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Questions tagged [atop]

14 questions
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Strange Linux disk statistics on EBS i/o credit exhaustion

We have T2 instances (Linux 4.9.20-11.31.amzn1.x86_64) on AWS EC2 which exhaust their i/o credits due to disk reads. It may well be that we have excessive reads on these nodes, so nothing strange about this in itself, but the result on the processes…
Bittrance
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How to change interval of atop log?

My system is centos 7.4 with atop 2.3.0 I want to change atop log interval from default 600 to 300,then I vi /usr/share/atop/atop.daily as below: #!/bin/bash CURDAY=`date…
kittygirl
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Config file for ATOP deployment on AWS Elastic Beanstalk

SOLVED I need ATOP to install on EC2 the instances when the machines deploy from Beanstalk. AWS support only had the link below to follow, but it doesn't show how to deploy in the ebextensions config files. Has someone already done this and have a…
Kliqks
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1 answer

atop: how to compress or hide the processors at top on large machines?

Header lists all CPUs/cores and keeps re-sizing as I go back in time with t and T. I read though the help and tried searching. How to hide that header?
Aleksandr Levchuk
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What defines the "interval" when playing back Performance Co-Pilot data in pcp-atop?

I have PCP (Performance Co-Pilot) recording performance metrics on a RHEL 7 host. The recording cadence is set to Y seconds here: /etc/pcp/pmlogger/control.d/local When I copy the performance metrics logs to another machine I'm able to analyze the…
Dennis Dragonbain
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Atop shows MDD stuck at 100%

After investigating a load spike on my CentOS 7 server, I ran atop and noticed something odd. It is reporting MDD for my logical volume (md127) maxed out at 100% all the time. The other disk tests I ran seemed fine. It is a RAID1 config with two…
Grindlay
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Where is my bottleneck: RAM, CPU or disk?

I have a 32 core, 64 thread, 128GB RAM system with internal SSD. I'm running 64 data mining/simulation jobs in parallel that each load 1GB from disk and run for about 5-10 minutes . I want to know if I'm bottlenecked by CPU, disk or RAM. I have the…
JacksonCounty
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atopsar on Ubuntu 18.04 not showing disk activity

I run Ubuntu 18.04.1 LTS on a AWS EC2 instance (t3.large) myserver:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic I've installed atop with its…
Aldo
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atop 2.4.0 time interval

In latest version atop 2.4.0 (Repository - epel, CentOS 7) I can't change time interval through config file. I set "INTERVAL=60" in /etc/sysconfig/atop, restart service, but no effect, interval stay on default value 10min (600sec) In version 2.3.0…
Pavel Gromov
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What's the significance of the *initially* displayed data when launching atop?

I've just started using atop to try to get to the bottom of some system bottlenecks. I've found https://linux.die.net/man/1/atop which is very useful and explains most of what it does just fine. What I'm curious about is what data atop shows when…
Codemonkey
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Issue with Atop on Debian

I am having an issue with Atop installed on Debian Jessie which consumed a lot of disk. After my investigation I found something: Many log files not being compressed There are many log files which are stored in /home/logs/atop/, however they are…
Kuroboo
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Atop command run inside docker shows network speed as 0 Mbps

I parse atop inside my Java application to get system load, network speed and so forth. Recently I started deploying my app using docker containers. When I ssh in to the docker and run the atop, I notice (shown on attached image) atop shows sp 0…
printfmyname
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When using atop as a systemd service it only runs and logs to file once

I am on CentOS 7 and using atop v2.6.0 If I run atop manually with the following command everything runs as expected and the log is written to every 10 seconds: /usr/bin/atop -w /var/log/atop/atop_20210320 10 However when running atop as a service…
Pel
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Why atop shows high CPU but sum of individual processes %CPU far smaller?

How can the sum of processes' CPU-% usage be lower than the total CPU load, according to atop and top, please? I have a CPU reaching very high load (87%, for several hours) even though the sum of the individual processes as shown by atop is muchs…
jucor
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