Last call to make your voice heard! Our 2022 Developer Survey closes in less than a week. Take survey.

Questions tagged [cpu-usage]

The amount of processing units of the CPU used to execute a task and how long it takes.

Filter by
Sorted by
Tagged with
-2 votes
0 answers
26 views

cpu utilization is going too high whenever running videos from any browser or even ofline & etc in ubuntu:20.04... Any one can provide any solution?

UID PID PPID C STIME TTY TIME CMD root 1 0 0 14:35 ? 00:00:02 /sbin/init splash root 2 0 0 14:35 ? 00:00:00 [kthreadd] root ...
user avatar
0 votes
1 answer
30 views

Unknown process on Centos 7 VPS "sysnetd" using lots of cpu

So I cant seem to find any information ANYWHERE on what this process, "sysnetd", does. I've run LSOF etc but nothing seems to provide any info I know what to do with. The /proc/pid folder ...
user avatar
0 votes
0 answers
21 views

Tool to calculate cpu time between certain ETW events

I'm trying to measure the kernel and usermode time spent in certain blocks of C++ code. I know about GetProcessTimes but since there's ETW i could also provide events for enter and leave of the blocks ...
user avatar
0 votes
0 answers
16 views

How to track down CPU usage, as top is not showing any details of this usage?

I'm operating a VPS and the admin console shows constant 90%+ CPU usage even though there are no applications running as such. I attempted to track this down via top but it just increased the mystery ...
user avatar
  • 1
1 vote
2 answers
211 views

100% CPU load caused by service "perfctl"

I am running a dedicated High Performance AMD Server with Ubuntu 20.04. since a few months. Suddenly tonight CPU shoot up to 100% until the point that I killed the service "perfctl" that ...
user avatar
  • 1,983
0 votes
0 answers
233 views

100% CPU usage from iowait caused by Nginx, not solved by turning sendfile on and directio off

I run a webservice that performs some basic image processing operations. The webserver first accepts image uploads from users and temporarily stores them. A backend server then downloads the image ...
user avatar
0 votes
1 answer
85 views

Uneven CPU usage with NGINX

On my CentOS 7 server, the load on each core is unequally distributed, as seen in the screenshot: some nginx worker seem to take way more load than other. irqbalanceis enabled, hyperthreading disabled....
user avatar
1 vote
1 answer
43 views

How CPUQuote works in systemd

I'm setting up a .slice file for systemd. I want to restrict the slice to a certain amount of CPU time. But it's not clear to me from the systemd docs whether the percentage given to the CPUQuota is ...
user avatar
0 votes
1 answer
39 views

How to identify cause of sudden CPU utilization

I have a production server for a web application configured in AWS EC2 instance. I was running this for years and suddenly since today morning it is showing some spikes in CPU usage and application ...
user avatar
-1 votes
1 answer
56 views

Load average greater than number of CPUs

Why load average is greater than number of cores CPUs? But, htop command is not showing which process are using so much CPU load average.
user avatar
0 votes
1 answer
46 views

Downtime on an EC2 instance

Recently I had an issue on an EC2 instance. The site running there was unavailable for 2 hours: CPU utilization for the past week: The rest are around the time it happened: The systemd journal ...
user avatar
  • 1,715
0 votes
1 answer
48 views

How to check what triggered high CPU usage on past days, on Digital Ocean?

I want to investigate what caused a high cpu usage for several hours on 1/16. Digital Ocean graph shows a prolonged high cpu usage in the course of about 12 hours. Is there a log somewhere that I can ...
user avatar
  • 103
0 votes
1 answer
98 views

How to calculate CPU utilization for an application in a multicore system

On 8-core server, 0-3 are configured as isolcpus and remaining cores (4-7) are available for system and user processes to run. My application has multiple processes which will run on any one of the ...
user avatar
  • 101
0 votes
1 answer
159 views

CPU Limiting & kswapd0 Advice Saught

Through hours of testing, I have found that the nextcloud desktop sync client for ubuntu 20.04 (appimage or ppa) both seem to have a bug to where... if a common nextcloud file sync error occurs , ...
user avatar
1 vote
1 answer
70 views

Does increasing cpu affect load average?

for example I have a 16 core cpu with load average 10. If I upgrade cpu to 32 core and if ( same traffic , same load , same everything ) , should load average drop or will it stay the same ?
user avatar
0 votes
0 answers
21 views

Tomcat java consuming more Memory

enter image description herei am using aws in my tomcat application java eats more memory and more cpu utilization. my server configuration: 8 vcpu amd 16gb Memory i increased java heap size up to ...
user avatar
  • 1
0 votes
1 answer
119 views

Lots of suspicious GET requests that overload my CPU

I have a DigitalOcean droplet that hosts a small website with pretty much no traffic. Yesterday, I received an alert that my CPU was over 95%. Normally it runs between 1% to 5%. In the "bandwidth&...
user avatar
  • 101
0 votes
0 answers
28 views

How to use sar to monitor cpu and memory usage over a period of time?

