CPU is the portion of a computer system that carries out the instructions of a computer program, to perform the basic arithmetical, logical, and input/output operations of the system. The CPU plays a role somewhat analogous to the brain in the computer.

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get cpu usage with command and top [on hold]

I want get cpu usage. I used this command : top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1}' But return 100%. I dont know what to do.
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19 views

How the network packets are transferred to the memory on linux? [migrated]

Is there some command or tool for monitoring network packets and how those packets are handled by the memory and than proceeded to the CPU on linux platform? Using tcpdump I can capture many apache ...
1
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1answer
40 views

CPU 100% idle but still showing load average

I have a Blade Server with CentOS 6.4. On idle state it shows a constant load average of more than 1. However I prepared another machine having the same hardware and CentOS version and its load ...
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0answers
10 views

CPU - RAM MONITOR TOOL FOR WINDOWS SERVER 2008 [duplicate]

I have a windows server 2008. I am looking for a free monitoring tool for CPU and RAM. My boss wants something really fancy and the one provided by windows is not what he is looking for. Anyone have ...
3
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2answers
65 views

Intel Xeon E7-4807 vs Intel Xeon X5690

We replaced our main line of business server with a new one. The old server had dual Xeon X5690s in it (2 generation old chip), the new server has quad Xeon E7-4807s. We expect processor performance ...
3
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2answers
163 views

Apache 2.4.9 100% CPU load of random workers

I own a t1.micro EC2 instance. After release upgrade of Ubuntu to saucy I got Apache 2.4.6 and I started noticing 100% CPU load like this top - 19:37:58 up 2:55, 2 users, load average: 3.90, 2.90, ...
1
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1answer
41 views

HP ProLiant DL360p Gen8 how to choose correct heatsink? [closed]

We purchased a new HP Proliant DL360 gen8 server (670640-425) (HP DL360p Gen8 E5-2620 Base EU) at the same time we purchased the cpu/heat-sink package for a 2nd CPU (654782-B21) (HP DL360p Gen8 ...
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0answers
27 views

What happens to the files when they are being decrypted? [migrated]

I have the server's webroot directory mounted on a partition which is being protected with LUKS encryption. I want to know what happens to the files within when that partition is being decrypted. Does ...
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2answers
69 views

Uncorrectable Machine Check Exception on HP DL360 G7

i have about every hour in IML (hplog) from HP DL360 G7 record: CRITICAL: CPU - Uncorrectable Machine Check Exception (Board 0, Processor 1, APIC ID 0x00000003, Bank 0x00000005, Status ...
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0answers
22 views

IIS: how to determine most effective CPU throttling % [closed]

We have about 30-35 sites per server across 8-10 servers at a time depending on load, for a total of ~300 sites. The sites are more or less hosting slightly customized versions of the same .net web ...
0
votes
1answer
64 views

High CPU% stolen on EC2 instance at extremely regular intervals

I have a m1.small EC2 instance on AWS running some websites. I noticed my CPU usage have peaks at regular interval of times, exactly every 30 minutes (0:06, 0:36, 1:06, ...). I've checked my crons (I ...
3
votes
1answer
1k views

Centos 6.5 crashing with kernel panics

I recently built a small cluster for running Solr. The cluster consists of 12 Supermicro Blades running E3-1270V2 with 32GB of ram. 11 of these servers are running fine. One of them crashes on me ...
4
votes
2answers
93 views

VMware lockup CPU spike

After a CPU usage spike, the host server for VMWare ESXi 5.5 became unresponsive regarding the DRAC, Network, and cluster membership. The host is a blade module is Dell PowerEdge M820 in a Dell ...
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2answers
76 views

CPU usage command for monitor script

Is there a command for FreeBSD (except the top -P) I could use to monitor my dedicated server CPU usage? I am in progress of writting my bash script which will notify me as soon as any of the CPU core ...
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0answers
35 views

CPU 99% in new server [closed]

Two of our clients have recently upgraded to brand new servers running Windows server 2012, but servers worked great for a while (a month or so) after that the cpu utilization is steady at 99% At ...
1
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2answers
51 views

/sys/kernel/debug/tracing/per_cpu shows way more cpus than I have

I have 8 logical CPUs in my linux box. (As seen from /proc/cpuinfo). When I look in /sys/kernel/debug/tracing/per_cpu it shows 32 CPUs. Why the difference? If it matters, I have hyperthreading ...
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0answers
54 views

Does installing more CPUs (Intel) than indicated by “Max CPU Configuration” prevent all cores from being used?

