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

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2
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1answer
40 views

CPU is only used 50% on full load on a Windows Server 2012 R2

I use Windows Server 2012 R2 on my home server (it's a mini-ITX PC based on an Asrock E350M1/USB3 motherboard, so it's not a strong enterprise server). My problem is that even when I run multiple ...
1
vote
0answers
34 views

High CPU Usage Top isn't Showing Processes

Hey I'm having a weird issue that I'm having some difficulty diagnosing. I have a VM that went down due to high CPU usage today. The websites on this VM are very low traffic, so I knew something ...
-1
votes
0answers
15 views

Administrative Process “taskhost.exe $(Arg0)” using 25% of CPU

I have recently noticed that my CPU has been heavily taxed at 25% usage almost every day, usually lasting a long time, even when absolutely no applications are running. I found that there is a single ...
0
votes
1answer
23 views

Low CPU utilization on IIS with no resource contention

I have an ASP.NET application running on IIS7.5 with .NET4. At some specific times, I receive so many requests from the clients (around 10000 in two minutes) and it takes around 20 minutes till they ...
0
votes
0answers
20 views

Sudden increase in my CPU usage during random moments(Win Server 2012)

At random times, no matter if I am online or not I see that my server having increased Process usage spikes, as you can see in the picture: So I go inside the Dashboard on the Server Manager, look ...
0
votes
0answers
272 views

Is there a fix for Windows Server 2008 Datacenter (non R2) that will fix the same issue as 3050265 for R2

An issue I have had for a while with 2008 Server Datacenter and only recently with my R2 box is periodic CPU hogging by the wuauserv.exe service (Windows Update) which kills all my websites. I see ...
6
votes
3answers
182 views

CPU overloaded but no proccess is using more than 1% [duplicate]

I am monitoring a Cpanel (centos) server which have a 2-core CPU (4 virtual CPU cores) and it seems to be overloaded because I got this values using top: load average: 11.80, 13.30, 13.02 Cpu(s): ...
-2
votes
1answer
73 views

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 ...
0
votes
3answers
25 views

Log pid than cpu higher than a value

I'm looking for a way to log the pid of process higher than a fixed value of cpu (ex 40%). I tried with command like this : ps -eo pcpu,pid,user,args | sort -k 1,2 -r | head -10 But, first, it sorts ...
0
votes
0answers
42 views

Debian Jessie 8 idle on fresh install always a little too high, shows rcu_sched ksoftirqd kworker causing cpu load

Are the days of 0.0 cpu load on an "idle" server gone? I have another server (centos/redhat) 32GB ram that actually runs apache/MySQL/Lamp, mono, redmine/ruby, and other junk and its still shows me ...
0
votes
1answer
26 views

What are the tools needed to best asses a load balancer?

I'm building a Paas with Docker container in the field of Networkf Function Virtualization. I need to deploy some load-balancers inside containers. I need to asses the load balancers in differents ...
0
votes
1answer
32 views

How to find out what is being accesed in Apache logs

I am managing a dedicated server with hundreds of websites, in which there is a main log for Apache. The server has spikes in Apache CPU usage once every 4 or 5 hours and after a review I found in ...
5
votes
2answers
183 views

cpufreq-info differs from /proc/cpuinfo?

I have a server and I want to ensure it's always running at maximum speed, never in energy-saving mode. I've tried a few strategies (aside from rebooting and changing the setting in the bios, which I ...
0
votes
1answer
40 views

Mono uses just one core on the server

I have a .net application running on mono 4.0.1 in ubuntu. The application is multi-threaded but the CPU usage not more than 25% on 4 core machine. I think mono is just running on one of the cores ...
0
votes
0answers
39 views

VPS Server shoots to 900% CPU Utilisation for 10 to 15 minutes

I've just taken a VPS Server with Assured 1 core AMD opetron and burstable to 8 cores. RAM is 5 GB Average Usage so far been around 1 Cpu, but at a point of time - when checked through monitoring - ...
1
vote
0answers
46 views

determine if threads on a cpu are blocked? What are the causes of thread blocks?

