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

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1answer
47 views

number of cores available on a server

I need to find out, how many cores are available on a server at that moment. For example, it is a 8 core machine and running at 50% CPU utilization. Can this be assumed as 4 cores are available? or is ...
3
votes
0answers
22 views

What process on a SonicWall Security Appliance Checks the DPI-SSL Client Inspection?

I'm interested in determining if there is high CPU usage on a SonicWall Security Appliance, but I don't know which process to check for high CPU usage. There are various options for this in the UI ...
0
votes
0answers
17 views

Definition of CPU Ready for vmware ESXi host compared to CPU Ready for a guest?

We had a guest with poor performance. CPU Usage and CPU Ready for the guest was within normal range. For the host the CPU Usage were normal (70%), but the CPU Ready for the host seems to correlate ...
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votes
1answer
28 views

High CPU being caused by garbage collection in w3wp.exe

I am having a problem with High CPU happening on my my website in IIS8. This happens randomly and not very often but it does happen especially when the load is heavy on the site. The only way to ...
0
votes
1answer
20 views

php-cgi.exe CPU load jumps after MySQL Backup

I'm running Windows 2012r2 on a new server, with Plesk 12.5 and MySQL 5.6 installed. There's a backup script which takes a DB dump and zips website data files that runs each day. However, it brings ...
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votes
0answers
52 views

Cpu Utilization and RAM Utilization [closed]

May anyone please explain what are main causes of high CPU Utilization and high RAM utilization. What are the cases when our CPU usage starts rising up? What are the cases when our Memory usage is ...
3
votes
0answers
24 views

Right way of measuring overlay network performance

I am currently examining the performance (especially UDP throughput) of different Docker overlay networks. I do this by creating point-to-point connections between two hosts that are connected with a ...
0
votes
1answer
33 views

Handling highly CPU intensive process on server

I have a Windows server machine on Amazon EC2 (m4.2xlarge) which handles web requests, does some processing using an app A and returns the results. Problem is, this app A is highly CPU intensive and ...
2
votes
1answer
51 views

Why might 'mpstat' and 'pidstat' disagree about CPU load levels?

I'm monitoring a mysql process in ubuntu 12.04 using mpstat and pidstat, simultaneously. While debugging its CPU usage, I noticed something unusual. While both tools agree that CPU load is occurring, ...
1
vote
1answer
45 views

CPU frequency governor for virtualized guest in VMware

CPU frequency governor can scale the CPU frequency up or down in order to save resources. In a physical server usually have sense, but I don't know if this is applicable for a virtual guest running ...
0
votes
1answer
41 views

Windows server 2008 R2(standard) client connection is very slow after connecting above 24 client machines? Is there any client connection limit?

Windows server 2008 r2 standard is connecting 24 cilent machines after while adding extra machines to server it gets slow. In Windows server 2008 r2 maintaining the mysql database and all other client ...
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votes
2answers
51 views

Java process stay in running state and consume CPU

I have a jar running in background on a Ubuntu server. In a certain moment, the application start consumming too much CPU (400%) and 4 child process stay in R state: N.B: the problem is ...
0
votes
0answers
18 views

Increase Memory and downgrade CPU on RAC 11.2.0.4 with 2 nodes

I have a RAC 11.2.0.4 on Linux x86 with 2 nodes with 3 databases with a total of 300GB(SGA and PGA) among all. What if a node has 512 of RAM and another node has 1 TB of RAM? What if one node has 2 ...
1
vote
4answers
76 views

10 min. bursts of CPU usage: how can I find out which processes are the cause?

The CPU usage graph above was generated by running psensor overnight on my linux box. Note the 10 minute bursts of activity consuming up to 40% of the Xeon. The machine ought to have been at idle ...
0
votes
0answers
24 views

Apache strace getsockname call is slow

While load testing I am getting almost 100% CPU usage by Apache processes. To find out the root cause I attached Apache process with strace and found slow calls. 11840 0.000063 accept4(3, ...
0
votes
0answers
98 views

Apache is using 100% CPU even with one user

Apache is using 100% CPU even with one user Apache (or should I say PHP through Apache?) is using 100% CPU for few seconds every time somebody search bugs at our bug tracker or just reload the search ...
0
votes
1answer
125 views

Unusually large number of httpd processes and high CPU load on MongoDB replica set members

I am investigating a strange behavior on 3 CentOS machines serving as a MongoDB replica set, whereas one of them is also hosting a PHP web app utilizing the MongoDB replica set. The basic setup is as ...
3
votes
1answer
75 views

How to find what processes were running at a time in the past?

