LinuxQuestions.org
Review your favorite Linux distribution.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Laptop and Netbook
User Name
Password
Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).

Notices


Reply
  Search this Thread
Old 08-19-2019, 12:47 PM   #1
paintpenguin
LQ Newbie
 
Registered: Jan 2018
Location: UK
Distribution: Arch
Posts: 21

Rep: Reputation: 2
high cpu use (idle) on new asus tuf fx505dy


Hello :-) First laptop, and concerned at idle cpu use, and how relates to bad battery life. Wifi/vpn active, AC plugged in or not, notes and clock widget, and one small text file ... constant spikes of high use, 10-25%+ of cpu, and up to 60%+ at times ... 12% often seen during changes. On main desktop (arch/lts kernel/kde), idle cpu use very low indeed, 0-2%.

Arch (beginner), latest kernel (having to run so can boot; prefer lts), kde. Asus tuf fx505dy, ryzen 5/vega 8 (and unuseable RX560!), bios 304.

EDIT: looking for ways to increase performance, saw about turning off mitigations, so, incase helpful to anyone new to this, I did
sudo nano /etc/default/grub
and
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash mitigations=off"
then regenerated grub.cfg ...
grub-mkconfig -o /boot/grub/grub.cfg

CPU now showing 0% on idle. Battery (full) shot up to showing 10 hrs battery left, then dropped back to the usual 2, grrr. But then moves to 3.33 hrs, which is the best so far, then back to 2.15/2 etc.

Last edited by paintpenguin; 08-19-2019 at 01:45 PM.
 
Old 08-19-2019, 10:02 PM   #2
Skaperen
Senior Member
 
Registered: May 2009
Location: WV, USA
Distribution: Xubuntu, Slackware, Amazon Linux
Posts: 1,903
Blog Entries: 21

Rep: Reputation: 125Reputation: 125
sounds like you need to explore and find out what is using so much CPU. my last heavy CPU usage was cause by Firefox visiting a badly programmed web site. it managed to reach 366% (of 4 cores). the "top" command in a terminal shell might be useful.
 
1 members found this post helpful.
Old 08-21-2019, 09:31 PM   #3
paintpenguin
LQ Newbie
 
Registered: Jan 2018
Location: UK
Distribution: Arch
Posts: 21

Original Poster
Rep: Reputation: 2
Sorry, I don't seem to be getting notifications, but just saw your response, and, wow, 366% must be some kind of record! :-) Thanks for advice too. Will keep an eye on things.
 
Old 08-21-2019, 09:50 PM   #4
frankbell
LQ Guru
 
Registered: Jan 2006
Location: Virginia, USA
Distribution: Slackware, Ubuntu MATE, Mageia, and whatever VMs I happen to be playing with
Posts: 15,326
Blog Entries: 25

Rep: Reputation: 4391Reputation: 4391Reputation: 4391Reputation: 4391Reputation: 4391Reputation: 4391Reputation: 4391Reputation: 4391Reputation: 4391Reputation: 4391Reputation: 4391
The command line programs top or htop should help you identify what processes are using your CPU cycles.

See man top or man htop for more.

Last edited by frankbell; 08-21-2019 at 09:52 PM.
 
1 members found this post helpful.
Old 08-22-2019, 10:23 AM   #5
paintpenguin
LQ Newbie
 
Registered: Jan 2018
Location: UK
Distribution: Arch
Posts: 21

Original Poster
Rep: Reputation: 2
Quote:
Originally Posted by frankbell View Post
The command line programs top or htop should help you identify what processes are using your CPU cycles.

See man top or man htop for more.
Thank you frankbell. Will definitely take a look at those packages. :-)
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] High CPU load, top not showing any high CPU process angel115 Linux - Server 8 10-12-2015 12:58 AM
uptime command shows high cpu load while atop shows cpu idle occam25 Linux - Newbie 4 09-19-2014 09:30 PM
[SOLVED] High CPU load, but low CPU usage (high idle CPU) baffy Linux - Newbie 5 03-13-2013 09:24 AM
High load - but CPU 99% idle? Boss Hoss Linux - Hardware 6 05-24-2004 04:39 AM
High idle cpu load in 2.6.4? geekzen Linux - General 4 04-10-2004 11:54 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Laptop and Netbook

All times are GMT -5. The time now is 08:57 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration