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May 09 2010
Circonus - Performance Monitoring
By OmniTICirconus - Performance Monitoring
By OmniTIApril 02 2010
pgsniff - Dump info about PostgreSQL queries as they happen
This tool will analyze either live packet streams or post-mortem packet dumps to extract PostgreSQL session information. It will track the client<->server communication and reveal information about client requests (queries, prepares, etc.) and various metadata and statistics.December 12 2009
Speed Tracer - Get insight into the performance of your web applications
Speed Tracer is a tool to help you identify and fix performance problems in your web applications. It visualizes metrics that are taken from low level instrumentation points inside of the browser and analyzes them as your application runs. Speed Tracer is available as a Chrome extension and works on all platforms where extensions are currently supported (Windows and Linux).December 05 2009
November 29 2009
dynaTrace AJAX Edition - Deep Tracing of Internet Explorer
Full tracing analysis of Internet Explorer 6-8 (including JavaScript, rendering, and network traffic)November 22 2009
Technologies for Data-Intensive Computing
Slides from presentation by Andreas Bechtolsheim, Sun Microsystems IncOctober 31 2009
10 Years of Virtual Machine Performance (Semi) Demystified
fascinating history of virtualisation from someone who worked for VMware. "Since 2005, VMware and Xen have gradually reduced the performance overheads of virtualization, aided by the Moore’s law doubling in transistor count, which inexorably shrinks overheads over time. AMD’s Rapid Virtualization Indexing (RVI - 2007) and Intel’s Extended Page Tables (EPT - 2009) substantially improved performance for a class of recalcitrant workloads by offloading the mapping of machine-level pages to Guest OS “physical” memory pages, from software to silicon. In the case of operations that stress the MMU—like an Apache compile with lots of short lived processes and intensive memory access—performance doubled with RVI/EPT. (Xen showed similar challenges prior to RVI/EPT on compilation benchmarks.)"September 06 2009
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