CPU hogging means using a lot, if not almost all of the CPU time.

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2
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2answers
61 views

Solaris 10 ZFS ARC Maxed Out and CPU's Overloaded

We've been running ZFS for a couple years now on Solaris 10 on Oracle M5000 Enterprise server with 32 CPU cores and 256GB of memory. We are running a database/application on this server which appears ...
0
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1answer
302 views

High CPU usage in my digitalocean droplet [closed]

I am experiencing high CPU usage here is the stats i got from server, the consumption after every restart in 15 minutes go upto 100%, what could go wrong? I have a wordpress copy installed on the ...
2
votes
0answers
63 views

Exchange 2010 on KVM - CPU usage reporting incorrectly

Good Morning, I have virtualized an exchange server using KVM (proxmox actually). It is Exchange 2010 SP3 running on server 2012 R2. KVM version 1.7.1. I am using the latest (0.1-74) virtio ...
0
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0answers
47 views

How to Prioritise ssh logins (nice)

Exact duplicate of this question, which has an accepted answer that doesn't solve the problem. How do I set sshd to run with a higher priority, so that even if the system is massively overloaded ...
1
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0answers
72 views

virsh vcpu_period and vcpu_quota

I have been looking into ways to divide my CPU amongst KVM guests other than by just setting vCPU access limits. I understand the concept of cpu_shares which can be set/displayed with virsh schedinfo, ...
3
votes
0answers
176 views

How to investigate the cause of a 100% CPU event that lasted for hours?

Yesterday the CPU on my Xen-based VPS server went to 100% for two hours and then went back to normal, seemingly naturally. I have checked logs including syslog, auth.log and more and nothing seems ...
0
votes
0answers
67 views

How to solve problematic cpu load due to encryption when using SFTP on a VM

my company is trying offer a sftp service for a big amount of customers. The serving machine will be on a VM and tests have shown that, with an increasing amount of simultaneous users, the cpu becomes ...
0
votes
2answers
103 views

How long/how hard should I stress test CPU and memory before declaring it OK?

One of our Dell PowerEdge LCDs was showing "CPU 2 machine check error", but I couldn't find anything in the logs regarding MCE or "Hardware Error." I cleared the message, but I wanted to run the ...
0
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0answers
203 views

High “system” cpu usage, no IRQs to blame

I have a WYSE V50L 800MHz terminal with Ubuntu Server 12.04.3. The problem I'm having is low transfer speeds (caused most likely by high "system" cpu load) while exchanging files with the terminal. ...
1
vote
2answers
168 views

Why is DU causing high CPU usage?

On CentOS 6.5, du -sk /home and sh -c (du -sk \/home) 2>/dev/null run because a scheduled disk usage for /home, but du is causing 100% CPU usage. Plus, before it's even finished, another du gets ...
0
votes
1answer
309 views

SBS Server 2008 with periodic lsass.exe using 100% of 1 Core

SBS Server 2008 with everything running on it (AD/PDC, SQL 2012, FileServer, RDP Gateway, WSUS, No Exchange though). Every 30 minutes on the hour and half hour, lsass.exe uses 25% of the CPU (1 core ...
4
votes
1answer
171 views

Artificially Generate CPU Steal

Anyone know of a good way to artificially generate CPU steal? I have some automation I want to test which is triggered by CPU Steal, but for the life of me I can't figure out how to force CPU Steal ...
-1
votes
1answer
128 views

MySQL settings for MAXIMUM performance / can be specific to particular DB or user? [closed]

We have a dedicated server, a very powerful one, and I don't believe we are getting the most out of MySQL. Even when running ultra-heavy processes that take a very long time to complete, I'm showing ...
2
votes
0answers
294 views

Ubuntu 13.04: apt-get and check-new-release CPU bound

I own a virtual server hosted by a provider. A few hours ago I was notified about the VM being CPU-bound. I couldn't log in and rebooted the server. After the boot, apt-get and check-new-release were ...
2
votes
1answer
1k views

How to debug Node + Socket.io CPU Issues

We are running a Node Socket.io server with Express 3. The server is monitored using Forever. The service is running well, but the CPU grows throughout the day, until it reaches 90%+ and then suddenly ...
0
votes
2answers
406 views

Mysql killing the CPU with gettimeofday

I have a problem with mysql killing the CPU on a Debian Squeeze 64. This is a development machine on a VPS so I stopped all the other services, including apache2. The mysql version is 5.1.49. This is ...
1
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0answers
70 views

