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4
votes
1answer
158 views

mongo and app server cpu

The beginning: We are using uwsgi and I decided to switch our configuration to use more workers/processes. Why: We have been seeing a traffic increase lately and in my tests with apache benchmark, ...
3
votes
1answer
93 views

High CPU on MySql Fusion-io server

I've just finished reading this old Q&A which had some really good detailed information on a similar setup to ours, though unfortunately our problem (now) is not with replication. MySQL ...
2
votes
1answer
769 views

How to trace high CPU Apache process to particular virtualhost

Looking at the output of top I notice that intermittently there are one or two Apache processes consuming a high amount of CPU - anywhere between 50% - 90% The spikes in CPU usage come and go quite ...
1
vote
1answer
104 views

Website performance sluggish - High CPU and Disk Usage

Over the past couple of days my website's performance has been very sluggish, with queries taking a lot of time to execute. My CPU usage hit around 100% 4 times this week. Here is the output of top at ...
1
vote
1answer
206 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 ...
1
vote
1answer
575 views

Limit CPU usage by Apache processes

I know there is a nice mod called mod_loadavg, but it seems it doesn't work with Apache 2.2.22. Can you tell me what else should I use ?
1
vote
1answer
427 views

Mysterious per-session CPU limiting?

TL;DR: CPU-hungry processes are sharing cores on a multi-core server while other cores sit idle, whereas I expect the Linux scheduler to distribute jobs evenly across cores. What could cause this ...
1
vote
1answer
76 views

CPU spiking in Win2003 server with High NDM activity

We have a Win2003 server, where we receive files through NDM and at any time, we would be receiving 6 files from different sources. The CPU on this server is always > 95%, which causes all the ...
1
vote
1answer
424 views

Debian (Lenny) X2Go Client with 50% CPU

My x2Go Client uses too much cpu power, more than 50% all the time, even when I don't have an open remote session. Does anybody know how to check where the error (?) is located? Thanks
0
votes
1answer
39 views

htop CPU usage information does not look consistent

Please have a look at htop screenshot below You can see there that current host has two CPU cores (or CPUs). All processes are ordered by CPU usage descending. So how is it possible that with ...
0
votes
1answer
24 views

Allow Apache use more memory

I use apache2 behind nginx on 8 core CPU 48GB RAM server. Now my system uses only 3GB of all memory, but there are high load on CPUs. How can I use my free memory instead of CPUs time? I also use ...
0
votes
1answer
271 views

Optimal configuration of “Processor load is too high” trigger in Zabbix

I monitor approx. 10 Linux servers with 4 CPU cores each with Zabbix. I was receiving way to many false alarms from "Processor load is too high" trigger lately. The "Processor load is too high" ...
0
votes
1answer
50 views

PostgreSQL queries slower than before?

I am using PostgreSQL 9.3 server on my production server. Everything had been working fine for the past couple of months. But since the past week or so, PostgreSQL seems to have becomes very slow with ...
0
votes
1answer
117 views

server using too much cpu with nginx and gzip enabled

I have magento website on dedicated server. I decided to use gzip to save ban-with for magento websites and wanted to load them faster. But now server is using %250 more cpu if I click on a category ...
0
votes
1answer
91 views

Why does Apache split up the CPU for www-data processes out of 100 or 200?

It seems like Apache always splits up the CPU usage for www-data processes out of 100 or 200. Why is this? For example, one www-data process = 100% CPU usage: http://i.imgur.com/mfRuOSm.png Four ...
0
votes
1answer
815 views

VPS CPU usage very high

I just switched my hosting to a VPS. I will admit that server admin is something I am very very new at. Anyhow, I am getting repeated emails about my server load exceeding 100% so i clearly need to ...
0
votes
1answer
171 views

High CPU usage in RHEL machine

I have RHEL machine that runs postgres-9.1 database. In a particular time, sar output shows as follows: Refer link for snapshot: http://imgur.com/gKcOhOX,vNwTpwC#0 where as %user is high between ...
0
votes
1answer
104 views

Where should I start to try and debug a CPU spike and timeout when logging in to a Moodle site?

