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

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246 views

CPU usage rises to 100% in a few minutes on Tomcat web sever

I have an web app running on Tomcat 7 server. The rest of the configuration is: Intel i7 3930 32GB RAM 2x2TB HDD 20TB Bandwidth Debian 6 mysql 5.5.9 I'm using Ganglia for monitoring the load. ...
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1answer
404 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 ...
5
votes
2answers
2k views

CPU allocation for VMs on ESXi

I'm a complete VMware know-nothing, but I recently set up 4 VMs on ESXi. 3 of the VMs are very non-resource-intensive (a lightly used file server, a lightly used domain domain controller, and a VMware ...
2
votes
1answer
609 views

Should CPU usage be so low while memory usage is high on heavy mysql server?

I'm using ubuntu server 12.04 x64. The server receives a lot of requests to mysql through apache web server (it's light interface). From mysql stats I see there is approx 250 queries / second from 8 ...
4
votes
1answer
191 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
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1answer
149 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 ...
0
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2answers
1k views

High Load, low CPU, Memory and Disk IO - Highend Server

This issue has been bugging me for the past several days having spent over 40 hours investigating this issue intensively. Effectively we run asterisk 1.4.42 which I understand is old, however is the ...
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1answer
59 views

what will happen if my cpu usuage stays 100% for 30 mins or so on linux server

I have Amazon Ec2 small instance with 1.7Gb RAM. I have 3 websites running on them. I have the scripts which does the web crawling every day and perform some caluclation. I have not deployed them ...
4
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1answer
2k views

CPU% more than 100 in ps -aux

We use ps -aux to find out when tomcat process takes high CPU utilization, if that so we will send a alert to Group. But some times %CPU shows more than 100, but our application working fine. Is it ...
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3answers
518 views

Proper acting when a process is consuming 100% time of CPU

On several machines I have a problem with a process that is using 100% time of a CPU. USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND root 85740 100.0 0.2 34668 ...
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0answers
349 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 ...
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0answers
113 views

Get an OpenVZ container's cpuload realtime in a bash script

I have a bash script which uses CPU cores rather intensively. Recently my VPS was suspended due to server load. The main reason is a cron job for a bash script which checks for Wordpress plugins and ...
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2answers
2k views

httpd high cpu usage slowing down server response [duplicate]

my client has a image sharing website with about 100.000 visitor per day it has been slowed down considerably since this morning when i checked processes i've notice high cpu usage from http .... ...
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1answer
94 views

Debugging high CPU load when adding new domain inside server's control panel

When adding a new domain inside my server's control panel it takes much longer than usual since some time. CPU shows 100% usage on one core and strace reports something like this: poll([{fd=7, ...
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1answer
107 views

CloudLinux equivalent for Windows

Is there any configuration or software solutions that would provide similar resource throttling per user like CloudLinux does for Linux? We currently run game servers on Windows 2008 OS and the major ...
2
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2answers
4k views

WHM/CPANEL - High cpu and memory usage from Analog Stats [closed]

A single process is taking 100% of the cpu and 70% of the memory and starts every day on different account; /usr/local/cpanel/3rdparty/bin/analog +CIMAGEDIR /images/ +CDOMAINSFILE ...
0
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1answer
38 views

MySQL Process Big

Ok, so I don't know if this is a repeat question so I'm sorry if it is (I couldn't find anything like it after searching =/) My server seems to be running what seems to me a larger than normal mysql ...
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votes
4answers
280 views

How can I get combined CPU usage for all CPUs in one line on Linux? [closed]

I want to output the following: Average CPU utilization across all cores, over the last n seconds, in a single percentage value. So if I have 4 CPUs and their combined user and system utilization ...
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1answer
2k views

How to monitor CPU usage on a device running embedded Linux and BusyBox?

I recently began working with a device that uses embedded Linux and BusyBox. It is very stripped down, and does not have iostat or sar. It also doesn't have dpkg or apt for package management. The ...
1
vote
1answer
745 views

CPU Usage vs load average [duplicate]

I'm running debian iostat -x Linux 2.6.32-5-amd64 (server56856.uk2net.com) 27/04/13 _x86_64_ (4 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 4.59 0.01 ...
0
votes
1answer
45 views

How to find out CPU usage of DLLs within an instance of svchost.exe

My Windows Server 2008 R2 should be almost idle, yet it's taking about 12-15% CPU almost all the time. The busy process is an instance of svchost.exe Using SvcHost Process Analyser, I've established ...
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2answers
66 views

High Processor Usage

I have a Linode VPS and am getting alerts regarding high CPU usage every few days - a reboot solves the problem - but would rather find the issue. I'm running Ubuntu 12.10 and other than PHP, MySQL ...
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1answer
53 views

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 ...
0
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1answer
388 views

How can sleeping processes in “top” be using a percentage of CPU?

When we run top we occasionally see a sleeping, "S", process which is using %CPU; I would expect all sleeping processes to use 0% CPU since they are not active. I would expect only running, "R", ...
2
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1answer
2k 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 ...
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1answer
385 views

Understanding CPU Throttle

kernel /vmlinuz-2.6.32-379.22.1.lve1.2.17.el6.x86_64 ro root=UUID=7cb0b445-0f63-4ef1-ab73-93c114d8ef6c rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto ...
2
votes
1answer
377 views

Apache high CPU usage, setting a overload limit

On a ubuntu server, I run a LAMP environment with APC, and fast-cgi as php mod, to host 2 wordpress sites, and both sites have Wordpress Total Cache (W3TC) plugin configured. The server's specs are: ...
2
votes
1answer
3k views

Why does a mysql query, that requires copying to tmp table, randomly sometimes consume 100% CPU during several seconds?

