Unix/Linux utility providing a "dynamic, real-time view of a running system".
- Manual page (source for quote)
Questions tagged [top-command]
84 questions
293
votes
7 answers
Network usage top/htop on Linux
Is there a htop/top on Linux where I get to sort processes by network usage?
xxxxxxx
- 5,037
- 6
- 28
- 26
198
votes
11 answers
top -c command in linux to filter processes listed based on processname
top -c
Top lists all the processes, there are good options to filter the processes by username by using the option -u but I am wondering if there is any easy way to filter the processes based on processname listed under COMMAND column of the top…
user1615330
84
votes
18 answers
Limit the output of the TOP command to a specific process name
If you call the top command, you get all the running processes. But how can I limit the output only to a certain process name like "java"?
I've tried this
top -l 2 | grep java
but in this way you get only snapshots and not a continuously updated…
Alex
- 8,245
- 8
- 46
- 55
71
votes
3 answers
In Linux, what do all the values in the "top" command mean?
When you run top and see all running processes, I've always wanted to know just what everything actually means. e.g. all the various single-letter state codes for a running process (R = Running, S = Sleeping, etc...)
Where can I find this?
Aaron Fi
- 10,116
- 13
- 66
- 91
42
votes
10 answers
Inspecting Java threads in Linux using top
I am inspecting a Java process in Linux using
top -H
However, I cannot read the name of the thread in the "COMMAND" column (because it is too long). If I use 'c' to expand the full name of the process, then it is still to long to fit.
How can I…
Jake
- 15,007
- 22
- 70
- 86
36
votes
1 answer
What do top %cpu abbreviations mean?
Does anyone know what the 2-letter abbreviations mean in the %CPU line in the header above the top table of processes? Here's a sample output from running top.
top - 15:10:34 up 8 days, 5:11, 1 user, load average: 0.10, 3.80, 26.82
Tasks: 1…
Ray N. Franklin
- 595
- 1
- 5
- 13
28
votes
7 answers
A process command in top
The problem comes up when you run couple of python scripts. in top at command, it shows only 'python' with these scripts. How to rename a process or otherwise tag it so that I could tell them apart in top?
Cheery
- 24,645
- 16
- 59
- 83
28
votes
6 answers
Comprehending 'top' CPU usage
What does it exactly mean to have a 350% cpu usage (by a process) on a
4-CPU box? The process is a 'mysqld' which is currently being
'bombarded' by a simulated OLTP scenario.
Any pointers appreciated.
user59634
24
votes
3 answers
Top unix command ascending order
I am using Ubuntu 12.04 and have recently started working on bash. I need to display say memory or CPU in ascending order.
command : top
shift F, this shows window of all the column. I select n for memory and it is ordered in descending order. Same…
Death Metal
- 830
- 3
- 9
- 26
22
votes
7 answers
Change the ruby process name in top
I would like to change the name of the ruby process that gets displayed in the linux/unix top command. I have tried the
$0='miname'
approach but it only works with the ps command and in top the process keeps getting displayed as "ruby"
muesan
- 373
- 3
- 8
16
votes
4 answers
In *nix, what causes "sleeping" in top command?
What causes these sleeping processes that I see in top? If I were to call PHP's sleep() function, would that add to the sleeping count I see in top? Are there any disadvantages to having a high number in sleeping?
StackOverflowNewbie
- 39,403
- 111
- 277
- 441
15
votes
2 answers
RES != CODE + DATA in the output information of the top command,why?
what 'man top' said is: RES = CODE + DATA
q: RES -- Resident size (kb)
The non-swapped physical memory a task has used.
RES = CODE + DATA.
r: CODE -- Code size (kb)
The amount of physical memory devoted to executable code, also known as the 'text …
BruceAuyeung
- 155
- 1
- 1
- 7
12
votes
2 answers
CPU usage in top batch mode
I have a problem that makes me mad. I am running top in batch mode with the following command,
top -b -n 1
The problem is I can run top in batch mode 100 times but the CPU usage never changes past the original value. The memory usage changes as…
toc777
- 2,607
- 2
- 26
- 37
11
votes
2 answers
where does top gets real-time data
Where does top application gets it's data on Linux? I would be interested in real-time CPU load/pid data.(I read allmost all documentation in /proc/pid man page, but the info isn't there).
The pid is a jboss. I need the data lightweight (to be…
Mark
- 155
- 1
- 11
11
votes
7 answers
How to suppress the general information for top command
I wish to suppress the general information for the top command
using a top parameter.
By general information I mean the below stuff :
top - 09:35:05 up 3:26, 2 users, load average: 0.29, 0.22, 0.21
Tasks: 1 total, 0 running, 1 sleeping, …
sjsam
- 21,411
- 5
- 55
- 102