Arun Kejariwal, from Twitter, talked at Velocity Conf London last month about forecasting algorithms used at Twitter to proactively predict system resource needs as well as business metrics such as number of users or tweets. Given the dynamic nature of their data stream, they found that a refined ARIMA model works well once data is cleansed, including removal of outliers.
On each day of the 3-day conference at the inviting environs offered at the Hyatt there was a jam-packed schedule of speakers, exhibits and activities that made for some difficult decisions as to which tracks and what happening to attend.
Augmenting the roster of tribulations haranguing Obamacare and the healthcare.gov website comes a technical deep-dive performed by leading performance monitoring organization AppDynamics that paints a picture of a sophomoric development initiative used to build that site.
There is so much to learn about the latest Mobile Backend as a Service provider AnyPresence's 5.0 platform geared for the enterprise that this second post was needed. Co-founder Rich Mendis provides further insight for InfoQ readers…
Mobile Backend as a Service provider AnyPresence continues to hone their chops. Launching the fifth update to their self-titled platform geared for the enterprise. Co-founder Rich Mendis provides some insights for InfoQ readers…
Since the Java 7 Update 40 release, Mission Control and Flight Recorder are shipped with the JDK. Mission Control is the starting place for monitoring, management and troubleshooting, while Flight Recorder is the facility to collect and evaluate profiling data. Both tools have been available for JRockit and are now finally ported to HotSpot.
London-based start-up jClarity announces the general availability of their flagship product for locating Java performance problems in both Cloud and Enterprise environments.
In a deep dive on performance, Eric Brumer explained why memory is often the most critical component. And while this session was on C++ development, much of what he said is applicable to managed code as well.
The three Pillars of Performance, Fast, Fluid, and Efficient, have been the common theme at the performance sessions this year. In the session XAML Performance Fundamentals we see ways to detect and solve problems that prevent us from achieving these pillars.
Making an application “fast” isn’t a real goal because it can’t be measured. An application may seem fast at first, but as performance starts to slip developers often don’t notice it. But this can be fixed by using a vocabulary that describes application performance in terms of concrete, measurable terms.
CA Technologies’ Application Performance Management 9.5 adds the ability to detect and analyze unusual performance metric patterns in near real time. This can be used to detect the beginnings of a denial of service attack, failing hardware, or a rouge application.
LeanSentry, formerly Sentinel has been updated with support for smart alerts, error highlighting, enhanced dashboard, classic ASP support in addition to several diagnostics features.
While a cottage industry has grown around providing services to optimize cloud usage and costs, large cloud providers themselves are beginning to promote their own optimization offerings. Microsoft recently purchased a cloud performance management company and made its product free to customers. Competitor AWS is aggressively promoting their own “Trusted Advisor” program with a free trial period.
In his new blog post Hortonworks Vice President of Corporate Strategy Shaun Connolly discusses the importance of Apache Ambari incubation project and the main milestones achieved by the project in 2012: simplified cluster provisioning, pre-configured key operational metrics, job execution visualization, a RESTful API and an intuitive UI.
Facebook has announced using HHVM, a HipHop VM with JIT compilation, in production, a solution that has unified their development and deployment environments, providing significant performance gains for developers.
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