top is a Unix/Linux/BSD program to show what processing are running. It can show the top users of CPU or memory.
Questions tagged [top]
302 questions
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digitalocean server cpu is 75% all the time
I have a nice server in digital ocean, it's the 1GB ram size.
It has installed: php, mysql, nginx, supervisored, beanstalkd as I installed.
But the problem is the I see that all the time the cpu is on 75% usage
and I look at the processes, and…
Tzook Bar Noy
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how to check if a process with heavy io usage is running properly
I am now managing a computer cluster for scientific computing. Some processes in the cluster need heavy io usage. Now I find such a process:
Its state changes rapidly between DOWN and RUN and its cpu usage changes rapidly between 1% and 100%.
In…
atbug
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Why top output different from sar output?
This is SLES11sp3 system.
The command top shows the load average of 17+, as shown below:
#top
top - 11:59:14 up 19 days, 21:55, 40 users, load average: 17.09, 17.29, 19.22
Tasks: 514 total, 1 running, 512 sleeping, 1 stopped, 0…
Wei
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How to understand details of CPU usage
I have a VPS server. At the CPU usage chart I see long periods of 50% CPU usage that are not related to chart of visitors of my site: http://c2n.me/iRJplq. I checked top and most of the time fastcgi dispatcher that call python scripts takes most of…
dbf
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Apache TOP command time format?
When running top on an Apache server, what is the time format for the output?
For instance, is it minute:second.second?
https://i.stack.imgur.com/fMbcf.png
Edit:
I'm running on Ubuntu 14.04 and the header of the column is TOP+.
Euser3
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high mysqld cpu usage after moving to new server
Just moved to a new (more powerful) server with only one website running on it, no changes on the website, but now I got a horrible high CPU load and I can't find out why.
top:
top - 22:54:08 up 1 day, 3:08, 1 user, load average: 4.19, 3.66,…
lickmycode
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CentOS 6.4 64-bit Memory Usage really not adding up
I recently migrated hosting providers and in the process my distribution changed from CentOS 5.9 64-bit to CentOS 6.4 64-bit. Despite having a little more RAM (1 GiB rather than 768 MiB) the new VPS running CentOS 6.4 is always out of memory…
Alton XL
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How can I find out what Zimbra process (specifically "b") is doing?
My Zimbra mail server (8.0.2 Community Edition) recently started to spawn an interesting process called "b".
top - 11:04:44 up 19 days, 18:47, 1 user, load average: 6.25, 6.38, 5.57
Tasks: 131 total, 2 running, 129 sleeping, 0 stopped, 0…
Cninroh
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What does TOP's DATA column mean?
I'm trying to figure out the meanings of all the different classifications of memory such as VIRT, RES, SHR, AND DATA. While I generally understand the first 3, I have no idea what the DATA column means other than it's official definition as DATA =…
blacktie24
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top output seems fine, yet server is overloaded
This server I am benchmarking gives no obvious signs of getting overloaded at a first glance.
top output:
top - 22:48:25 up 5 days, 3:41, 3 users, load average: 3.19, 3.34, 3.25
Tasks: 146 total, 1 running, 145 sleeping, 0 stopped, 0…
kellogs
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Running "top" memory seems high?
I'm not a Ubuntu expert, but I've just ran top on a Ubuntu server box and Terminal has highlighted the results in red, it looks pretty high to me.
Is this right? I'm only really running Apache and Node.js on there. What can I do to bring down the…
James
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Limit TOP to specific processes (without static PIDs)
I would like to monitor specific processes via TOP on our application servers via TOP. Currently, I have been using the following in BASH to monitor just the processes that I am interested in:
top -p $(pgrep PSAPPSRV | tr "\\n" "," | sed 's/,$//')
I…
gdieckmann
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Many 'yum' processes running constantly
I am getting this output when I run top and trying to work out if it's problematic and why it would be doing this in the first place, all the 'yum' instances seem to always be there:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ …
u2sonderzug
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Is this server using too much RAM or virtual memory ? (screen attached)
I have a VPS with 512MB of ram 40GB storage 1CPU, I run a small domain parking service on it.
It is on CentOS, MySQL, Apache, etc.
Now my hosting provider claims that my server is putting too much load on their storage system and they had to reset…
adrianTNT
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Does 'top' show memory / CPU usage of parallel processes on cluster?
Recently inherited a neglected cluster: I'm trying to do some sanity checks on it. Running a benchmark on node X and then running 'top' shows high cpu usage from mpi processes (as expected), but on node Y top shows 0% usage.
Is this normal? Is…
Dan Anderson
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