apologies for the newbie nature of this question .. I am a web developer though don't have too much experience maintaining servers or debugging and fixing performance issues. I have a Moodle site ...
0
votes
1answer
422 views

12.04 Migration Process time delay

We have an issue in our server that is the migration process in taking time and also the load in the server is getting high due to that. No LSB modules are available. Distributor ID: Ubuntu ...
0
votes
1answer
34 views

MySQL Process Big

Ok, so I don't know if this is a repeat question so I'm sorry if it is (I couldn't find anything like it after searching =/) My server seems to be running what seems to me a larger than normal mysql ...
0
votes
1answer
40 views

How to find out CPU usage of DLLs within an instance of svchost.exe

My Windows Server 2008 R2 should be almost idle, yet it's taking about 12-15% CPU almost all the time. The busy process is an instance of svchost.exe Using SvcHost Process Analyser, I've established ...
0
votes
1answer
301 views

Understanding CPU Throttle

kernel /vmlinuz-2.6.32-379.22.1.lve1.2.17.el6.x86_64 ro root=UUID=7cb0b445-0f63-4ef1-ab73-93c114d8ef6c rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto ...
0
votes
1answer
595 views

Which Apache parameters responsible for high CPU usage and slower response?

Two dedicated separate servers running with identical configuration of hardware (Dual E5-2620 32GB) in similar environment (CentOS 6.3, Apache+PHP+MySQL) serving similar tasks, but behaving in ...
0
votes
1answer
60 views

High mysql throughput / cpu utilization

Once in a while, our server starts lagging. It always start around 6:00 ( GMT + 1) in the morning and ends around 3 till 4 hours later. We have munin installed and we see a peak in CPU utilization ...
0
votes
1answer
332 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 ...
0
votes
1answer
664 views

How do I troubleshoot high vmstat sy

I have a Solaris server with very high vmstat sy time. What tools can I use to identify which process is causing the high system cpu usage? kthr memory page disk ...
0
votes
1answer
189 views

Windows 2000 Domain Controller CPU running at 100%

We are running a Windows 2000 Server as a domain controller and file server. 2 weeks ago, the machine was running fine. Then, after a power-outage and a restart, the machine became sluggish and ...
0
votes
1answer
213 views

CPU/ memory utilization

WE have a job running very slowly. And I required to produce the analysis of CPU/ memory utilization during that backup.Also need statustics around the database performance for that batch job. How to ...
-1
votes
1answer
85 views

Using SNMP to retrieve CPU Idle, User and System, Raw Information 32 bit counter

I am using snmpget to retrieve raw information from: ssCpuRawIdle.0 ssCpuRawUser.0 ssCpuRawSystem.0 As I understand they are on 32 bit counters. I also use ifOutOctets and ifInOctets to retrieve ...
-1
votes
1answer
50 views

How to configure Apache so that I can get server resource stats per website / per script

How can Apache be configured so that it will be simple to get server resource stats (CPU, memory) per website (as defined by a separate sites-enabled entry) and / or by script (each .html or .php file ...
3
votes
0answers
195 views

How to investigate the cause of a 100% CPU event that lasted for hours?

Yesterday the CPU on my Xen-based VPS server went to 100% for two hours and then went back to normal, seemingly naturally. I have checked logs including syslog, auth.log and more and nothing seems ...
2
votes
0answers
121 views

Vmware 5.1 ESX linux host cpu keep climbing overtime

I have Debian lenny with php and mysql, in Vmware 5.1 ESX. Cpu keeps climbing over time. After about 50 days, cpu usage is 100% by apache and mysql but it is climbing day by day. If I restart these ...
2
votes
0answers
246 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 ...
1
vote
0answers
165 views

Amazon EC2 T2 Small Instance CPU Usage Exceeding Limits

I am running WHM/Cpanel on an CentOS6.5 AMI on a Amazon EC2 T2.micro Instance. T2 instance baseline performance and ability to burst are governed by CPU Credits. Each T2 instance receives CPU Credits ...
1
vote
0answers
86 views

virsh vcpu_period and vcpu_quota

I have been looking into ways to divide my CPU amongst KVM guests other than by just setting vCPU access limits. I understand the concept of cpu_shares which can be set/displayed with virsh schedinfo, ...
1
vote
0answers
91 views