I am looking at a server that has 4 physical processors, the Intel documentation indicates they are 6 core processors but this WMI query WMIC CPU Get NumberOfCores, NumberOfLogicalProcessors ...
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1answer
55 views

HP ML150 G6 upgrading RAM/CPU beyond specs?

I am being told that some limits on some HP servers can be crossed. Do any of you have any experience with that? A ML150/G6 is limited to 48GB RAM but I have been talking to a German company that ...
0
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1answer
76 views

Cloning a server across architectures

I have this Linux (Debian) server that I want to duplicate, with all its services and their settings. Actually, it is to replace the existing server with newer hardware. I'd like the process to be as ...
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0answers
15 views

Understanding Logman - Processor Time

As part of a project I am working on, I have to monitor server/desktop performance to ensure there is no degradation as a direct result of my work. I thought I would set up some performance counters ...
2
votes
2answers
363 views

Nginx + php-fpm - Each php-fpm process 70-100% cpu when running

I have a situation in which the following is taking place: We are on linode with 8-core, 8gb of ram , 2.6 ghz - using nginx + php-fpm - we are getting extremely high graphs of cpu usage (which we ...
0
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2answers
55 views

How long/how hard should I stress test CPU and memory before declaring it OK?

One of our Dell PowerEdge LCDs was showing "CPU 2 machine check error", but I couldn't find anything in the logs regarding MCE or "Hardware Error." I cleared the message, but I wanted to run the ...
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0answers
20 views

mpm worker - high server load

i have 10 wordpress site with this plugins : w3 total cache + wordpress seo my server load some time goes up. vps : 1gb ram , 4 cpu 2.6 mpm worker : StartServers 2 ServerLimit ...
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1answer
65 views

Directadmin Apache server finetuning advice

I currently have a dedicated server from which I provide shared hosting for some clients of mine. Server specs AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ 4GB DDR RAM 1x Seagate ...
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1answer
44 views

What CPU upgrade can I fit to my server without busting something? [closed]

I currently have a 1U rack mounted dell poweredge 1950, it came with 2x Intel Xeon 5160's as standard, but the server is starting to max CPU usage too often and I'm looking to upgrade the CPU without ...
1
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1answer
77 views

Building a SAN on 2012R2 “Storage Spaces” - More Cores, or Faster Single Thread?

I am considering building a SAN unit on Server 2012R2 using Storage Space. In that situation is it more helpful to have more CPU cores, or less faster cores?
3
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2answers
227 views

CPU/RAM upgrade for HP Proliant ML350 G5

I have an HP ML350 G5 server with a single Intel 5130 dual core Xeon installed. Is it possible to upgrade it to a dual processor system? I've looked at the quickspecs and spent a couple of hours ...
2
votes
1answer
28 views

Events/1 and Server Interrupts

Currently I am seeing a lot of CPU usage on events/1 and I was wanting to know how to figure out what is causing that? cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 ...
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3answers
157 views

Dell T300: micro code update warning

I picked up a Dell T300 server with an E5345 CPU and BIOS gives me a "Warning! No microcode update loaded for processor 0" I have to hit F1 to continue or F2 to enter setup. Upon continuing ...
2
votes
2answers
332 views

Amazon EC2 micro instance has 100% CPU usage

My Amazon EC2 micro instance has 100% CPU usage very often. I only have a wordpress installation on it. I'm still in production mode, so no users but I get 100% CPU usage. Does someone know how to ...
0
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1answer
224 views

How to view CPU Load on Windows Server 2008 [duplicate]

It's a simple question, really, I'd like to check the CPU Load of my Windows Server 2008 machine. This value gets reported to Zabbix, but I have no clue where Zabbix gets the value from. All I can ...
3
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2answers
171 views

Windows Server 2012, Hyper-V and CPU Usage

The server sits on RAIDed SSD drives too. Is there a reason why the host machine seems to get more CPU over a VM in Hyper-V? The guest machine is at 100% CPU while the HOST is only at 20%. Anywa ...
0
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1answer
67 views

SNMP tick counter wrap around logic

I'm trying to calculate CPU usage in percent over SNMP of a remote agent based on the ssCpuRaw* tick counters. As I understand it they are all of type COUNTER(32 bit) so tey'll wrap around to zero ...
4
votes
1answer
71 views

Should APIC be used on VMs?

