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4
votes
1answer
1k views

VMWare - High CPU utilization on Windows 7 guest VM

I've just added some Windows 7 virtual machines to an existing VMWare vSphere 5.1 cluster. The hosts and vCenter are 5.1 with current updates via Update Manager. Looking at the vSphere client ...
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 ...
2
votes
0answers
260 views

VMware Fusion Ubuntu 12.04 LTS Server - Soft Lockup CPU Stuck

I have a strange Stuck Problem with VMware Fusion and Ubuntu 12.04 as Guest System. On High Loaded process the System stucks with "Soft Lockup CPU Stuck" and i have to reboot the VM...the Same System ...
3
votes
1answer
725 views

100% kernel load on FreeBSD 9

I'm having problems with a FreeBSD 9 server. One of the 8 cores (4 w/ HT) is constantly at 100% kernel load. top gives me: CPU: 0.0% user, 0.0% nice, 12.5% system, 0.0% interrupt, 87.5% idle ...
6
votes
1answer
1k views

Very uneven CPU utilization with SQL Server 2012 on 2 processor computer with 16 cores / processor

After installing SQL Server Enterprise 2012 with the Server + Cal license model, on a computer with 2 processors each with 16 cores (and no hyperthreading involved) and putting the server under ...
3
votes
1answer
3k views

Disabling CPU management

If I add the following processor.max_cstate=0 to the kernel command line for boot up, does that disable all CPU power management and throttling? I also found: ...
4
votes
2answers
370 views

Uneven CPU core utilization

tl;dr: First CPU core is consistently saturated, all other cores are consistently under-loaded. A VM, inside Ubuntu-based Xen XCP: $ uname -a Linux MYHOST 2.6.38-15-virtual #59-Ubuntu SMP Fri Apr ...
1
vote
1answer
132 views

Will more memory help my CPU-peaking SQL Server 2008 R2

I'm supporting a system running against a SQL Server 2008 R2. The server is a single-CPU box with 8 GB of memory. As traffic has increased, the server has started saturating, peaking to 100% CPU ever ...
1
vote
3answers
186 views

Apache2 return 404 for proxy requests before reaching WSGI

I have a Django app running under Apache2 and mod_wsgi and, unfortunately, lots of requests trying to use the server as a proxy. The server is responding OK with 404 errors but the errors are ...
2
votes
1answer
468 views

Load average relation to cpu threads and cpu cores

Is load average related to CPU ThreadS OR CPU core? i am having a xenon cpu with 8 cores and 16 threads. How much can be the acceptable load average? Sometimes Load AVerage reaches 11. so does ...
0
votes
2answers
299 views

find the cpu usage of a process on Ubuntu?

Is there a way to find the CPU usage of a process on ubuntu combined with the cpu usage of all the child process. And also would it be possible to get this number as a % of the total CPU usage?
1
vote
0answers
245 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
vote
0answers
40 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 ...
2
votes
2answers
2k views

Why does mpstat show different values when I use the interval setting?

Here's the output I get when I run mpstat: $mpstat Linux 3.2.0-30-generic (my-laptop-C650) 09/17/2012 _x86_64_ (2 CPU) 05:32:01 PM CPU %usr %nice %sys %iowait %irq %soft ...
1
vote
1answer
2k views

KVM causes high CPU loaded when cache='none'

I've followed instructions on http://www.linux-kvm.org/page/Tuning_KVM. Host is Debian Squeeze Kernel 3.2, QEMU 1.0, libvirt 0.9.12 (all from squeeze-backport). All 4 guests are Debian Squeeze Kernel ...
0
votes
2answers
3k views

Windows Server 2008 R2: CPU spikes randomly…how can I find the culprit?

On my dual-socket server, I occasionally see that CPU usage absolutely spikes to 100% on all cores for about 5 seconds at random periods during the day. It happens about once or twice a day. The ...
3
votes
1answer
362 views

High CPU usage resulting in server crash

running out of ideas to explore. First off - let me warn you - I'm a programmer, not a systech :) Here is the situation. Dedicated server (LAMP) running a fair amount of sites. mySQL server is on a ...
1
vote
2answers
2k views

High CPU usage resulting in server crash

running out of ideas to explore. First off - let me warn you - I'm a programmer, not a systech :) Here is the situation. Dedicated server (LAMP) running a fair amount of sites. mySQL server is on a ...
1
vote
1answer
626 views

Why is SQL maxing out at 50% of CPU on my EC2 c1.medium instance?

I'm new to AWS, so I think this might be a really simple question: I'm using an EC2 t1.micro instance as my SQL DB server for some small-scale analysis that I'm doing (Windows, SQL Express 2008). It ...
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 ...
0
votes
1answer
1k views

Single-threaded application being balanced across CPU cores?

