Questions tagged [cpu-usage]
The amount of processing units of the CPU used to execute a task and how long it takes.
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WIndows 10 consuming large amount of CPU with explorer.exe [migrated]
I'm at a loss as to why my Windows 10 laptop is consuming so much CPU from explorer.exe instances. I've attached two screenshots showing five explorer instances using about 15% CPU each. I have ...
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Profiling CPU, memory, networking performance and generating reports
Background
I have a performance-intensive (i.e. consumes a lot of CPU cycles, memory, and network resources) application. Multiple instances of this application, along with some third-party vendor-...
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Intermittent CPU spikes on EC2 instances
We have an web app that runs in AWS Elastic Beanstalk and uses Java as backend. Intermittently, one app server behind the load balancer crashes due to the CPU being used 100%. After some analysis, I ...
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Is it possible to configure Windows “resource exhaustion detector” to detect and log high cpu events, rather than just low memory events?
Is it possible to configure Windows "resource exhaustion detector" feature to detect and log high cpu events, rather than just low memory events?
As some may know, if Windows detects a low memory ...
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1answer
476 views
I keep getting counter_cpu_share_used alerts in in Virtuozzo - do I have to take action?
On my Hosteurope vServer, I keep getting these counter_cpu_share_used alerts in Virtuozzo, basically whenever I actively use my vServer.
Screenshot
As you can see, I get red alerts all the time. It ...
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1answer
45 views
What does “CPU Minutes” mean exactly?
I'm actually trying to report cluster utilization in Slurm but i don't understand the metric CPU Minutes.
[root@XXXX]# sreport cluster Utilization Start=2018-12-01 End=2018-12-31
---------------------...
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1answer
54 views
Improving NGINX Throughput on a Single SSL Thread
We are configuring a file delivery server using nginx. The server will be serving large files over HTTPS.
We have run into an issue where we can only achieve around 25MB/s on a single HTTPS thread.
...
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10 views
HaProxy Configurations Error while setting up multi proc environment
I want to achieve 6000/sec Requests and trying to setup HaProxy with muli proc Settings but Getting this Error.
cpu-map expects a process number including 'all', 'odd', 'even', or a
number from 1 ...
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13 views
Performance monitor triggering a batch script
I've created a batch script which once triggered it'll send myself an Email, the issue i'm having is i'm trying to set up performance monitor to trigger the batch file if CPU usage has been over 80% ...
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1answer
49 views
perfmon - single thread utilizing max CPU - how to detect?
I work as a windows server admin. Part of my work is to maintan servers and react to monitoring alerts which are often about high CPU load. Sometimes it happens that some app or process gets stuck in ...
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2answers
41 views
Can a high load on a VPS be caused by the underlying infrastructure?
My VPS started to have random stints of high load (around 2-3, but the system becomes extremely slow, running ls takes like 30 seconds). I hadn’t changed anything on it, there was pretty much nothing ...
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How to find which processes caused the system slowdowns? To be used after reboot
For the last few days my Ubuntu 16.04 suffers random slowdowns that it prevents the apps from loading and doesn't even allow me to connect via SSH.
The only way I can resolve it is by rebooting the ...
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1answer
69 views
Identify the top processes when the overall system has large CPU utilization in Ubuntu server
I have a Ubuntu server running in EC2.
Occasionally, I get a large CPU usage 99+% utilization as measured in EC2 monitoring dashboard, even though most times it is less than 10%.
Since traffic to my ...
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2answers
87 views
50% Load on 2 CPU is the same that 100% Load on One CPU?
Very basic doubt: I have an application running on a VM with 2 vCPU.
The average load is a bit less than 50% on both CPUs.
Does that means that 1 CPU will be enough for my application?
Or more CPUs ...
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1answer
222 views
Does AWS charge for CPU Usage? [closed]
I am considering getting t3.medium Type EC2 run Web Server (Apache, PHP, MySQL) and it also make a lot of use of data processing (PHP script running in the background making a lot of use between MySQL ...
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1answer
15 views
Requirements analysis for CPU-bound task writing to disk
I have a data-analysis application which is CPU-bound, and produces ~35 MB/s of data per thread of execution.
I'm trying to work out how many threads I can run concurrently, and be able to write to ...
