9
1
if press h inside htop for quick help:
CPU
Blue : Low-priority threads
Green : Normal priority threads
Red : Kernel threads
Turquoise : Virtualization threads
but yellow?
IvanTrofimov
Posted 2016-04-07T10:22:42.167
Reputation: 173
1
Making an educated guess: you've got htop's detailed CPU time display on. Under the Black Night colorscheme, yellow is io-wait. Which makes sense for a database server.
KJ4IPS
Posted 2016-04-07T10:22:42.167
Reputation: 801
Yes, my VPS provider had bad SSD or something else. I've changed him. Yellow meant io-wait, you are correct. – IvanTrofimov – 2019-09-04T15:10:27.287
8
In my case, yellow means that the CPU time is spent on virtualization (for VDS) and CPU is lost. Contact your hosting provider.
IvanTrofimov
Posted 2016-04-07T10:22:42.167
Reputation: 173
2That's called "steal" time. It's CPU time that is unavailable to your instance due to other people making heavy use of the CPU on the same physical machine. Upon request, a decent VPS provider may move your instance to a host with less CPU contention; I know mine (Linode) would. – bwDraco – 2016-04-11T04:31:53.933
ServerFault dupe: What exactly do the colors in htop status bars mean?
– DavidPostill – 2016-04-07T10:30:49.323This depends on the htop colour theme in use (default) and the terminal color scheme. – DavidPostill – 2016-04-07T10:34:14.653
1In fairness the 'dupe' doesn't have any top level answer that addresses the 'yellow' for CPU issue. You have to dig into the comments to get the answer below. – russellpierce – 2017-11-19T03:55:40.620
1How can we remove the "dupe" flag? That other question doesn't mention yellow cpu. – falsePockets – 2018-12-14T07:11:19.597