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
434 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
125 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
53 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
137 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
48 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
418 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
356 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
44 views

Switch tasks on active process to new process

What I'm going to explain is really about nginx processes, so maybe it can be done in nginx, or maybe its a Linux feature. In anyway, I hope it's possible. I have an ningx process running, that looks ...
1
vote
1answer
240 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
78 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
397 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
158 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
380 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
47 views

pkill command with sessionid is not killing entire process tree

I am executing the following command to stop entire process tree(i.e parent and all its child/grand-child processes) : pkill -9 -s {sessionID} To get sessionID I am using following command: ps -o ...
0
votes
1answer
30 views

How are process id PID assigned on Ubuntu?

I see the pricessid ranging from 800 to arround 6500. So what process or algorithm does Ubuntu use to assign unique pid to the process?
0
votes
1answer
58 views

Why is my non-system HDD cannot spin down?

My non-system (/media) HDD unfortunatly wakes up from sleep after around 1-2 min. I tried to investigate which process could request an access to hdd while sleep with the help of thes thread: ...
0
votes
1answer
153 views

Ubuntu is very slow in my Laptop Asus N51VN

My laptop has a 4G ram and 500G hard with the Intel core 2 duo but Ubuntu is very very slow in my laptop I try Ubuntu studio Ubuntu 14.04 Ubuntu 14.10 Ubuntu 15.04 instead Windows operation work ...
0
votes
1answer
37 views

High uptake of memory in the nano process (root)

In Ubuntu server 14.04 have a high consumption in the process called nano (root), which is consuming too much memory RAM. Why this happens? And as I controlled?, i have a server with 5 gb in ram and ...
0
votes
1answer
57 views

See processes which use device

I have this (hopefully) irrational fear someone might hijack my webcam, especially since some of my colleagues started to put some tape around theirs. For some reason I am sometimes not able to ...
3
votes
0answers
54 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 ...
3
votes
0answers
58 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 ...
2
votes
0answers
48 views

Is a Beowulf cluster a solution for me?

Background I'm an undergrad working on an scientific experiment. Till now I was pilot testing our one of the program on Ubuntu 12.04 and now I need to deploy it. The PC on which I tested the program ...
2
votes
0answers
228 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 ...
2
votes
0answers
528 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
525 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 ...
1
vote
0answers
80 views

Unusual behave - Virus Like

I am facing a very strange behave on my Ubuntu 14.04 LTS box. I have an IPTV system providing cable TV and Internet through a router. My Ubuntu box is connected to the router and provides file serving ...
1
vote
0answers
346 views

Process “/bin/sh -e /proc/self/fd/9” - what starts it and why?

I have a process /bin/sh -e /proc/self/fd/9 that runs on my system. sh -e /path/to/file in dash (which sh is symlinked to on my Kubuntu 14.10) just tests for existence of a file. In /proc/self/fs I ...
1
vote
0answers
90 views

incron tab won't fire

I'm trying to get incrontab running, but it won't work. This is the error I get: access denied on ~/propt/apo/feeds - events will be discarded silently and this is the line in incrontab I want to ...
1
vote
0answers
57 views

What would cause a system freeze from navigation to /proc?

This is really driving me crazy, if I pull up nautilus and navigate to /proc, my system will completely freeze up. The only way to get out seems to be to SysReq RSEINUB, but sometimes even that ...
1
vote
0answers
51 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
89 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
274 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
6 views

what is status “ fsnotify_mark_destroy ” in wait channel?

Recently Iam seeing lot of "fsnotify_mark_destroy" as the wchan state for process .May I know more details on this status
0
votes
0answers
35 views

Can Wine manage Linux programs? (Maximise, Minimise, Restore, End)

I am trying to make some sort of Desktop Environment using a Windows program. However, there's something I was worried about. If I were to use this as a Desktop Environment, I would need to manage all ...
0
votes
0answers
16 views

DropbBox suddenly restarted with “Killed” message

I have installed DropBox with: cd ~ && wget -O - "https://www.dropbox.com/download?plat=lnx.x86_64" | tar xzf - And it normally works fine, but today when I was syncing with my online ...
0
votes
0answers
25 views

Trying to execute a process with pkexec asynchronously and get 'Refusing to render service to dead parents'

I'm trying to execute a process as root from my application that runs with regular privileges using pkexec. When I invoke pkexec synchronously everything is fine but when I run it asynchronously with ...
0
votes
0answers
47 views

What in install.sh in Kubuntu 14.04?

My laptop fan is sometimes loud when running Kubuntu 14.04, I guess it is because of one process taking 12-13% of CPU memory. I am new with KDE/Kubuntu. What is that? Should it be running like ...
0
votes
0answers
6 views

Screen turn off during Restore

I just reinstalled my ubuntu 12.04 and during the back-up restore my screen just turned off but my computer is still working. The hard drive's light is off. I guess its no longer in use. It's has been ...
0
votes
0answers
34 views

strange process of making a slow network

whether this process, making the connection to be slow. how to eliminate it permanently, I have used comment kill -s 9 [PID]. but reappears help me please. tks PID USER PR NI VIRT RES SHR ...
0
votes
0answers
142 views

“asking all remaining processes to terminate…” problem again with 14.04.1 LTS

I tried install ubuntu 14.04.1 LTS on my laptop. the installation process was a breeze. however, after rebooting at the prompt "reboot to use the system" when installation complete, it stuck at ...
0
votes
0answers
51 views

adding and deleting users problem

I have a problem with users this problem is that I can't add or delete them. When I try to add or delete them I have those logs: I searched it on the internet and I found that these problems are ...
0
votes
0answers
187 views

Can't stop Apache

I just dump here the code: root@xxx-linux:/opt/lampp# ./lampp stopapache XAMPP: Stopping Apache...fail. apachectl returned 1. root@xxx-linux:/opt/lampp# It surely works, because it parses the ...
0
votes
0answers
62 views

How to limit CPU usage for a process BEFORE starting it?

I read a few ways to limit CPU usage for a process, but all of them work after the process has started. I am looking for a way to do it before the process starts. Any ideas? Sorry if has already been ...
0
votes
0answers
20 views

How to Terminate the Child process using ISR from parent process?

I wanted to create a C program to terminate a child process after specific time period (alarm()) using user defined ISR(Interrupt Service Routine) of parent process. How to do it?
0
votes
0answers
79 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
27 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
53 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
6 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
16 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
15 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 ...