[xwiki-devs] Fwd: YourKit Java Profiler 12 released

From: YourKit Information Service &lt;info(a)yourkit.com&gt; Subject: YourKit Java Profiler 12 released Date: December 14, 2012 11:50:49 AM GMT+01:00 To: vincent(a)massol.net Greetings, We are glad to announce immediate availability of YourKit Java Profiler 12 released on December 3, 2012. It can be downloaded at http://www.yourkit.com/download/ MOST NOTABLE CHANGES AND NEW FEATURES: ====================================== NEW PLATFORMS SUPPORTED: - Linux on ARM - Linux on PPC CPU PROFILING: - Tracing overhead significantly reduced: profiled applications run up to 10%-50% faster than with the previous profiler version, due to new adaptive tracing mode and optimizations - Tracing accuracy increased - Reworked tracing and sampling settings MEMORY PROFILING: - New feature: "Class tree" view which is similar to "Class list", but shows classes grouped by package - New feature: memory views such as Class list allow selection of multiple rows - "Duplicate strings" inspection: the results are shown under a new grouping root node which presents the total waste in all the duplicate strings - Optimization: snapshots with big primitive arrays are opened faster - Optimization: performance of "Incoming References" view has been dramatically improved - Improved calculation of exact retained size in "Class list" and similar views: more items are processed per click if calculation speed allows - Improvement: available CPU cores are used for parallel computations in: - Class list - Class tree - Generations - Reachability scopes - Class loaders - Web applications - Object ages - Improvement: "Calculate exact retained sizes" action uses available CPU cores to perform calculation in parallel - Optimization: allocation recording overhead has been reduced for multithreaded applications: code being profiled runs up to 30% faster when each 10th object is recorded (the default setting), and up to 70% faster when each 100th object is recorded, comparing with the previous version - Improvement: web application context path (URL) is now shown in addition to the name - Web applications: added support of Jetty (versions 6, 7, 8) - Class instance count telemetry: scalability improved TELEMETRY: - CPU usage telemetry: kernel CPU time is shown as a separate curve, in addition to the main user + kernel CPU time graph - Graph rendering has been optimized, making UI much more responsive, especially when using bigger scales PROBES: - New feature: ability to clear tables. Get rid of older events you are not interested in anymore, or give space for new events if the table capacity limit has been reached. - "Probes" tab layout has been changed to gives more vertical space for browsing event lists, and make the UI more consistent - Class loading probe can be optionally disabled IDE INTEGRATION: - Eclipse, IntelliJ IDEA, NetBeans 7.0 and newer plugin automatically detects 32-bit and 64-bit JVMs, instead of relying on user input - Eclipse: Maven run configurations supported in Eclipse 3.7 and newer - IntelliJ IDEA 12 supported - NetBeans 7.3 supported J2EE INTEGRATION: - J2EE integration wizard: added Jetty 6 and newer support USER INTERFACE: - Improvement: the left vertical tab group avoids scroller if many tabs are opened - Added an quick way to switch between applying and not applying filters in UI - Added support of high-contrast color schemes - Call tree and back traces views: added popup menu item to expand selected node down to 5 levels, as a supplement to the existing item which expands the node fully MISCELLANEOUS: - Export with command line: class list is exported for performance snapshots too (as seen in Memory tab | Class list) - Agent: log file name now contains the session name to better separate logs from different applications - Agent: added an option to store logs from several runs of the same application in a series of log files named <session name>.<running number>.log This mode can be useful when profiling applications such as servers, when having a united log is better than having a separate log for each server start. - Agent: Groovy 2.0 supported - Other bug fixes and improvements See complete list of changes at http://www.yourkit.com/changes/ Kindest regards, YourKit Team ____________________________________________________________ If you would not like to receive any more information about YourKit Java Profiler, simply send an e-mail to info(a)yourkit.com with the subject line "unsubscribe".