JStress Free and open source performance profiling harness
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write execute profiler execute task write task performance profilder

JStress Description

Free and open source performance profiling harness JStress is a free and open source, lightweight and very extensible performance harness for executing both simple and complex tasks while efficiently accumulating relevant metrics. Tasks can be written that will exercise code in the local process space or on any remote system. And these tasks can be executed using various attack or run strategies simulating different types of loads on the system.The results of these tests can be plotted or imported into various statistics tools.JStress is intended to be run from a remote shell, so it has no GUI component. This allows you to execute JStress on the same network as your target application improving the chance of saturating it with requests so that you can render a more accurate profile. You may also concurrently run multiple instances of JStress on multiple machines. When you analyze the results, all you need to do is merge the individual logs (and likely sort them by time stamp). Note only one of these instances needs to enable the incremental stepping of the arrival rate. The others can provide a constant arrival rate (the sum being the minimum rate you wish to measure). NOTE: JStress is licensed and distributed under the terms of the IBM Public License. Requirements: · Java 1.6 or later What's New in This Release: · lots of refactoring, dead code removal, and library upgrades. · added R helper, augmenting gnuplot scripts. · this version is mostly backwards compatible.

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