I am asked to investigate a high CPU usage alert which occurred this morning. I used sar -p and saw the high CPU usage showing up at that time Next I used ps -eo pcpu,pid,user,args | sort -r -k1 | ...
0
votes
1answer
79 views

high mysql CPU usage more than %1500 on centos 6

I am running a high traffic websites on a Dedicated-Virtual 24GB RAM CentOS server hosted by the planet. Very often the server dies because of high CPU usage (%1500) When i check the running ...
0
votes
1answer
47 views

Single Thread CPU Performance with PHP

I have a lamp web server running a website that is getting very feature bloated. I have a few pages that are taking 2-3 seconds of CPU time to render the PHP. Most other pages a processed in about .2 ...
-1
votes
1answer
78 views

Windows Server vs Ubuntu base CPU usage for AWS EC2 burstable instances [closed]

I recently switched from a small VPS provider to AWS EC2. My traffic usually comes in bursts throughout the day and I therefore concluded that running multiple t2.micro instances would be by far the ...
0
votes
1answer
48 views

CPU Load on Virtual Machine

This picture shows the CPU Usage of a Debian 8 installation running on a Virtual Machine (VMWare ESXi). I'm wondering about two things here Why doesn't the usage sum up to 200% (the virtual machine ...
1
vote
2answers
52 views

What does take all the cpu here?

On a small SSD VPS I got 2 GB of RAM and 2 vCPU core (dedicated to my server), virtualized via KVM. So far so good. The server is mainly used for databases (MySQL) and fast network file storage (via ...
1
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0answers
142 views

high CPU caused by pthread_cond_wait or nanosleep

First of all, I've searched in stackoverflow.com and googled, but no effective results are found. My question is: Why does pthread_cond_wait consume so much CPU? I don't think it's normal. My ...
-1
votes
1answer
22 views

Tasks on server stay in sleeping

I logged into a server with multiprocessors and started 20 python programs, each processing part of my data. However, it cost too much time so I checked top and found all ipython processes are in ...
1
vote
0answers
27 views

Can I limit wall clock time available for process on Solaris?

I would like (many) processes to be killed if still running after certain amount of time after execution. First I have thought that Solaris’ resource management is perfect tool for the job, as it ...
1
vote
2answers
155 views

Kubernetes Disable Grafana

We are using Kubernetes and successfully running our apps. However with our pods running and no traffic our minions are running with high CPU. Looking into the issue further: influxdb and heapster ...
0
votes
1answer
82 views

CentOS CPU load and CPU Freq

I have some Dual Xeon (X5650 @ 2.67GHz) server, with 72GB of RAM and HT disabled, but I have a problem. I host srcds servers (game servers) and they are really CPU intensive. The CPU usage is usually ...
0
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0answers
36 views

Why a moved process using cgclassify doesn't get correct cpu share

Here is my test case on an Ubunut 12.04. I have a simple code that uses all cores of a multicore system as follows: useAllCores.cpp int main(){ #pragma omp parallel for for (int i = 0; i < 50; ...
0
votes
0answers
20 views

Server Recommendation for static pages only, Apache Nginix Ram [duplicate]

I have a question about setting up a new server that will be have millions of hits per day. There will probably be a max of 3 million a day with spikes up to 10 million. All the files will be static ...
0
votes
1answer
175 views

Getting 502 Bad Gateway, php-fpm takes 100% cpu

Okay, last night, around 2am on one of my servers the cpu usages went up to 100%. When I checked in this morning, I saw 5 php-fpm processes taking up around 100% cpu together. I've rebooted the ...
0
votes
1answer
24 views

Finding a cpu or disk-hogging process quickly in Windows?

Short: Best alternative of ctrl-alt-1 -> top or sudo iotop in Windows? Long: Sometimes a server or workstation might seem to hang, due to either cpu-bottleneck or disk-bottleneck. How do I ...
0
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2answers
270 views

High server load with no processes using CPU?

I'm new to managing servers, and I've run into something that's stumped me. I received a warning from my VPS provider informing me that my load usage was very high. I hadn't run into this problem ...
3
votes
1answer
354 views

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

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
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0answers
67 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 ...
0
votes
1answer
91 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
65 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
431 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
307 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): ...
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votes
1answer
98 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
43 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
341 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
44 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
46 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
363 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
87 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
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0answers
67 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 - ...
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0answers
123 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
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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
1answer
131 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 ...