I have some crazy SQL queries in my PHP scripts which badly need some optimization. However the question is NOT about how to optimize them. These queries have a lot of "join"s and some bizarre "order ...
0
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2answers
83 views

When upgrading hardware to increase program performance, which should I consider first CPU, RAM or both? [duplicate]

I have a simple script that I wrote in PHP (which, after reading lots of QAs seems to have less than desirable memory management). It's an extremely small script that loops through configuration ...
0
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1answer
2k views

iexplorer.exe high CPU/RAM usage

My client has a virtual Server 2008 R2 terminal server running under ESXi 5.1. This server has, which been in production for around 4 months, experiences intermittent slowness / non-responsiveness ...
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1answer
471 views

Two CPU cores at 100% utilization after soft lockup on two CPUs, is this normal?

I had two of my CPUs lock up on one of my servers. From dmesg: BUG: soft lockup - CPU#1 stuck for 23s! [vmx-vcpu-0:6148] and later: BUG: soft lockup - CPU#2 stuck for 23s! [vmx-vcpu-0:6148] I'm ...
0
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1answer
245 views

CPU load steadily increasing and MySQL 1.5 GB open deleted file in temp directory

I have a CentOS server that is running cPanel (shared hosting server), I have had troubles with MySQL before and I spent some time configuring and tuning it, until finally the load dropped (from ...
0
votes
3answers
1k views

Windows Server 2008 task manager shows not more than 25% cpu usage for a process, how to increase this value?

Is this a feature or limitation compared to ordinary single user Windows 7/8? Is there a way to give one user access to say 50, 75% of overall cpu resources for running a software/process?
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3answers
59 views

Finding the file/script that invoked a process

I do have a high CPU utilization PhP Process. This process in turn seem to invoke mysql and both processes together are using all the CPU cores and RAM using ps aux | grep php , i could get the ...
4
votes
1answer
194 views

mongo and app server cpu

The beginning: We are using uwsgi and I decided to switch our configuration to use more workers/processes. Why: We have been seeing a traffic increase lately and in my tests with apache benchmark, ...
0
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2answers
799 views

Where is the high load coming from?

Last night I recieved a lot of messages from DirectAdmin saying: load average on your system is 46.86, or some similar number. It comes with a 'top' printout, but all I can tell from that printout is ...
0
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3answers
476 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 ...
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2answers
358 views

CentOS log high cpu usage [closed]

I have a CentOS server running on a VPS via Virtuozoo containers. I feel like there are high CPU usage spikes. Is there a way I can log every time CPU usage goes beyond a certain limit lets say 50%. ...
0
votes
1answer
838 views

Linux Load Averages and HyperThreads

My rough understanding of a Linux load Average is that for every integer a CPU core is working all the time. For example, 1 means on a 4 core system that 1 core is working at capacity. How does ...
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0answers
72 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 ...
0
votes
1answer
631 views

Which Apache parameters responsible for high CPU usage and slower response?

Two dedicated separate servers running with identical configuration of hardware (Dual E5-2620 32GB) in similar environment (CentOS 6.3, Apache+PHP+MySQL) serving similar tasks, but behaving in ...
0
votes
1answer
67 views

High mysql throughput / cpu utilization

Once in a while, our server starts lagging. It always start around 6:00 ( GMT + 1) in the morning and ends around 3 till 4 hours later. We have munin installed and we see a peak in CPU utilization ...
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3answers
2k views

Why Are My High CPU Processes Located In /usr/bin/?

I keep getting RAM and CPU spikes but I can't figure out where it is coming from. If I look at the Process manager, I see, /usr/bin/php /home/hellohel/public_html/index.php Repeated several times. ...
2
votes
2answers
435 views

Does Apache2 run faster if I have more CPU?

I have a cloud server, with: 5120 RAM and 4.6Ghz My question is: if I add more CPU, (11.5 Ghz) will the load time of the pages be higher? I mean, is this always gradual? More CPU = faster pageload? ...
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1answer
1k views

How can I log the most CPU-Intensive processes in regular intervals?

I have a server which is idling below 5% cpu load most of the time, except from a few times a day where I can see some minor cpu spikes. I found out about this by using PRTG. How can I find out what ...
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2answers
2k views

What is causing high cpu usage? [closed]

My host says that I'm using too much resource and I don't know what's causing it. It is running Ubuntu 10.04 LTS 32bit. It has 2GB RAM with 2GB SWAP. I run nginx as the webserver with php-fpm & ...
0
votes
2answers
527 views

Amazon EC2 - how to determine how busy each CPU is

I have an Amazon EC2 micro instance. I believe that this is 1 core (or 2 for periodic bursts) with 4 CPU's. I'm getting confused with the terminology (ECU vs CPU vs Core) but really I would like to ...
-1
votes
2answers
2k views

ntvdm.exe is using a lot of CPU

One of my servers is a Windows 2003 Enterprise Edition SP2. Usually there are up to 14 people logged in during all day. They use regular programs like Office 2010 or any internet browsers and a couple ...
1
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1answer
331 views

How do I decide what type of hardware to use for a firewall? [duplicate]

Possible Duplicate: Can you help me with my capacity planning? What are the hardware performance requirements to set up a PFsense firewall on my gigabit Ethernet network? Is ...
2
votes
2answers
850 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 ...