Top and load average mismatch?

A

Anatoly Sidorov2017-07-02 11:57:00

linux

Anatoly Sidorov, 2017-07-02 11:57:00

Good afternoon!
There was a problem on Ubuntu-1404-trusty-64-minimal, LA jumps up to 7-8, and no one creates such a load on the processor in top / htop. How can you diagnose and determine the source of the load?
Thank you.

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2 answer(s)

D

Dmitry, 2017-07-02
@sidan

Check the value of wa in top. And it would be great to accompany the question with copy-paste or a screenshot.

V

Vladimir Zhurkin, 2017-07-02
@icCE

>How can I diagnose and determine the source of the load?
I would connect any monitoring system to determine at what point and for what reason the values are jumping. As an option, the easiest way to assemble monitoring is from a bunch of Telegraf (agent) - InfluxDB - Database and grafana as an output. ( https://www.influxdata.com https://grafana.com )
You may have a load at a certain moment and htop/atop/top etc. will not show it right away.
Alternatively, you can look at the value in cat /proc/loadavg
You can display everything by core - mpstat -P ALL
Examples of where to start and how to analyze
https://firstvds.ru/technology/nagruzka-na-server-...