I'm provisioning some VMware and Virtualbox VMs, both 32 and 64 bit and all my boot commands start with /install/vmlinuz noapic. Searching for information about APIC etc. around the web doesn't give ...
0
votes
1answer
51 views

virt-top says guests are inactive

i was searching a program to show RAM and CPU usage of my KVM guests. I found virt-top which was working yesterday very good. Today i was starting it again and it dont want to work: virt-top 19:46:51 ...
0
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1answer
130 views

Is it good to set cpufreq as high as possible all the time?

Originally this question was about why I have cpuinfo mhz of 1400 when I purchased a 2300 mhz server cpu. With the help of HBruijn (thx!) and using cpufreq-info tools I found out my real specs: ...
0
votes
1answer
98 views

Trading Engine running on RHEL 5.x [closed]

Before asking question quick background about myself working at one of trading company this is my 1st job as sysadmin I have finish my RHCE no experience how production server work. In our company ...
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votes
1answer
26 views

How to increase the default number of Postgres processes?

Disclaimer: I'm relatively new to Postgres. On my production EC2 DB server, I'm experiencing high CPU usage on two of the five CPUs, ultimately resulting in latency for users of my application. I've ...
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votes
3answers
121 views

Mysql process overload cpu

We have this mysql process running and kicking the cpu up to 200%. Any idea how this could be fixed? /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql ...
1
vote
2answers
130 views

How could Load average numbers from 'htop' exceed 100% CPU utlization? [duplicate]

I use 'htop' to monitor my web server. It's recently quite loaded and the Load average is showing something like this: Load average: 3.10 2.56 1.63 I searched the web about these numbers and I ...
0
votes
3answers
149 views

Linux server became extremely slow

I have a file sharing website, and my files hosted in a server with those system specifications: 32GB RAM 12x3TB 2x Intel Quad Core E5620 I have files in this server up to 4gb for each file. 446gb ...
0
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0answers
175 views

ksoftirqd causes very high cpu usage - server is sometimes completely unusable

the ksoftirqd process on my root (Ubuntu 12.04 x64 with kernel 3.11.6) causes occasionally a very high usage of the first cpu core (sometimes only 5 minutes, then 30 minutes long, ... it feels just ...
2
votes
0answers
50 views

IBM xSeries 306 CPU Speed

I have an IBM xSeries 306. The system has been flawless until a week ago. It's a Pentium 4 Dual Core CPU. The CPU speed is 3.20 gHz. Now, it shows 4.26 gHz or 2.16 gHz when the POST screen comes ...
3
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1answer
76 views

Investigating a potential CPU failure

On a Ubuntu server that I am using for computations I have recently observed that some CPU extensive programs (GUROBI,CPLEX) often segfault. Being in correspondence with tech support of the ...
2
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2answers
298 views

How to test KVM guest CPU maximum allocation limit?

Running Ubuntu 13.04 Host and vm Guest. Using virtio for hdd, nic. Max-allocaion CPU cores is 6, minimum is 2. here is a screenshot for clarification: http://i.imgur.com/GmYQBMP.png Ive made a vm ...
0
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1answer
78 views

Windows Server 2012 - CPU utilization

I have Windows Server 2012 machine which has 32 cores. In Task Manager, it shows 32 cores and 64 logical processors, because of hyperthreading. My CPU utilization is in the screenshot below: Can ...
5
votes
2answers
184 views

vCenter Cluster CPU utilisation data inaccurate

We have quite a reasonably sized vSphere 'estate', with 80% of our Windows/Linux servers virtualised, running across six Datacentres. One of my challenges is medium to long term capacity planning, ...
0
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1answer
131 views

Ksoftirqd high load

Recently I notice that one ksoftirqd is always in top of my processlist and takes 90% - 100% cpu. PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND ...
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1answer
64 views

MySQL CPU High Usage

I got a problem with CPU usage on my VPS, mysqld use 100% CPU and my site go down, i have a small package, 512MB Ram, wich 300 is free, and my site has 1000-1500 unique visitors, and 50.000 views / ...
0
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1answer
109 views

pbs check how much cpu a job is using / job % cpu usage

On a cluster a job is submitted to run on N CPUs. qstat -f doesn't show how much CPU resources the job is using other than the time. How does one check whether 100% of each CPU power is used? It is ...