First, my top/htop shows that the uptime is: 23 days Then I do: ls -l /var/log/sa/ | wc -l 60 My first question is, is each file under /var/log/sa directtory storing utilization data for each day? ...
user avatar
  • 101
0 votes
1 answer
46 views

High cpu temperature and temperature difference

On a cluster I am working on there is a node which is showing high CPU temperature. The node has 2 Intel(R) Xeon(R) CPU E5-2680 v4 @ 2.40GHz. The sensors command from lm-sensors is showing that one ...
user avatar
  • 113
0 votes
0 answers
18 views

VM Instance - Create CPU Usage alert for specific users

I'm working on a project where alerts are received each time a VM Instance CPU usage surpasses a certain limit. However, all alerts are transmitted to the whole team. My goal is: Manage alerts as for ...
user avatar
0 votes
0 answers
58 views

Cpu utilization and Cpu load average very high in spite all applications are shutdown

we have a RHEL 7.6 VM machine , server with 16 GIGA RAM and 8 CPU's we notices that CPU utilization is high on this server , and also the CPU load average load average is around - 50 - 60 , and the ...
user avatar
2 votes
2 answers
411 views

100% CPU usage reported, but no processes using the CPU

I am running Debian 10 (kernel 4.19.0-18-amd64) on bare metal and I have recently noticed strange CPU usage. Screenshot of htop, sorted by CPU% Screenshot of top, sorted by CPU% As you can see, 100% ...
user avatar
  • 21
0 votes
0 answers
19 views

How to get cpu usage per core or normalize based on frequency in Windows?

We were able collect windows trace (ETW trace/ ETL) and it provides a lot of information about the system and resource usage by the processes. Is there any way to extract cpu usage time per core (not ...
user avatar
2 votes
1 answer
107 views

Spikes on softirqs RCU monitored with NetData on proxmox container

I have a server with the following characteristics: https://www.soyoustart.com/it/offerte/1801sysgame05.xml Processor Intel i7-4790K RAM 32GB DDR3 1333MHz Traffic Unlimited Anti-DDoS Included Disks ...
user avatar
  • 121
0 votes
0 answers
65 views

Multiple core overload on Ubuntu

I have a really strange behavior of the server. I run Apache, MySQL, WordPress on it. And recently, it has had a lot of freezes. MySQL/Apache shows high CPU usage (out of 24 cores - 2400% cpu% ...
user avatar
  • 101
0 votes
2 answers
217 views

Is 'Max Cpu' at 100% normal?

Below are two images from our Azure 'App Service Plan', which hosts our application. We recently tried scaling up, but it did not solve the issue seen below. Our 'Max CPU' peaks throughout the day, ...
user avatar
0 votes
2 answers
1k views

High CPU usage by Apache/MySQL

I have a problem with CPU usage on the website that uses WordPress, Apache, and MySQL. During the day, from time to time, CPU usage by MySQL and Apache goes up to 2400% (I have 24 cores in total), the ...
user avatar
  • 101
0 votes
0 answers
56 views

Cloud setup for occasional high to extreme CPU-intensive tasks (instant vertical scaling?)

I have a business workload that has very low CPU-usage most of the time, and occasionally needs to burst to very high CPU-usage. It currently runs on a dedicated server with 32 cores, but was hoping ...
user avatar
  • 161
-3 votes
1 answer
37 views

Is there a program to diagnose and summarize why my mchine is slow? [closed]

Is there a program that will tell me why my server is slow? What is being over utilized? CPU / Memory / Disk / Network ... and what processes are driving that utilization? I want a program that can ...
user avatar
  • 95
0 votes
1 answer
47 views

Benchmark script performance against CPU/RAM consumption for different parameters

I have an image processing shell script that can be provided with different sets of parameters that all produce a valid output for me. I'm trying to identity the set of parameters that has the lowest ...
user avatar
2 votes
2 answers
4k views

Can I have multiple threads running in parallel in a pod with a CPU limit set to 500 millicores?

I have a multi cores Kubernetes cluster, inside it I have multiple pods configured with a CPU limit of 500 millicores: resources: limits: cpu: "500m" It is ...
user avatar
0 votes
1 answer
297 views

EC2: Relatively small network out spikes cause 100% CPU usage

Background Hello, I have a server I'm running on a free EC2 instance. I'm using nginx and passenger/rails as my web server and application server. The server receives little traffic (still in ...
user avatar
  • 123
0 votes
1 answer
34 views

sbin: root@policykit -1/9 high CPU [duplicate]

The process "sbin: root@policykit -1/9" takes high CPU in our Ubuntu 18.04.4 LTS server. Can anyone help to find what it is? Thank You.screenshot
user avatar
-1 votes
1 answer
73 views

Why one of the cores is running full on (100%) during development? [closed]

I'm developing an app (Python) which uses face recognition and OpenCV libraries. I can see even after the app finished processing one of the cores keeps running full on for another 10 mins or so. ...
user avatar
  • 101
-1 votes
1 answer
203 views

