Censum

"Garbage Collection is my biggest issue"

Censum is the analysis tool that tells you in plain English what your Garbage Collection (GC) performance problem is and how to fix things.

** Try Censum today! **

How do I try it?

To get hold of an evaluation licence for your company, join our Friends of jClarity programme - the community which brings together our customers, partners and awesome people we know. Let's slay GC performance problems together!

Simple answers for a difficult domain

GC is a difficult, specialised area that can be very frustrating for busy developers or devops folks to deal with. The JVM has a number of Garbage Collectors and a bewildering array of switches that can alter the behaviour of each collector.

Censum does all of the parsing, number crunching and statistical analysis for you, so you don't have to go and get that PhD in Computer Science in order to solve your GC performance problem.

Censum is unique

Censum is designed for use by hardworking developers and devops folks. That means:

• Censum gives you straight answers as opposed to a ton of raw data.
• Censum can eat any GC log you care to throw at it.
• Censum is easy to install and use.

But I love graphs and data!

Ah, you're one of us are you? Well, Censum will happily display a metric ton of data and some really cool graphs. Come find us at a conference, there will be beer and talk of GC, it'll be awesome!

How does Censum work?

Censum parses your GC log files (large or small) and runs a suite of analytics over the raw data.

The result is returned to you in plain English with solid recommendations which you then act on. For example:

• Change your serial collector to a parallel one.
• Adjust heap space sizing to avoid premature promotion.
• Tweak the data structures in your code to be GC friendly.

Installation?

Censum technology comes packaged in several ways - Cloud applications and SAAS providers are taken care of, but so are gearheads that want a desktop tool for their enterprise applications.

Whichever way you want to use Censum, we've streamlined the installation and deployment process. Your devops people probably already have too much software to worry about.

Basically you download a zip file, unzip it and either run the JAR file directly or execute the runCensum.sh script.

In order to feed Censum useful logs you simply need to add the following command line parameters to your Java application:

• -Xloggc:<filename>
• -XX:+PrintGCDetails
• -XX:+PrintTenuringDistribution