Bringing performance to the real Cloud

London startup of the week: JClarity

Chris Mayer

Continuing our new series, we chat to jClarity’s CEO Ben Evans about their nine month-old startup devoted to helping Java technologists get the performance tools they deserve.

Each week, we’ll be featuring the most exciting and
innovative startups in JAXenter’s hometown of London. To nominate
startups to be featured on the site, email

Week two and we had these guys in mind from the start with this
feature. Playing a key role within the Java Community Process and
helping run the London Java Community, the attention has turned to
the dark art of Java performance tuning for The Well-Grounded Java
Developer authors Ben Evans and
Martijn Verburg.

Alongside Java performance guru Kirk Pepperdine and their team of notable Java
experts, jClarity launched in
December 2012 bringing with it a fresh new take on analytics in the
Cloud. We talked to their CEO Ben about how their company is
tackling some of Java’s sticking points (performance & garbage
collection) with some nifty tools.


What’s your elevator

Java/JVM performance tools that tell you what the
problem is & how to fix it. A performance expert in a software
tool, so your developers and ops people don’t need to be
performance specialists. End result: Your application or site
recovers from outages faster, and your customers don’t start

How long has the company been

Nine months – in that time we went from company
formation to initial launch.

How many staff are there, and what do they

CEO / BizDev, CTO, 2 developers, Chief Scientist
/ Research.

Where are your offices based, and what are
they like inside? 

We have a dedicated suite at Shoreditch Works – lots
of white walls, natural light, good coffee. The private suite is a
perfect balance for us – we get space where we can really focus,
but still feel plugged in to the Shoreditch Works community &
part of something really special.

What technologies are you working with
(client and server side)? 

HTML5 & JavaScript for the front-end, Java &
x64 assembler is the server side, Mongo for some data storage
stuff, Chef for devops, Github for most SDLC lifecycle tasks. Our
release cycle is about once a month for the product, with minor
bugfixes being deployed on an as-need basis.

What are the company’s plans for the

Our tools in the hands of developers & ops folk
that need them. Reducing the stress levels of our fellow
technologists. Building our piece of the “real Cloud”. Keeping up
the intensity & building tools that raise the standard of the

What are your three top tips for wannabe

1.) Cashflow & cost control because they’re the
lifeblood of any small business. Watch the incoming cashflow
carefully, don’t be afraid to spend money if you need to, but
always know exactly what you’re spending and why. 

2.) Integrity because: “This is a handshake &
reputation business – act like it.” – Kirk Wylie, (CEO

3.) Determination because there will be some dark
days & as an entrepreneur you have to be the one to push
through them & help your team to do likewise.

Learn more about jClarity and their tools
and jMSR)

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