Pricing excludes sales tax (See Will I be charged Sales Tax (VAT/GST)?) in the FAQ section below.

  • 7-day Free Trial
    $0
    • 7 day FREE Trial
    • FREE upgrades
    • Single user/desktop
    • Analyse unlimited logs
    • Email & phone support within 24hrs
    • -
  • Basic - Monthly Plan
    $87 monthly
    • Monthly subscription
    • FREE upgrades
    • Single user/desktop
    • Analyse unlimited logs
    • Email and phone support 24/7
    • -
  • Enterprise
    *

    Contact Us
    • Discounts for multiple licenses
    • FREE upgrades
    • Floating users/licenses
    • Analyse unlimited logs
    • Onsite Callout + Remote Support 24/7
    • Early Access features

Need more information?

Frequently Asked Questions

Need to compare hundreds of logs?

For organisations with large numbers of JVM’s it is very useful to be able to compare and contrast logs between machines and over different dates. If this sounds like you then you can use the support email to discuss!

Have questions?

Have any questions either of a sales or technical nature? Use the support email to ask us anything!

Check out Friends of jClarity

Want to see what other folks think of jClarity products before you take the plunge? You can signup to Friends of jClarity.

How will I be billed?

Illuminate or Censum as a Service Basic/Pro

We bill you using a 1 month in advance policy, with the first payment date starting the day your subscription starts.

Censum Basic – Monthly

We bill you using a 1 month in advance policy, with the first payment date starting the day your subscription starts. The minimum subscription period is 12 months.

Censum Basic – Yearly

We bill you using a 1 month in advance policy, with the first payment date starting the day your subscription starts.

Censum Enterprise

We bill you the yearly license fee up front.

I want to change plans, now what?

We can easily accommodate changes to plans for you. Please contact our Sales Team to make this change.

What if my server numbers change rapidly?

We understand that some architectures dynamically allocate servers as peak traffic occurs. Please email our support team discuss! (This FAQ question relates to the illuminate and Censum as a Service products)

Will I be charged Sales Tax (VAT/GST)?

Illuminate and Censum

If you are a UK or EU based billing organisation then you will be charged the VAT rate of your country. See the official HMRC VAT policy on this.

All other territories are exempt.

Censum Refund Policy

We hope you will be very happy with Censum. However, if you wish to return your copy of Censum for any reason, please contact us within 7 days of purchase at sales@jclarity.com to arrange deactivation of your software and refund of your payment.

Illuminate / Censum as a Service Refund Policy

NOTE: Censum as a Service is an illuminate module which can be run as a standalone service.  References to Illuminate can be substituted for Censum as a Service if you’re only using that module.

We hope you will be very happy with Illuminate. However, if you wish to cancel your subscription for any reason, please contact us at sales@jclarity.com to arrange deactivation of your subscription and termination of your subscription billing.

Do I get free upgrades when new versions come out?

Yes! Illuminate will automatically self-update and Censum will have that feature added shortly.

What data does the Illuminate / Censum as a Service Daemon send back?

NOTE: Censum as a Service is an illuminate module which can be run as a standalone service.  References to Illuminate can be substituted for Censum as a Service if you’re only using that module.

This FAQ documents the information that gets sent back from the daemon to the reporting agent.

Basic hardware information

  • CPU Model
  • Attached PCI Devices
  • Hard Disk Information
  • Total amount of RAM and Swap Space

Performance Analysis Metrics

  • Context Switch Counts
  • Time spent in User/System/Idle
  • Time spent reading and writing to disk
  • Number of processes blocked and runnable

Information required in order to show results

  • Execution Profiles, effectively stack traces with the amount of time spent in each method
  • Aggregated Garbage Collection statistics, e.g. Percentage of time spent paused, longest pause time
  • Machine Metrics for a specific problem, e.g. Amount of time spent writing to disk
  • Information about what locks your program is contending on, e.g. What’s causing a deadlock
What data does Censum send back?

This FAQ documents the information that gets sent back from Censum.

Phone Home – Basic information

  • Censum Version
  • Censum installation UUID
  • Java version

When sending in a log (error report)

  • Censum’s error log
  • GC log that you attach
Can I have Illuminate / Censum as a Service hosted in a particular geographical location?

We understand that some users have legal (or other) requirements to fulfill. On a per user/organisation basis we can ensure that your service is hosted in particular geographical locations. Please contact our support team to arrange this.

Privacy Policy

We enjoy communicating with our customers, yet also strictly value your privacy! Our full Privacy Policy explains it all in detail.

Censum minimum requirements

The minimum requirements to run Censum are:

  • Any operating system that can run Java (Linux, MS Windows, Mac OS X, Unix etc)
  • OpenJDK or Sun/Oracle JDK 1.6.0_10+

We recommend running the very latest version of OpenJDK or Sun/Oracle’s JDK.

The flags you need to set in order for Censum to make the most accurate analysis are:

  • -Xloggc:<path to GC log>
  • -XX:+PrintGCDetails
  • -XX:+PrintTenuringDistribution

e.g. java -Xloggc:./logs/gc.log -XX:+PrintGCDetails -XX:+PrintTenuringDistribution -jar foobar.jar

How do I join the Friends of jClarity Community?

Our amazing Friends of jClarity community is full of Java performance tuning experts.

Sign up today!

Can I book in a free demo and/or consultation?

Yes! Just making a booking through our consultations page.