'Nice' a process on Windows within EC2

I have a server in AWS/EC2 that is running a MSSQL database with a number of applications accessing it. On occasion, some Cobol batch processes are run against it also. For a while these have been ...
2
votes
2answers
675 views

My client's solution of a Windows SBS 2011 VM on an Ubuntu host and VirtualBox is pinning the host CPU

Here's my situation, I've got a client hosting two servers (one VM), with the host providing VMware Zimbra, the other Windows Small Business Server 2011. Unfortunately, the person before me had ...
1
vote
2answers
1k views

Excessive CPU Utilization for Bind 9.8.1 `named` processes

I just noticed that named is eating vast amounts of CPU time for a very small network with only a few domains. Can someone help me determine what is misconfigured, please? Or how to debug this. top ...
1
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0answers
228 views

Apache taking up a lot of CPU while running request-tracker4

I am trying out a request-tracker installation on an EC2 micro instance. The specs for the micro instance are as follows 1) Ubuntu 12.04 64bit, 613MB RAM, 8GB Hard Drive 2) Running request-tracker ...
1
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0answers
39 views

Large chance of having an error after restarting the JBoss server

I have a sort of a legacy JEE 5 application running on JBoss 4, using EJB 2.1 and tapesty 4 and the JVM is 1.5_09. A few months ago the hard disk of the server had to be replaced after that was done ...
3
votes
1answer
138 views

how to find out why our Windows 2003 webserver shows CPU use at 100%

I am responsible for coding our web and database applications and the smooth functioning of the web server, which is running IIS6 under Windows Server 2003. The machine's a legacy server, 2003 ...
2
votes
1answer
372 views

MySQL started to consume about 40% of system CPU time and got unresponsive suddenly

I use Debian 6.0.3 x86_64 and MySQL 5.5.20-1~dotdeb.0-log from the Dotdeb repository. MySQL process started to consume a lot of "sy" CPU time serveral hours ago according to this graph. I was not able ...
4
votes
1answer
2k views

Software Interrupts CPU time is high and keeps growing

My system is a Debian 6.0.3 x86_64 box w/kernel 2.6.32-5-openvz-amd64, it hosts a number of OpenVZ containers. I have recently migrated from LXC/newer kernel from backports repo to the stable OpenVZ ...
1
vote
3answers
3k views

Need help trouble shooting high CPU usage by PHP-fpm

There is a problem that is driving me crazy. After the day I tried to fix the CPU usage problem of my VPS, the CPU load has grown from 60% to 150%, and I have no idea what causes the problem. Please ...
3
votes
3answers
560 views

Running bash script with php under lower priority or limit CPU

I have a bash script which runs a set of php scripts. When it runs it takes an hour and pegs the CPU at 95-99%. This causes our lamp stack (mainly the apache process) problems and our website on the ...
0
votes
1answer
285 views

CentOS5.2 Two Quad Core CPUs - Load Average Going Crazy

My normal CPU load average is less than 1.0. However, once in a while for some unknown reasons, the CPU load average shoots up to 23.21, even though the connections and processes running are the same ...
2
votes
2answers
3k views

Exchange 2010 High CPU usage

I have an issue with a recently migrated SBS 2011 server. All appears to be running fine but I noticed it running slow and saw that it was running at 100% CPU. Taking a look, it's mainly two services ...
2
votes
1answer
3k views

PHP processes run one at a time, always taking 100% of one core

We have seven websites written in PHP running on a Windows 2008 server with IIS 7.5. They are all very slow right now. When I look in Task Manager, I see around 10 php-cgi.exe processes, and they ...
6
votes
2answers
1k views

Prioritise ssh logins (nice)

Is there a preferred way to set "nice" for sshd? I need priority given to sshd such that I can login and easily fix stuff when something has gone wrong (eg DoS, badly behaved processes, etc)
4
votes
1answer
644 views

How does a CPU ever go Idle enough to enter deeper C states?

Even if no user process is running, don't the kernel processes keep the CPU active enough so as to prevent it from entering a deeper C state like C1 or C2 ?
4
votes
3answers
3k views

100% CPU when doing 4 or more concurrent requests with Magento

Currently I'm having trouble with a server running Magento, it's unbelievably slow. It's a VPS with a few Magento installations on it used for development, so I'm the only one using them. When I do 4 ...
0
votes
1answer
358 views

mod mono consuming lots of memory and cpu in some situations. How to improve this?

I have set up a apache + mod_mono asp.net mvc3 website, and I'm facing some strange problems with it. Some times, for a reason I do not know, the website just stops responding. When this happens, I ...
4
votes
2answers
556 views

Is EBS naturally CPU-hungry?