The load-average reported by uptime command also displayed in top provides the the average run-queue length over time (1, 5 and 15 minutes) The run-queue length is the sum of the number of threads ...
1
vote
0answers
31 views

Sendmail is taking huge amount of CPU [duplicate]

My dedicated server is slowing down since 2 days. I checked the RPM and the CPU usage has gone from less than 10% to more than 50%. Rebooting the server didn't help. So, I tried top command: top - ...
0
votes
2answers
71 views

Limit CPU / Mem usage for certain processes? [closed]

I have installed maldet for malwere detection and it runs daily via a CRON task. In my server usage I see every night a peek usage of CPU which goes up to nearly 100% CPU usage. Is there a way to ...
0
votes
3answers
344 views

kswapd often uses 100% CPU when swap is in use

Most of the time when my computer starts to need swap, I see a massive spike in CPU usage (kswapd0 is consistently using 99%-100% CPU). According to top, the time is spent in sy (system/kernel) not wa ...
1
vote
0answers
99 views

How to assign dedicated vCPUs to specific VM on Proxmox (KVM) or what system could do that?

I'm posting this here, because what I've found about the topic is either outdated, incomplete or not suitable for various reasons. I have wanted for a long time to learn how to map specific vCPUs to ...
1
vote
2answers
43 views

Medium CPU usage but high load

I know this has been asked multiple times, and generally wa causes high load even if CPU isn't the culprit. However, in our case, wa is ~0 and CPU is at ~45% on a 4 core, 8 thread dedicated server. ...
1
vote
2answers
93 views

Low CPU and Memory utilization. Does that mean server is healthy?

On a fairly busy RHEL6 server I keep noticing on average following indications CPU Usage : 2%. CPU Load AVG: 0.4,0.2,0.1 Memory Usage: 1.3 out of 16 GB This is the CPU this server has Intel(R) ...
1
vote
0answers
150 views

strace not showing anything for thread at 100% 'system' CPU

I'm having difficulty with my Python app going to 100% 'system' CPU time across multiple threads for up to 10+ seconds. My (limited) understanding is that 'system' CPU time is time spent in the ...
0
votes
1answer
80 views

CPU seconds value very high on apache mod status even though page is generating very fast

We have a VPS on wich we have a few websites. In the last days it has experience a big load and has sometimes even stoped responding and had to restart it. After looking into it, we seem to have a ...
-2
votes
3answers
106 views

What's the advisable maximum CPU usage?

I have a VM with 8 core of processing, and occasionally the CPU usage is going to around 75 ~ 100%. I read in some places, that when the CPU usage is with more than 75% is it a trouble, and can ...
16
votes
6answers
2k views

How often do you restart a heavily-utilized Windows Server 2008R2 Remote Desktop Server (VM)?

Note: I've read How Often Do Windows Servers Need to be Restarted? but this question pertains to our Remote Desktop server specifically. We have a Windows Server 2008R2 server - a VMware ESX VM - ...
0
votes
0answers
55 views

Limited memory and CPU in the apache virtualhost

How can I limit the memory and CPU of each virtualhost on a apache running on CentOS?
0
votes
1answer
70 views

My VPSs CPU load hardly go beyond 0.2. Am I wasting my money on unused resources?

Currently, I have 5 VPSs running: Mail server (Zimbra) Database server (MySQL, PostgreSQL) ERP Server (OpenERP 7) Git Server (GoGits) Web Server (Apache, Nginx) with server monitoring application ...
0
votes
0answers
96 views

Php5-CGI is using 100% CPU on a single hit. How do I track down the culprit?

I ran into a strange problem with a Magento Store. The server was crashing when we hat a little traffic-peak so I checked what was going on. Using htop I found out that PHP5 CGI is using up to 100% ...
2
votes
1answer
79 views

Load average increasing along with firewall throughput

I've just pushed a large change to my backend code and I've noticed a massive increase in the load average in the few hours since the push. I looked at Munin for what the problem might be and I ...
0
votes
0answers
45 views

How can I store systemd-cgtop output in a text file

I want to store the result of system-cgtop in a txt file for 5 iterations. I am aware of the batch mode and I tried to do it with the following command: systemd-cgtop -b -n 5 >> result.txt ...
1
vote
0answers
72 views

Use of CPUQuota in systemd

I am trying to put a hard limit in CPU usage for a dd command . I have created the following unit file [Unit] Description=Virtual Distributed Ethernet [Service] ExecStart=/usr/bin/ddcommand ...
0
votes
2answers
106 views

When should I consider to add more RAM to VPS instead of CPU? [closed]

I have a VPS hosting a Wordpress site. When the traffic is too high, I usually see the CPUs are very busy and fully occupied. Therefore, I always try to add more CPU cores to the VPS. For example, 4 ...
0
votes
2answers
281 views

