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Where script.rb is the program you want to profile.ДЇor a full list of options, see RubyProf::CmdДocumentation or execute the following command: ruby-prof -h Convenience API Requires no modifications to your program. The easiest way to use ruby-prof is via the command line, which That can cause ruby-prof to return incorrect results.

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If youДЄre running Windows, then you should install the Windows specific gem Installed so the extension can be built when it is installed. If you are running Linux or Unix you'll need to have a C compiler The easiest way to install ruby-prof is by using Ruby Gems. Gem (although ruby-prof provides similar information). If you are just interested in memory usage, you may also want to Excellent choices include stackprof or rbspy. Sampling profiler will be a better choice. To determine why a program running in production is slow or hung, a Most of the time, these two caveats are acceptable. Using ruby-prof will cause your program to run slower (see To use ruby-prof you generally need to include a few lines ofД®xtra code in your program (although see command line usage) Since ruby-prof is built using ruby's C tracepointДЄpi, it knows a lot about your program. Think you know almost always turns out to be wrong. Often times the results will be surprising - when profiling what you Large number of objects or allocate objects with high memory usage. It can help you track down methods that are either slow, allocate a Ruby-prof is helpful if your program is slow and you don't know why. Threads - supports profiling multiple threads simultaneously Reports - ruby-prof can generate a variety of text and Process time, object allocations and memory usage Measurement Modes - ruby-prof can measure program wall time, Speed - it is a C extension and therefore many times faster than With these features, we can make a ISeq (bytecode) pre-compilation system.Ruby-prof is a profiler for MRI Ruby. load_from_binary are introduced as experimental feature.

RubyVM::InstructionSequence#to_binary and.

The did_you_mean gem shows the candidates on the NameError and NoMethodError to ease debugging. Note that this behaves as try! of Active Support, which specially handle only nil.

A safe navigation operator (so-called lonely operator) &., which already exists in C#, Groovy, and Swift, is introduced to ease nil handling as obj&.foo.

Additionally for debugging, you can get where the object is created on 'can't modify frozen String' error by -debug=frozen-string-literal command line option. Ruby 2.3 introduces a new magic comment and command line option to freeze all string literals in the source files. With Ruby 2.1, 'str'.freeze has been optimized to reduce object allocation.

A Frozen String Literal Pragma is introduced.

Object-oriented language Programming language Ruby development Programming Object-oriented Language Development It is compatible with both 32-bit and 64-bit computer platforms.

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Ruby is a cross-platform software that can be successfully used on all GNU/Linux distributions, as well as on any UNIX-like operating system, including Mac OS X, BeOS, OS/2 and Microsoft Windows. Supported on GNU/Linux, Windows, Mac OS X, BeOS and OS/2 Then, run the вЂmakeвЂ™ command to compile it and the вЂsudo make installвЂ™ command to install it. Run the вЂ./configureвЂ™ command to configure the project (you can use the вЂ./configure -helpвЂ™ command to view available options for optimizing Ruby for a specific hardware architecture).

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Simply download it and save it on your Home directory, extract the archive and navigate to the location of the extracted archive files in a terminal emulator app (e.g.

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Use the built-in Software Center app to install it.ДЄs an alternative, the latest version can be installed using the source package, which is distributed for free on Softpedia. Installing the Ruby programming language on a GNU/Linux operating system is a very easy task, as the package is available for download on all major distributions, directly from their main software repositories. Key features include a simple syntax inspired by Ada and Eiffel, operating system independent threading, exception handling capabilities for handling errors, numerous operators, a pure and complete object oriented language, as well as support for adding methods to a class.ДЄdditionally, Ruby features a single inheritance only, true closures, blocks in its syntax, a true mark-and-sweep garbage collector, support for writing C extensions, integers, support for loading extension libraries dynamically, and it doesnвЂ™t need variable declarations. Ruby is a multiplatform, freely distributed, feature rich and open source command-line software that has been designed from the ground up to provide a powerful programming language for developers who want to build application in Ruby.