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

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6
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1answer
457 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
63 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
142 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
144 views

What is the “Browser” process?

What is the Browser process? Is the process safe or malicious? Thanks for help, Top results:
2
votes
1answer
476 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
459 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
78 views

Why is khubd process using too much of my CPU?

analyzing the process manager I found that the khubd process uses more CPU than other processes all that are running. It uses at least 25% and even uses around 40%. Does anyone know what this process ...
1
vote
1answer
73 views

What is Shotwell doing in background permanently

My mate is a new ubuntu user, primarily as alternative to not need to upgrade to windows 10. He uses his machine mainly for archiving and reworking of hundreds of photos as he is a hobby photographer. ...
1
vote
1answer
84 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
94 views

Creating a script involving the memory usage of processes

How can one create a bash script that displays the sum of memory usage for the processes which have PID<100?
1
vote
1answer
304 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
85 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
572 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
163 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
410 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
35 views

How to autostart node forever and use spawn() as sudo on Ubuntu?

My app periodically spawns a CasperJS scraper: spawn(CASPER_PATH, [SCRIPTS_PATH + fileName, '--ssl-protocol=any', '--user='+user, '--scrapeId='+scrapeId, '--pass='+pass], { ...
0
votes
1answer
15 views

Allowing processes that started through ssh to continue and log output in file

So this is a bit of a multi part question, I have a vps that I connect to through ssh to run a few processes on. I would like to be able to start the processes and close my terminal window but still ...
0
votes
1answer
170 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
82 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
131 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
278 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 ...
3
votes
0answers
63 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
64 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
154 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
525 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
586 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
601 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
28 views

HIbernation or Suspending & Restarting for NON-root users

My purpose is to run a main shell script which calls many sub-processes like other shell scripts, perl sources, and compiled c++ files. I want to run the main shell script "run.sh" at some line in ...
1
vote
0answers
209 views

Allowing multiple programmes to access /dev/video0 simultaneously?

I've just recently noticed that video from my webcam does not always work in a programme, so long as something else is accessing it. Let's explain this with some usage examples: I'm running uTox (a ...
1
vote
0answers
193 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
854 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
185 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
112 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
73 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
104 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
470 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
26 views

Kill process: SIGKILL does not work

There is a strange thing that never happened to me. kill -9 PID does not work. The process is still there. I tried also with htop -> F9 -> Enter but nothing. How can I resolve this problem? ...
0
votes
0answers
30 views

Ubuntu: i can't kill some processes and Apache doesn't restart

I can't restart Apache: if i try to start it, the error is this: (98)Address already in use: AH00072: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down ...
0
votes
0answers
78 views

Strange Unama pocess in top

I am seeing a strange process called "unama" in my top program's output, however, I cannot seem to find any reference about this process on Google and it is consuming a fair amount of resources (30% ...
0
votes
0answers
88 views

Start a background process, write to stdin and read from stdout without blocking

I have a program which reads from stdin and writes to stdout. In my example it is cat. I want to have three scripts to do something like the following: start.sh cat would create a background process ...
0
votes
0answers
132 views

“socat” process using 100% of a CPU core on Ubuntu 15.04

Recently, my computer, which is running Ubuntu 15.04 with the GNOME desktop environment installed, has started running slowly. I wondered why this was happening and looked in gnome-system-monitor, ...
0
votes
0answers
19 views

Killing the process started with upstart

I use upstart to launch rails app with unicorn. This is the conf file in /etc/init/unicorn_rails.conf. # simple uWSGI script # http://uwsgi-docs.readthedocs.org/en/latest/Upstart.html description ...
0
votes
0answers
30 views

How to get the terminal (xterm with any emulator) to properly close processes?

I noticed that my terminal in ubuntu 15.04 (default terminal emulator, or terminator, so it appears to be an xterm issue) doesn't seem to properly close processes. For example, running gulp ...
0
votes
0answers
74 views

Boot Hangs Ubuntu Server 14.04

When I boot my server machine, it hangs unless I hit F12 at the POST screen and select the hard drive. There the grub menu shows up and I just select the first option, booting Ubuntu Server without an ...
0
votes
0answers
100 views

What data is being sent to Canonical with gvfsd-http and ubuntu-geoip-pr?

What data is being send to Canonical with gvfsd-http and ubuntu-geoip-pr? How do I read content of traffic sent to and from these specific processes? Output of $ lsof -i shows that my Ubuntu is ...
0
votes
0answers
32 views

killing process on port does not work

i am trying to kill a process that is using port 8180 to find the process i did: sudo netstat -lpn |grep :8180 Then i got the following result: tcp 0 0 0.0.0.0:8180 ...
0
votes
0answers
26 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
56 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
22 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 ...