We have an m1.medium EC2 instance with a small (15G) EBS drive, running both Rails 3 and a PostgreSQL server. We've noticed CPU spikes at odd times, and finally realized that even simple, sustained ...
1
vote
2answers
813 views

Oneiric's init (upstart) taking up 99% cpu on openvz

I'm having a problem with a openvz vps which came with Ubuntu Natty (11.04) and I recently upgraded to Oneiric (11.10). After a reboot I found the init process stuck at ~99% cpu and the loadavg ...
0
votes
3answers
901 views

How to know what is consuming the CPU on my Ubuntu Lucid server running in Linode instace?

I've a Lucid 10.04 instance running on Linode which is hosting a simple rails3 app. Now I'm getting several email complaining the CPU usage almost 100%. But I'm not being able to figure out what is ...
2
votes
2answers
1k views

Ubuntu 11.04 server hanging due to landscape-sysinfo CPU overconsumption

I'm running something of a bare-bones server (based on Ubuntu 11.04) on an Amazon EC2 micro instance, whose purpose is simply to coordinate the activities of a few webservers. The machine ran well for ...
1
vote
2answers
857 views

CPU being pushed to 100% by a process, trying to track and eliminate the problem

I am having trouble with the web servers CPU getting stuck at 25%, then 50%, then 75% until finally maxing out at 100%. Which we are guessing may be some slightly slower SQL queries stacking up, but ...
1
vote
1answer
2k views

Tracking down high Windows Server CPU utilization

I've got a Windows 2003 server (64-bit) running as a VM on a remote hosting facility. (I'm just leasing this one particular virtual instance, so I don't know what sort of underlying hardware it's ...
1
vote
2answers
808 views

w3wp.exe using 50% CPU time when website is not doing anything

I've got a Windows Server 2008 running IIS 7 with a number of different website each with there own application pool. Occasionally each one of these sites will fire up a w3wp.exe process when nobody ...
0
votes
1answer
554 views

Webserver max CPU when apache and MYSQL are ran together

This website has been running fine without issues, Recently it went down. After some investigation it looks like the combo of MYSQL and Apache bring the box to its knees. Apache can run find serving ...
2
votes
1answer
1k views

procdump on w3wp.exe: Only part of a ReadProcessMemory or WriteProcessMemory request was completed

I'm having a problem with an IIS application that occasionally spikes up in CPU usage, and am trying to use procdump to get a memory dump for examination. I'm running "procdump.exe -64 -mA 9999" ...
0
votes
2answers
2k views

svchost.exe runs at 90% CPU, tasklist /svc shows RpcSs is the culprit

I'm running Windows Server 2003 Standard (Much to my distaste), I've applied all the security updates and now I'm stuck with a box that's constantly being hammered by svchost. The process ID is ...
0
votes
2answers
1k views

SNMP.exe on a physical server with Windows Server 2003 consistently takes 20% of CPU utilization

snmp.exe takes 20% cpu utilization, irrespective of any other processes running/stopped on the server. The machine has HP hardware (oops, not IBM) When we stop the snmp service, the CPU utilization ...
0
votes
2answers
256 views

OS X Server 10.4 postfix qmngr is suddenly using tons of resources

I have an Apple XServe G5, running 10.4 server, that I use primarily for my (small) companies website and internal email. Usually, the processor usage hovers around 5-10% total. As I have a rather ...
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vote
3answers
539 views

Limiting maximum cpu time for user-launched programs

We have a cluster running CentOS with Sun Grid Engine for research simulations. However, some users who aren't too familiar with the system end up running jobs on the head node, which of of course ...
1
vote
1answer
133 views

Server running at 100% without explanation

I have a Ubuntu VPS that has recently begun to be non-responsive through full processor utilisation. Unfortunately, I'm at a loss as to what is causing this and I was looking for some pointers that I ...
2
votes
3answers
6k views

windows server 2008 100% CPU

I am on Service Pack 2. My CPU is running at 100% with either svchost.exe or services.exe. I know that this was common in XP, server 2000, etc. But now I only seem to find posts for Vista. What is ...
0
votes
3answers
2k views

How to monitor process hogging CPU on a remote server

I have a remotely hosted (virtual, VMware) dedicated server (Windows 2008 Server Web edition w/ SP1) that I can only connect to over Remote Desktop. Lately, a process hogs CPU for ~40 minutes most ...
0
votes
2answers
8k views

How can I restart yum?

on my server, yum is using a LOT of system resources. My friend suggested to kill -9 it, but I want to know I'll be able to restart it first. Preferably without rebooting the whole server. However, ...