InfoQ Homepage Performance Content on InfoQ
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YourKit Released the 2013 Version of its Profilers
For the recent 2013 version release of their Java Profiler, YourKit focused on improving its high level data collection features. The intention of the so called J2EE high level profiling is to get insight into the logical processing, rather than just providing timing information.
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What’s New for Developers in Android 4.4 KitKat
Google has released Android 4.4 (KitKat) featuring: lower memory footprint, immersive mode, translucent styles, screen printing, several frameworks – printing, storage, transitions-, Chromium WebView.
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Load Impact Adds Server-Side Metrics Collection to Cloud-Based Load Testing Tool
Load Impact – a leading SaaS performance testing provider based in Sweden – added a new capability that gives developers a more complete picture of their performance tests. Most cloud-based load testing tools only measure web application responses, but the new Server Metrics agent from Load Impact provide insight into what’s happening on the target servers themselves.
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JRuby 9K Expected in 2014 Ready for Production
Charles Nutter, one of the lead developers of JRuby, announced the release of version 9000 (9K) in 2014. The new release targets the same feature set as Ruby MRI 2.0 and possibly 2.1 as well. Better performance, concurrency support and overall availability and portability provided by the use of the JVM can make this version suitable for production systems.
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Performance Gurus Release jClarity Flagship Performance Monitoring Tool
London-based start-up jClarity announces the general availability of their flagship product for locating Java performance problems in both Cloud and Enterprise environments.
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The Current and Future Performance of the Mobile Web
In a substantial, well-researched blog article, Drew Crawford lays out all the reasons why he believes mobile web applications are slow today and why he does not expect this dramatically improve in the near feature.
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Memory and Native Code Performance
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.
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High Performance Immutable Arrays in .NET
In the newest drop of Immutable Collections for .NET we get ImmutableArray<T>, a faster alternative to ImmutableList<T> in read-only scenarios. Also, Jon Skeet offers some interesting performance trivia for arrays on the CLR.
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Dart Has Entered Beta with Faster VM, Editor and dart2js
20 months after the initial announcement of Dart, the language and its associated VM have entered beta with milestone M5. There are many small improvements in the current release, the most important ones being related to the Editor, VM, and dart2js.
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Latest Dart VM Beats JVM in DeltaBlue Benchmark
Shortly after Dart2js outperformed hand-written JavaScript, the latest Dart VM now beats JVM 7 64-bit Server, and other versions, in the DeltaBlue benchmark.
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NGINX 1.4 News: SPDY and PageSpeed
NGINX 1.4 comes with experimental support for SPDY, WebSocket proxying, and gunzip support, while Google enters beta with PageSpeed for NGINX.
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Detecting Abnormal Traffic in Real Time with APM 9.5
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.
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The Netflix API Optimization Story
The Netflix API optimization story is an interesting journey from a generic one-size-fits-all static REST API architecture to a more dynamic architecture that lends power to the client team to define and deploy their custom service endpoints. InfoQ spoke to Ben Christensen regarding this client adapter layer as well as the services layer redesign.
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How Alibaba Catered To $3 Billion Sales In A Day
Chinese Ecommerce Giant, Alibaba, recently managed to sell $3 billion worth of product in a single 24 hour period. InfoQ got a chance to ask a few questions to Zhuang Zhuoran and Youtan, architects from Tmall and Taobao, about the challenges of handling such loads and how they meet them.
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Facebook Now Uses HHVM/JIT both in Development and Production
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.