Proof CPU maximum frequency in VM

CPU-Z on some customers VM for DB server is constantly showing 2,8 GHz CPU frequency. While with TurboBoost enabled it could be 3,6 GHz by the Intel documentation. VM administrator is telling me, that ...
user avatar
1 vote
0 answers
36 views

Assigning CPU and MEM usage variables in PBS/TORQUE

I asked this question at meta.stackoverflow.com; they said it was the wrong forum I am using the FALCON assembler (for genomes by PacBio; https://github.com/PacificBiosciences/pb-assembly) and it's ...
user avatar
0 votes
1 answer
397 views

Hyper-v VM high CPU usage in Windows Server by task manager?

Windows 2012 std host with Hyper-V. Hyper-V guest VM is Windows server 2019 std Both the host and the VM are setup as separate SQL & IIS application platforms with some light add-on tools such as ...
user avatar
  • 301
1 vote
1 answer
157 views

Laravel/PHP process on debian 10 only ever using one of two CPU threads

I am running a Debian 10 Buster server on a google VM with PHP 7.3 Apache2 and MySQL 8. On the server, I am running Laravel 8 as an API for two clients. I recently upgraded the VM to an n2-standard-2 (...
user avatar
  • 11
0 votes
1 answer
115 views

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 ...
user avatar
  • 3
1 vote
1 answer
332 views

High CPU Usage on Digital Ocean Web Server

We have a Laravel website which is currently hosted on Digital Ocean (Nginx). The droplet is a 2 vCPUs, 2 GB Memory, 60 GB SSD, 3 TB transfer running PHP 7.4. We are seeing a steady increase in CPU ...
user avatar
0 votes
1 answer
6k views

PHP-FPM using 100% CPU on a server that has 16 threads

I have a server that has 32 GB of RAM and 16 threads. This server has an API in PHP that receives many requests from other external APIs, I made a configuration in PHP-FPM to support all these ...
user avatar
0 votes
0 answers
36 views

High average load + low cpu usage + low disk usage + normal network usage + normal memory usage = ok or not?

I see high CPU average load several times a day on my server. For example, 21:20 and 22:45 on the following figure: However, my CPU, disk, and network are all OK: Disk Network CPU Memory Also do ...
user avatar
  • 123
1 vote
1 answer
549 views

Samba and luks encrypted disk together: Huge performance loss despite plenty of CPU resources, LUKS and samba alone works as expected

Setup: SSD encrypted with luks aes-xts 512 bits (256 bits AES key), ext4 filesystem dd write performance of 138 MB/s, CPU usage 97-100 % dd if=/dev/zero of=testfile status=progress bs=32M count=128 ...
user avatar
  • 157
0 votes
1 answer
195 views

Increased CPU interrupts, degraded performance on upgrade to Symfony flex

We're upgrading our Symfony 3.4 app (LAMP w/ opcache/php-fpm) to flex (as per https://symfony.com/doc/current/setup/flex.html). In load testing, we're seeing increased CPU usage, particularly system ...
user avatar
  • 1
1 vote
1 answer
133 views

Get CPU load percentage on Windows 2008r2 Server - WMIC doesn't work?

I found the command wmic cpu get LoadPercentage was recommended as a way to get a CPU load estimate from a command line. It works as expected from a Windows 10 system: c:\>wmic cpu get ...
user avatar
  • 425
0 votes
0 answers
35 views

Amazon EC2 instance unexpectedly using CPU and network (not http). How to analyse?

I would like to try and better understand how to analyse the following situation (which is no longer occurring) CPU pinned at 50% all night (100% of 1 core I suppose) according to Cloudwatch. ...
user avatar
  • 101
-1 votes
1 answer
118 views

KVM with 1 vCPU has CPU load above 1

I have a KVM running with 1 vCPU on a machine with 4 cores. lscpu in the KVM gives me 1 CPU with 1 core : Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte ...
user avatar
1 vote
0 answers
104 views

High usage IRQ/CPU on Centos 8 router BGP

PRC | sys 0.34s | user 0.10s | | #proc 124 | #trun 2 | #tslpi 93 | | #tslpu 0 | #zombie 0 | clones 0 | | #exit 0 | CPU | sys ...
user avatar
  • 11
0 votes
1 answer
76 views

My Google Cloud Compute Engine Wordpress based website keeps askiing for more cpus and more memory - GBs of it

I have a website that has had about the same traffic all year, yet on the GC Compute Engine page it keeps asking for more and more resources. Right now it has n1-highmem-16 (16 vCPUs, 104 GB memory) ...
user avatar
3 votes
1 answer
242 views

Web server CPU Utilization slowly increasing with LAMP stack?

I made a ton of changes to my website this year and noticed that my CPU Utilization has been gradually increasing for a couple of months (it slowly went from around 0% to 60% in about 2 months). After ...
user avatar

1
2 3 4 5
14