Unix/Linux utility providing a "dynamic, real-time view of a running system".
- Manual page (source for quote)
Questions tagged [top-command]
84 questions
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Low CPU, low RAM, low IO, but bad performance, why?
I have an issue with regards to the performance of my Linux Centos Apache server. I have a program (written in c) that does many http requests simultaneously. This process on itself seems very efficiently as if I can do 500 requests to an external…
BastiaanWW
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How does the top command name the process that is being executed
How does top name the command that is being executed I mean the last field of the command.
How does it name the command (like eclipse,java etc.) , are there any other commands which show the same not like ps command which shows the complete process…
user2081934
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Unix: I want capture the output of top into variable instead of file
I want to capture the output of top into a variable instead of a file.
And I tried the below
top -n 1 -b | head > top_op
echo "inside: $top_op"
$top_op | grep Cpu > Cpu
echo "$Cpu"
But my output is just
Inside:
Suren
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1 answer
Unix top command column selection from with another C program?
Is there any way to select the columns that the standard unix top command displays without entering interactive mode. I would like to be able to call the top command from within another C program.
JohnDoe
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massif and top memory usage differences
I am tracing how much memory an object is using. I have simple program which simply instantiate the object and the delete it.
If I look at the output of massif or if I look at the virtual memory from top I get completely different result. Do you…
Ruggero Turra
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1 answer
How to hide "idle" (both CPU and RAM) processes in top?
I have a linux command based on top that outputs my current tasks snapshot (I've assembled it from various SE topics so it may not be optimal but it works for me):
top -bn 1 -i | grep "^ " | awk '{…
DraxDomax
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2 answers
how to get all process information in linux?
I want to get all process information in a linux server.
PID, USER, CPU% , COMMAND ...
Exactly, I want to get these information in a python script. I tried
a,b = commands.getstatusoutput('top -n 1')
This gave me about 20 rows of results ordered by…
Swind D.C. Xu
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"top" command shows %CPU as 1360, is it normal?
When I check processes with top command I see a process with 1360 as %CPU percentage. Is it normal? How should I interpret this?
cavacetta
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working principle of top command in linux
I want to understand the implementation of top command in linux ie how it uses the procfs interface for displaying the top running processes.?what sources should i refer.
Ind
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