0
votes
0answers
37 views

Why my amazon m1.small ec2 instance goes 100% everyday at exact time

Not sure what is happening, my instance goes 100% CPU usage two exact times during the day one at 11:33 UTC and another at 3:38 otherwise rest of the day usage is under 10%. I didn't find: 1. Any ...
3
votes
2answers
422 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, ...
0
votes
1answer
187 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 ...
2
votes
2answers
899 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 ...
-1
votes
1answer
34 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 ...
0
votes
0answers
69 views

Weird consistent EC2 CPU spikes

One of our m1.small EC2 instances, running a Node.js web server, regularly gets some CPU spikes. It doesn't seem to matter what the peak CPU reaches, but whenever our traffic approaches the max for ...
0
votes
1answer
548 views

How can I diagnose and fix frequent 100% cpu utilization from kernel?

I have an Amazon EC2 micro instance running an old 2.6.16 kernel. It runs postfix, apache, and mysql. During normal loads, it's load average is around 0.05, and it runs this way 95% of the time or so. ...
2
votes
1answer
437 views

EC2 Amazon Linux AMI MySQL CPU @ 62% When Idle?

I am running MySQL on an Amazon Linux AMI. There is nothing connected to it. There are no connections and no other applications running that use MySQL. It is completely idle, but yet, top is reporting ...
2
votes
1answer
461 views

I/O and CPU differences between dedicated hosting and Amazon EC2

I'm looking to run a high population Minecraft server (150+ players online at a time). For those unfamiliar with the Minecraft server, it is a (non-multithreaded) application written in Java (some ...
3
votes
1answer
1k views

Amazon EC2: how to find out detailed CPU usage?

I am running several EC2 instances, and I want to know the exact work my CPU is doing. On "normal" machines I am doing this with munin and its CPU plugin which looks at the statistics provided by ...
2
votes
1answer
485 views

top, w, ps showing wrong CPU times

I've spotted this trait recently on some of my Ubuntu servers (10.04.2) on Amazon EC2 (not noticed this on any physical boxes), and can't quite comprehend how it's getting these figures. They can't be ...
0
votes
2answers
219 views

How many cpus needed to check a 100 million digit prime number efficiently?

If I had access to potentially large number of CPUs and wanted to quickly check 100 million digit numbers for primality using a map-reduce architecture, how many CPUs would be necessary? Each of the ...
0
votes
0answers
242 views

How to get the CPU speed (which maybe variant) on the fly?

I'm curious how to evaluate the current speed of a Amazon EC2 t1.micro instance, as there's burst time slots, the current CPU speed is not static determined, as shown in /etc/cpuinfo. Is there some ...
2
votes
1answer
204 views

EC2 instance CPU in thousands

I started a new instance (c1.medium) and top show some crazy cpu usage PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 9561 ubuntu 20 0 84888 ...
1
vote
1answer
588 views

What would be a ec2 unit equivalent of a X5670 hex core xeon

A ec2 compute unit is 1.0-1.2 GHz 2007 Opteron or 2007 Xeon processor. I'm looking at a X5670 hex core xeon: http://ark.intel.com/Product.aspx?id=47920 Is it even possible to compare the 2? I'm ...
1
vote
2answers
1k views

What is CPU burst?

Amazon has recently announced Micro instances for Amazon EC2. I'm also keep reading about "... allow you to burst CPU capacity when additional cycles are available." My question is, what does CPU ...
1
vote
4answers
1k views

100% CPU keeps me from logging into the machine

I have a CentOS 5 instance running on Amazon EC2. The normal CPU usage hovers around 10-20%. About 4 times in the past week, however, CPU usage has suddenly shot up to 100% and just stayed at a ...