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1answer
264 views
How to restart linux services if it reaches 100% CPU? [closed]
I have postfix email server with saslauthd. Time and again saslauthd daemon eats 100% CPU. Restarting these services returns to normal cpu usage.
Is there any proper script to determine services with ...
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1answer
15 views
How can I predict whether or not memory will bottleneck a CPU
My question is general, though I have a specific example. My question is this: How can I predict whether a powerful CPU will be fully exploited in a scenario with memory that is (relatively) low?
My ...
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1answer
385 views
CPU utilization imbalance on ESXi 6.7
We are working with a server running ESXi 6.7 Enterprise Plus, and the mobo has 2 Xeon 10-core CPU's.
The host is moderately loaded, but strangely the ESXi monitoring screen shows MAX socket (package)...
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1answer
25 views
Server CPU way up, nothing peculiar
I'm having a strange morning where the CPU usage on my server is running way up. Like 35-50%.
htop shows nothing running like that, but PHP processes once in a while spiking. I can't seem to figure ...
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1answer
67 views
Root user consume huge amount of CPU [duplicate]
I can't understand why root user take huge CPU load, since there is no special processes running.
top -c
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1answer
45 views
Does it make sense to monitor free memory and CPU usage on servers?
I am monitoring my servers infrastructure using Icinga2 with some master/satellite configurations.
On Linux and Windows hosts I am monitoring the defaults system metrics like CPU usage and free ...
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79 views
How can I root-cause linux docker container CFS throttling?
I am running a docker container with a CFS configuration of 100000us period and quota of 450000us
My understanding is that this means that for 100000us accounting periods, if the CPU consumption ...
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0answers
95 views
High CPU blocking performance on SSH tunnel with PHP-FPM
I've a Debian 9 VPS set up with Apache and PHP-FPM. It connects to another VPS to access a common database server VPS via an SSH tunnel. Mostly this works fine.
Running a test for broken links ...
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3answers
6k views
Microsoft Azure AD Connect Health Agent for sync 3.0.164.0 high CPU usage
We're experiencing 100% CPU usage from the process Microsoft.Identity.Health.AadSync.MonitoringAgent.Startup on our Domain Controllers that have Azure AD Connect installed, since yesterday.
According ...
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0answers
128 views
CPU usage of a host in mininet
I have a network in mininet which includes a switch and 2 hosts. Now I want to find out the CPU/memory usage of a single host in this scenario. Is it possible? Is there any tool or any way to do this?
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2answers
193 views
Server crashing everyday around the same time. MYSQL related? [closed]
We have a dedicated server with a few applications running including a Vbulletin forum and Wordpress site. The main resource intensive application is a PHP chat application that utilizes MYSQL also.
...
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43 views
Lots of ENOENT (no such file or directory) errors in my php-fpm: pool www processes, resulting in 100% processor usage
I am running a Magento 2.2.4 installation on php 7 and apache2. I have asked this on the Magento stackexchange as well but someoone suggested it might not be a magento-specific problem.
Sometimes ...
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1answer
241 views
apache2 mod-php cpu 100% on process
I have a VPS Debian server with Apache 2.4.10 mod-php. Server starts normally, but after some time I get 100% cpu on one of www-data processes and a web-server becomes unavailable.
I tried strace on ...
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1answer
95 views
www-data run un-named process [duplicate]
I have run a server with 2vcpu and 4 GB of ram. my software setup is apache2+php7.0+drupal-7. I'm facing 100% CPU utilization due to the un-named process called [] and is owned by www-data. (...
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Why does the AWS console show such a high CPU usage for my Elastic Beanstalk instance?
I've got a super simple web application deployed using a Tomcat 8 instance on AWS Elastic Beanstalk. It works great.
I'm confused about the CPU usage, though. The AWS EB web console shows that it's ...
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968 views
What could be causing high CPU usage that is fixed for 24 hours by cycling FQDN/IP?
I have a few servers on my network that are experiencing high CPU usage. It's nothing specific but everything seems to be running hotter. Task Manager is running at up to 6 or 7% instead of below 1. ...
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1answer
176 views
AWS Instance with 30 GB RAM, still running out of Memory and High CPU usage with small app
EDIT (15th June 2018) - I have resolved the issue. It was Postgres where some queries were taking more than 15 seconds. Most of the queries were for the same type of pages so I just removed that. This ...