High CPU interupts when CPU usage is very low

I have a CentOS 6 VM running on Win2012 Hyper-v server. This server has 12 processers, 60GB memory, Raid-5 SSD. There's nothing running on the server yet, but it has very high cpu interrupts, always ...
0
votes
0answers
22 views

Counterintuitive drop in CPU

I am running a memcached service in a linux container pinned to a specific physical core. As expected the CPU increases when the number of requests increase. The requests are sent from a workload ...
0
votes
0answers
35 views

Wordpress High load average 18 and cpu 81% on a dedicated server

my website works fine the day; load average below 3 and cpu below 50%. but at night load average 18 and cpu 81% and the website become very very slow. Photos are showing the active visitors at ...
0
votes
0answers
47 views

High CPU load because high CPU time for sys

I am using MariaDB galera cluster with two nodes + one node for arbiter. My system has 24 core CPU. I am getting stuck with CPU bound. Sometimes, my system consume CPU time to 1000% and CPU load get ...
0
votes
0answers
29 views

High cpu usage of Play server when started by monit

When I run "play start" from command line, the CPU load is very light. But when monit starts the program (as the same user), then the CPU usage tends to 100 - 130% all the time! Here is the content ...
0
votes
0answers
65 views

Tomcat reach close to 200% CPU usage even after I stop all applications using Probe

I have a running tomcat that is reaching 198% CPU usage. I though that maybe it was one of its web applications however, I stopped all applications using Probe but the CPU usage did not go down. This ...
0
votes
0answers
52 views

How to Prioritise ssh logins (nice)

Exact duplicate of this question, which has an accepted answer that doesn't solve the problem. How do I set sshd to run with a higher priority, so that even if the system is massively overloaded ...
0
votes
0answers
81 views

high mysqld cpu usage after moving to new server

Just moved to a new (more powerful) server with only one website running on it, no changes on the website, but now I got a horrible high CPU load and I can't find out why. top: top - 22:54:08 up 1 ...
0
votes
0answers
41 views

Server usage topped 100% and crashed - how to diagnose and prevent

I'm running a small webserver on Ubuntu 12.04. Last night, the server topped off at 100% cpu usage and crashed. This is unusual as I'm normally around 1-5%. I suspect a DDoS attack from someone ...
0
votes
0answers
69 views

How to solve problematic cpu load due to encryption when using SFTP on a VM

my company is trying offer a sftp service for a big amount of customers. The serving machine will be on a VM and tests have shown that, with an increasing amount of simultaneous users, the cpu becomes ...
0
votes
0answers
220 views

MySQL service takes a lor of CPU (780%)

I have a web server with MySQL and apache2. Server running a blog engine and normally it works fine. Yesterday (this is the second time) MySQL takes high CPU usage (790%) and the server hangs. The ...
0
votes
0answers
214 views

CPU usage rises to 100% in a few minutes on Tomcat web sever

I have an web app running on Tomcat 7 server. The rest of the configuration is: Intel i7 3930 32GB RAM 2x2TB HDD 20TB Bandwidth Debian 6 mysql 5.5.9 I'm using Ganglia for monitoring the load. ...
0
votes
0answers
100 views

Get an OpenVZ container's cpuload realtime in a bash script

I have a bash script which uses CPU cores rather intensively. Recently my VPS was suspended due to server load. The main reason is a cron job for a bash script which checks for Wordpress plugins and ...
0
votes
0answers
110 views

cannot find high load cause

I cannot find high load cause. CPU usage is not high. Maybe disk is causing high i/o, but disk utilization is not that high too. The peaks around 4:30am is backup time and not that important.
-1
votes
0answers
12 views

Munin interrupted graph for today, but normal for days ago

I have a trouble with munin plugins (it lasts about a month). One of plugin's view looks like: But, when i go to see this period 2 days ago, graph has normal view. But i am sure, 2 days ago this ...