100% CPU usage on my CentOS VPS

I have a 512 MB VPS and hosting 2 WordPress websites on this CentOS server. I have installed apache + mysql + PHP + fast cgi on this server. Everything was working great from last 6 months. I have 500 ...
0
votes
2answers
377 views

Get real time CPU usage of linux process with single line command and as a simple result

I've searched everywhere and found nothing about this. I'm trying to create a small gauge that shows the CPU usage of one process specified by PID. I need the command to print a simple answer , hence ...
1
vote
1answer
52 views

Two identical servers, one of them have 2x CPU load

Http requests are splitted 50/50 between two servers. Servers are running FreeBSD 9.2, their hardware, software & application configurations are absolutely identical. But one of servers is getting ...
0
votes
1answer
230 views

Tomcat CPU and GC going crazy [closed]

Having some major issues with our Tomcat 7 installation. It used to run fine for over a year, but now the CPU is mainly at 400% - 700% (8 core machine) and in the logs I see tones of these: ...
0
votes
0answers
40 views

php process eating CPU since October

Just noticed that my server CPU is being eaten by php at a regular rate of 50-60%. Worse, this is happening since last October but I can't really remember what I did then to cause. The CPU graph for ...
0
votes
0answers
239 views

PerfMon: Processor Queue Length - Random high spikes

I'm investigating alleged high CPU usage on one of our client's servers. After about 1 business day of "normal" activity, PerfMon is reporting the following values for Processor Queue Length, and I'm ...
1
vote
1answer
399 views

CPU Usage statistic in Windows Server 2008 R2 Resource Monitor

I'm trying to analyze the performance of HPC R scripts via Resource Monitor in Windows Server 2008 R2. I have referred to this guide to get more information on the CPU tab of Resource Monitor, but I ...
2
votes
1answer
52 views

VMware Infrastructure Web Access 2-CPU Limit?

I am running VMWare Infrastructure Web Access 2.0. I have several VMs running on 24 core machine. I just looked at the most resource-intensive VM and found it is running using only 2 CPU cores of ...
1
vote
1answer
1k views

System and ntoskrnl.exe taking up all CPU

I have a Windows Server 2012 file server that is hosting .vhdx hard drives for user profiles for Windows Server 2012 RDS. Every few seconds the CPU spikes to 100% on System. Running Process Explorer ...
4
votes
2answers
376 views

How to interpret values of Perfmon counter Hyper-V Hypervisor Virtual processor\CPU Wait time per dispatch

So there is a lot of guidance on the web that advises tracking the values of the Perfmon counter Hyper-V Hypervisor Virtual processor\CPU Wait time per dispatch as the nearest Hyper-V equivalent of ...
0
votes
1answer
33 views

Can SQL Server 2008 R2 be used to allocate resources by specific program?

Recently, I have come into a scenario where I have been brought in to help manage a hosted system where we host our own product for our customer. Each customer is given a unique user to a specific ...
0
votes
1answer
96 views

VPS policy states CPU usage limitations

I have found a cheap vps solution to cover my needs. Reading through the policies of the vps service, I found that they state "CPU usage should not exceed 70%". Is there a way to prevent this? I plan ...
12
votes
7answers
4k views

High CPU utilization but low load average

We are running into a strange behavior where we see high CPU utilization but quite low load average. The behavior is best illustrated by the following graphs from our monitoring system. At about ...
0
votes
1answer
169 views

Apache2 Serverload / CPU increase from 1% up to 90% - How to debug?

I´m using: Google Cloud Compute Engine Linux Debian + Apache2 Google Cloud SQL Wordpress Yesterday my CPU started increasing from 1-5% to 80-90%. I was developing on a wordpress site as it ...
1
vote
1answer
187 views

Isolating a high-CPU PHP Process

I have a 16 CPU core server that's experiencing consistent load averages of 40-70. After camping on a top command for a number of hours, I've isolated the CPU spikes to a single user. After pressing ...
0
votes
2answers
48 views

How to measure CPU based on a threshold

We are tracking down the resource requirement for our production environment(windows). I need to find out the maximum CPU and memory utilization. I do understand that we can use the wmic command to ...
4
votes
0answers
82 views

Windows Servers on ESXi 100% CPU at year rollover

We have a number of Windows Server 2008 R2 SP1 servers running on ESXi servers. At year end rollover 2014 to 2015 the CPUs go to 100% and the machines hang. The solution appears to be a hotfix ...