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Most MATLAB programs run in Octave, but some of the Octave programs may not run in MATLAB because, Octave allows some syntax that MATLAB does not.įor example, MATLAB supports single quotes only, but Octave supports both single and double quotes for defining strings.
GNU OCTAVE LFAT SOFTWARE
You may redistribute it and/or modify it under the terms of the GNU General Public License (GPL) as published by the Free Software Foundation. GNU Octave is also freely redistributable software. it has built-in math functions and libraries.it has built-in support for complex numbers.Octave has the following common features with MATLAB − It is also used for numerical computations. I have provided a Flat and Call-Graph AST's.GNU Octave is a high-level programming language like MATLAB and it is mostly compatible with MATLAB. This profiling-event-generator AST we need to put in place for the people to write profilers of their choice. Regular function-call return events, and.Once the profiling infrastructure is in place using the separate AST, then we can profile fine-grained events including So this is the missing-link in the profiler game. This however, does not affect the design of the profiler itself. Is a non-trivial task but that involves working on making the event hook mechanism delivery on function-call and return events. Making a AST type evaluator with the hooks for the interpreter
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Is required, as there will be a performance hit of about 2x compared to the non-profiling interpreter. What remains to be done is to write the hooks of the profilerįunction into a separate AST walker in the Octave interpreter,Īnd make the evaluation-AST changeable at runtime using I am posting the diffs against the files, and the 2 new files for The level of a event-based, call-graph profiler with access to Of the function calls (call-graph based profilers help here,įor compatibility with Matlab, it suffices to provide an API to reach Regular caveats of a flat-profiler in not knowing context Cannot handle exceptions in profiler gracefully.ģ.
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Cannot lookinto execution times of specific lines-of-codeĢ. There are following good points about the code,Ġ. Sophisticated or simple profiler based on the application. The JAVA's JVMPI (JVM Profiler Interface) which lets people build/use a I would personally prefer a 'event-based' profiler API like Many design decisions remain to be made, which I must leave it to betterĮxperienced. The python profiler ('import profiler')ĭoes something like this, and serves as a good template. >From this point, a simple call-graph profiler can also be implemented The API support touches the 4 files mentioned in the previous post. I have also added some elementary support for 'event-based' profiler ,įrom the Octave side, that notifies the routines for 'calls', and Time seconds seconds calls ms/call ms/call name Sample output of profile command testcase 'testprofile.m' (attached) $(Ruby-Install-Path)/lib/profiler.rb authored by 'Matz' (Yukihiro
GNU OCTAVE LFAT CODE
This code is a C++ rewrite of the Ruby's flat-profiler from Runtimes, and frequency of call to each function. Statistics of the cpu-time of the functions (only), self & total average I have implemented a rudimentary "flat-profiler" that can just give