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From: Josef W. <Jos...@gm...> - 2013-07-24 09:39:14
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Hi Emilio, Am 23.07.2013 20:18, schrieb Emilio Coppa: > We're developing a new Valgrind tool called aprof, a performance > profiler designed to help developers discover asymptotic performance > bottlenecks in a program. that's interesting. As I understand, your tool makes it possible to predict the runtime of function calls. I wonder if this could be used for scheduling decisions, e.g. if a function call is the body of an OpenMP for loop, to get better dynamic scheduling decisions for improved load balancing. Josef > The tool automatically generates, for each executed procedure, a 2D > chart that relates performance to input size, yielding clues to the > "big Oh" of the underlying algorithm. Charts that analyze the input > workloads are also generated, among many others. > > The tool and a profile visualizer have been brewing for some time and > we now have a first stable version. For the time being, we're keeping > them at: > > https://code.google.com/p/aprof > > The ideas behind aprof are described in a PLDI 2012 paper: > http://aprof.googlecode.com/files/pldi055-coppa.pdf (slides: > http://aprof.googlecode.com/files/aprof-PLDI.pdf). > > The function tracing infrastructure is essentially based on Callgrind > (many thanks to Joseph Weidendorfer for his invaluable help). > > Any comments/suggestions from you veterans would be greatly appreciated. > > Regards, > Emilio > > ------------------------------------------------------------------------------ > See everything from the browser to the database with AppDynamics > Get end-to-end visibility with application monitoring from AppDynamics > Isolate bottlenecks and diagnose root cause in seconds. > Start your free trial of AppDynamics Pro today! > http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk > _______________________________________________ > Valgrind-developers mailing list > Val...@li... > https://lists.sourceforge.net/lists/listinfo/valgrind-developers > |