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69 views
Datadog reports 0 CPU idle, but server says close to 100% idle?
I have an open alert in Datadog for a monitor that measures CPU idle on our servers. It reports that one of our servers has hit 0% CPU idle. But when I run top on the server in question, it shows load ...
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1answer
227 views
.resyslogd process is using 200% cpu [duplicate]
First of all, a disclamer, I am not a sys admin, I was just asked to check why a VM of ours is using a lot of the cpu.
It turns out that this process is running for ever on 200%
$top
PID &...
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1answer
67 views
Why does my VM become slower during CPU-heavy tasks after some days of runtime?
I'm dealing with some strange problem for some time now: After some days of runtime, one of my VMs seems to become slower on CPU-heavy tasks. One example were this happens is reading virus signature ...
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How can child processes of mongo can be killed?
I have following mongo process tree in LINUX server.
mongod(1168)─┬─{mongod}(1366)
├─{mongod}(1367)
├─{mongod}(1370)
├─{mongod}(1376)
├─{mongod}(1378)
├─{...
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1answer
349 views
Ubuntu 14.04 /tmp/systemd process using 100% CPU
We have a live AWS EC2 instance with Ubuntu 14.04, which I have been handed to maintain. An oddity that I have found is that I have a process of /tmp/systemd using all available CPU:
top - 11:35:20 ...
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148 views
CPU and Memory Utilization from F5 Device ( ADC Load Balancer ) - Node (Server) wise
Can somebody help me out to retrieve the CPU and Memory utilization details for the list of nodes available in the F5 inventory using SNMP ( from F5 )
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groupadd on Ubuntu 16.04 with PBIS Open stuck with 100% CPU
I have Ubuntu 16.04 servers and workstations which are members of an Active Directory domain, using PowerBroker PBIS Open versions 8.5.0.153 and 8.6.0.427. When I try to add a local group using ...
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1answer
56 views
Network performance with an i7 6700 Skylake
We're looking into setting up multiple servers with Nginx; the estimated required capacity is 60 Gbps (six-zero gigabit per second)
A nearby datacenter offers us servers with "i7-6700 Quad-Core ...
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2answers
2k views
High CPU usage by mariadb even after allocated more memory to mariadb?
I am using aws server r4.4xlarge and allocated more than 60GB to database only still i am facing issue of high cpu usage.
I have around 10 big table each of approximate size of 18GB with integer ...
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1answer
2k views
Windows Server 2016 rds cpu usage per user low
We are running a Windows 2016 Server for our calculations. We have a Intel Xeon E5-1650 machine with 128GB RAM. We use the server for calculations which normaly need a lot of resources for a long ...
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How to find resource usages of each databases in a Mysql server
I'm using MySQL v5.5 and we have 6 databases in same Mysql. We are planning to move some databases to separate servers. For that I need to know resource usages of each databases. I have checked ...
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Nice not working though disabled kernel autogrouping via sys.kernel.sched_autogroup_enabled
Context
I have a Ubuntu 16.04 Kernel 4.4 desktop installation and two randomly CPU-intensive tasks (docker, numbercruncher). I want to prioritize the docker process over the numberbruncher task, ...
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2answers
72 views
Why linux “top” command shows different CPU utilizations values with only one CPU?
Why does "top" command shows two different values for a Linux server with only just one CPU. I understand that it can differs when there is a multi core processor but in this case I'm using a AWS ...
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0answers
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How can I debug Ruby Process that keeps climbing?
A few days ago all 4 of my app servers started having issues. It came after I deployed some code, but all I did was update a local database file that stores some IP Addresses, so I didn't make any ...
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175 views
marathon-lb mapping process to CPU core
We use marathon-lb as dcos load-balancer. To increase performance of haproxy next config is used
global
nbproc 4
cpu-map 1 0
cpu-map 2 1
cpu-map 3 2
cpu-map 4 3
stats socket /...
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2answers
74 views
Track User CPU usage for a period of time
I need to track amount of processes that a single user invoked and how much CPU-time (or % ) these processes consumed for a given period of time.
The trick is that each of these processes normally ...
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1answer
387 views
per processs core limit to allevate high sy/kernel cpu usage
My understanding is high kernel/sy CPU usage is a symptom of network and disk IO or issues of RAM throughput.
#516139. However, I suspect in the case below, over allocating threads is giving the ...
