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A look back: our company’s first 3 months and first 1000 user registrations
In the last days of January, the number of Plumbr users exceeded an important milestone - we now have more than 1,000 users! As we started offering Plumbr as a public beta in the beginning of November last year, we can say that „collecting“ the first 1,000 customers took us 3 months. Let's dive into the numbers (we are big fans of factual proof!), and elaborate on what we did to get here and what are we about to do next.
Filed under: Plumbr
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Leak detection improvement – Plumbr 1.0RC4 is available!
This announcement is dedicated to the next step in the product maturity. Fair amount of users have reported false alarms: they say that Plumbr is too sensitive and claims objects to be leaking even if those objects occupy less than 1% of heap. We have good news for you: based on the hundreds of samples of Java application object lifecycles we have gathered, the detection algorithm has been tweaked to be more „suspicious“, ie. it now avoids most of the false alerts by collecting some more evidence before announcing the verdict.
Filed under: Product Updates
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Solving OutOfMemoryError (part 5) – JDK Tools
In our last blog post on the "Solving OutOfMemoryError" series we looked at profilers and concluded that profiling alone doesn't help you solve memory leaks.Today we will talk about the command line tools that are bundled with the Oracle JDK and can be used to find memory leaks. The benefit of knowing the bundled tooling is obvious: they are available everywhere where Oracle's Java is installed, i.e. often also in these test and production environments where other fancy tools are either not installed.
Filed under: Memory Leaks
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Solving OutOfMemoryError (part 4) – memory profilers
Our past experience, which is supported by a quick search on Google and Stackoverflow, shows that the first set of tools people tend to jump to when solving memory problems in production is memory profilers. Among them, VisualVM, YourKit and JProbe seem to be the most popular. So lets see how those famous solutions perform through a case study.
Filed under: Memory Leaks
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How much should our product cost?
Until now we've been focusing on developing the software – we believe that a company without a superb solution is worth nothing. However, as we also have mortgages to pay, there rose the question of our product’s revenue stream. And hence the problem – what would be the revenue model of Plumbr and how much should it cost?
Filed under: Plumbr
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A new release is available – upgrade to 1.0RC3!
We are happy to announce Plumbr 1.0RC3 - a new release that greatly improves speed and leak detection accuracy, includes a demo application for fast demoing of Plumbr and fixes some smaller bugs. We are a big step closer to finally releasing the first official Plumbr 1.0, and perhaps also removing the BETA tag from our logo.
Filed under: Product Updates
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What does it cost to start a company?
Everyone and your mom is speaking about how easy and cheap it is to launch a company in 2011. We fell into that trap and launched one. This article describes our experience in the field - was it easy and/or was it cheap? Read on to find out - in the following 1600 words or so we will describe more or less chronologically the steps we took and how much these cost.
Filed under: Plumbr
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Let them talk
On our quest to solve every memory leak in the Java world we get in touch with many teams who struggle with performance issues of their applications. Every developer tries to solve these differently. Some begin with vmstat or top, others with a CPU profiler or a DB load monitoring tool. Many of them turn to different APM products, like CA APM, AppDynamics, dynaTrace, etc. However, if you properly ask the application, it will normally give you all the information you need for performance tuning. And you can get the info without relying on indirect metrics of the operating system or the JVM.
Filed under: Performance
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Announcing bugfix release 1.0RC2
First of all a big thanks to everyone who rushed in over the last days - the first public version of Plumbr turned out to be extremely popular! Thanks for keeping us up the days and nights, collecting feedback and improving the product. And the result is here - we just released Plumbr 1.0RC2. It slightly improves leak detection and the leak report, and fixes the bugs that have been discovered - and is a step closer to a generally approved 1.0! We encourage everyone to upgrade.
Filed under: Product Updates
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Put your fat Collections on a diet!
Java Collection API is one of the most used APIs in the Java world. It provides a convenient and pretty solid way to implement and use some every-day data structures. But are they suitable and efficient in all situations? In this article I will investigate one case from our own experience where Java Collection API turned out to be a huge waste of memory in a pretty trivial usage scenario.
Filed under: Memory Leaks