I am getting this error: E: Unable to lock directory /var/cache/apt/archives/ I have been ...
0
votes
0answers
9 views

What prevents a user process from writing at random positions in memory and damage the OS or other processes?

Why can't the following code damage memory? int x; while(1) { x = rand();//assuming that the address space has the size of an int *x = 0; } I know that each process has a virtual address ...
0
votes
0answers
20 views

Int system call and 'int' within C syntax

I'm learning about kernels and I was curious if the int system call(in our case, in Linux) has any connection with the declaration of an integer in C and C-based languages. int n; Is an integer ...
0
votes
0answers
86 views

Option for GREP only non-default processes and services?

is there any option for grep only non default processes and services? I know how show all of this and export to file, but manual reading and deleting line by line is not ideal. :-) Thanks for your ...
0
votes
0answers
99 views

Display PID(Process id) on application title bar

I am using eclipse IDE for application development. Some times this IDE will not respond and I need to kill this by opening gnome-system-monitor and pressing End process button. I know that we can ...
0
votes
0answers
99 views

High(er) idle cpu temps compared to Windows

My CPU seems to be getting a lot hotter under Ubuntu compared to Windows. I am not basing this on actual temperature readings, but simply on the fan that's kicking in, which it doesn't do under ...
0
votes
0answers
13 views

Process Scheduling with USB

In linux kernel development how to come to know which processes use the usb and which one do not?Any help would be appreciated