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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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Using SNMP to retrieve CPU Idle, User and System, Raw Information 32 bit counter

I am using snmpget to retrieve raw information from: ssCpuRawIdle.0 ssCpuRawUser.0 ssCpuRawSystem.0 As I understand they are on 32 bit counters. I also use ifOutOctets and ifInOctets to retrieve the information for network statistics over a period…
RussellW
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Apache 100% CPU for simple PHP API

I have a new server install of CentOS 6.4 64bit on a VM with 2 cpu and 8gb of ram. The server has nothing installed other than apache and php. The server is hosting a simple web API that writes data to a RabbitMQ queue on another server. I'm running…
tdbui22
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How to configure Apache so that I can get server resource stats per website / per script

How can Apache be configured so that it will be simple to get server resource stats (CPU, memory) per website (as defined by a separate sites-enabled entry) and / or by script (each .html or .php file in any website)? I had considered setting up…
dotancohen
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High CPU Usage in windows server 2003

In one of our production servers the CPU usage is 100% and thus some of the backup jobs failed. In windows server 2003 cms.exe shows : 50%, tomcat_3.exe : 25%, and tomcat_1.exe : 25%. Please help me how can I overcome this issue. Attached Process…
Jithu
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Cpu usage from top command

How can i get the result like example following. Any command or scripts? Snapshot u1234 3971 1.9 0.0 0 0 ? Z 20:00 0:00 [php] u1234 4243 3.8 0.2 64128 43064 ? D 20:00 0:00 /usr/bin/php /home/u1234/public_html/index.php u1234 4289 5.3 0.2…
kairyu
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How do I troubleshoot high vmstat sy

I have a Solaris server with very high vmstat sy time. What tools can I use to identify which process is causing the high system cpu usage? kthr memory page disk faults cpu r b w swap free re mf pi po…
user99959
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Windows Servers with Citrix + Credential Guard > CPU use from average 30% to 90-100%. Ideas?

It has been observed that Windows Servers with Citrix and "Credential Guard" feature turned on; have jumped in CPU use from average 30% to 90-100%. This is a work in progress and Microsoft has acknowledged it but has there been anyone experiencing…
Farzan
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CLI Tool for Machine Stats

Are there good CLI utilities to see things like CPU, RAM, and Network Traffic over time? I know CPU can be looked at via a command like top but curious if there is any way to collect historical trends automagically. I basically want Datadog for a…
stk1234
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Why one of the cores is running full on (100%) during development?

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. Python has built-in garbage collection to keep up…
Mark
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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 TurboBoost is enabled, that the frequency is…
jericzech
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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 Order: Little Endian Address…
Mathieu Rollet
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cat /dev/zero | pv > /dev/null

cat /dev/zero | pv > /dev/null What exactly happens here and what determines the speed of this process. Even on low end hardware you get a couple of GB/s transfer speeds like this.
Flatron
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Java process stay in running state and consume CPU

I have a jar running in background on a Ubuntu server. In a certain moment, the application start consumming too much CPU (400%) and 4 child process stay in R state: N.B: the problem is generating NOT because of an amount of using, it is caused…
EspritBat
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How to understand output of top command

How to understand output for top as Load Average is continuously increasing but can't understand which process is eating cpu because %cpu utilization for process is maximum 0.7 but load average is showing high values ! So how to know where is…
Ashish Karpe
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High IO wait when test disk with dd

My server is using two SATA disk Raid 1. I test disk using dd #!/bin/bash i=0 MAX_LOOP=10 while [ $i -lt $MAX_LOOP ] do dd if=/dev/zero of=/data/output bs=1G count=10 ((i++)) done The write speed is very good about 310MB/s. But IO…
Luke Nguyen
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