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

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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. ...
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2answers
455 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
1k 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 & ...
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2answers
547 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 ...
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2answers
1k 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 ...
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1answer
339 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
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2answers
864 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 ...
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1answer
1k views

How to resolve high CPU + excessive stat(“/etc/localtime”) and clock_gettime(CLOCK_REALTIME) calls

I've been experiencing really high CPU on a ruby on rails app (see stack below) and have been trying to diagnose the possible causes to no avail. Stack: ruby 1.9.3 rails 3.2.6 Apache/2.2.21 ...
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1answer
1k views

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 ...
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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 ...
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2answers
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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 ...
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0answers
267 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 ...
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1answer
752 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 ...
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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 ...
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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: ...
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2answers
388 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 ...
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1answer
136 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 ...
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3answers
195 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
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1answer
490 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 ...
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2answers
304 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?
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0answers
253 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 ...
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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 ...
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2answers
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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 ...
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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 ...
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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 ...
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1answer
368 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 ...
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2answers
1k 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
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1answer
647 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 ...
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1answer
140 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 ...
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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 ...
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1answer
267 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 ...
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1answer
144 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
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1answer
381 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 ...
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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 ...
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2answers
708 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 ...
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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
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2answers
800 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
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1answer
1k 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
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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
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1answer
577 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. ...
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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
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2answers
384 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 ...
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4answers
3k 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 ...
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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 ...
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1answer
255 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?
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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
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3answers
618 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 ...
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1answer
237 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 ...
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1answer
298 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 ...