Is there an easy way to check whether a certain single-threaded application is being balanced across CPU cores by Windows? I have already tried Process Explorer but I could not find a way to read it ...
2
votes
1answer
266 views

My sql consuming as much as 60% cpu time on start

I'm running a Wordpress installation on an Amazon Ec2 micro instance(linux ami). Using the default configuration Apache kept using up all the memory and shutting down mysql rendering wordpress ...
-2
votes
1answer
141 views

How much time a day my CPU is used by 100%? [closed]

Well, I like to measure the time my cpu is used by 100% (+/- a margin). In other words: I want to know how much time a day my CPU is the bottleneck and I am sitting here waiting for results. I want a ...
2
votes
1answer
380 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 ...
-3
votes
1answer
2k views

High Cpu Usage after MySQL Update (5.1 to 5.5) on CentOS 5.8 (64 Bit)

General Problem: Server load 20.92 (8 CPUs) [it varies from 7 to 40, normally it should be less than 1) Server Specs: Dedicated Server Intel Core i7 (8 Cpus) RAM: 8GB We use WHM and we have about ...
0
votes
2answers
697 views

apache high system CPU time

I have a web server: ubuntu apache+php app+postgresql and a stats server: ubuntu apache+php - piwik and munin2 installed. The communication for munin2 is made through ssh. In munin i see a lot of ...
-3
votes
1answer
90 views

Apache & Core Usage [closed]

If you have like... 10 cores... and you use Apache and your load average is always under 5.0... Would it slow your site any if you lowered to 6 cores? (assuming you never reached any spikes that ...
0
votes
2answers
789 views

Current Load is WARNING - why?

On a VPS with 1 CPU core and 2GB RAM, I run a mysql+apache2 for a low traffic website. Sometimes the machine slows down or stops delivering through apache or mysql. That's why I set up nagios which ...
0
votes
1answer
2k views

Configuring ZenOSS to monitor CPU load

I'm trying test out monitoring tools for a network at work with a coworker but neither of us have ever used an sort of monitoring tools before. Currently we are experimenting with ZenOSS and having ...
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 ...
2
votes
1answer
569 views

Hyper-Threading & htop/system-monitor

I'm running a large set of simulations on a quad-core Xenon E5520 with Hyper-Threading enabled. My software automatically detects 8 (virtual) cores and launches 8 simulations to run in parallel. ...
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 ...
0
votes
2answers
363 views

Monitoring Redis and mysql server for memory and cpu usage

I want to compare the memory and cpu usage of the the redis-server and the mysql-server. I have used a profiler to get the client data but I would also like to know what is going on on the servers ...
5
votes
4answers
4k views

Graphing per-user CPU usage on a Linux machine

I want to graph (graphical output would be great, i.e. a .png file) the following situation: I have users A, B, and C. I limit their resources so that when all users run a CPU intensive task at the ...
2
votes
4answers
1k views

Hyper-V CPU Utilization, Good Tools? [closed]

I just learned a ton from this post: Host CPU% doesn't include child VM CPU%, specifically I learned that both the 'host OS' and 'child VM' are siblings within the HyperVisor layer. Are there good ...
1
vote
1answer
237 views

How to check gpu usages on aws ec2 gpu instance?

I'm running a ubuntu gpu instance on AWS ec2. I'm not sure if my application is using gpu accelerations. So how to check gpu usages on aws gpu instance?
18
votes
2answers
2k views

Is there a Windows equivalent of Unix 'CPU steal time'?

In order to assess performance monitoring accuracy on virtualization platforms, the CPU steal time has become an increasingly relevant metric - see EC2 monitoring: the case of stolen CPU for an ...
3
votes
3answers
609 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 ...
1
vote
1answer
230 views

Apache/PHP Elastic Beanstalk - Track Which Request is CPU Intensive

At certain seemingly random parts of the day, my CPU usage will spike up from ~10% on 1 m1.large to 70% on 4 large servers. This all happens within 20 minutes and stays this way for a few hours and ...
0
votes
1answer
294 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 ...
11
votes
4answers
13k views

Linux CPU usage and Process Execution History

Is there any way to see what process(es) caused the most CPU usage? I have AMAZON EC2 Linux which CPU utilization reaches 100 percent and make me to reboot the system. I cannot even login through SSH ...
0
votes
1answer
1k views

Please help me reduce high CPU load, Wordpress website

I have a dedicated server. Ever since I upgraded Wordpress to latest version from 2.8.4, I see very high CPU usage. Also I updated the plugins. I use wp super cache. Compression enabled, cache expires ...
1
vote
2answers
5k views

How much resources should backup tools be using? ( issues with clBackup )

My hosting provider makes backups of our servers using a tool called clBackup which pushes files over the network. Below is one ps output we took and reported to our provider: top - 10:06:24 up 25 ...
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 ...
0
votes
1answer
362 views

Apache/Passenger and cpulimit

I run a ruby on rails site that processes email - the email is dumped directly into the web app via a POST from postfix. At times I can get a burst of email coming in causing a prolonged surge in ...
1
vote
2answers
1k views

php-fpm: very high server load

Since today my webserver (nginx + php-fpm + mysql on a VPS) is very slow. htop says: 1 [|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%] Tasks: 63 total, 13 running 2 ...
2
votes
3answers
288 views

What kind of Windows-based “process accounting” software is available?

Linux has pacct and kernel-based processing. What equivalents are available for Windows? I am aware (and use/recommend) of Process Explorer, but that only tracks real-time stats, with non-portable ...
3
votes
1answer
4k views

CPU Usage while running command in command line

I am looking for a way to output CPU usage percentage via the command line. I ran across this: wmic cpu get loadpercentage which gives me the desired percentage output however I want to test the CPU ...
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 ...
3
votes
1answer
2k views

Amazon EC2: how to find out detailed CPU usage?

I am running several EC2 instances, and I want to know the exact work my CPU is doing. On "normal" machines I am doing this with munin and its CPU plugin which looks at the statistics provided by ...