Rubinius - Ruby Implemented with Ruby
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The document outlines Rubinius, a Ruby implementation created by Evan Phoenix starting in 2006, aimed at providing an alternative Ruby interpreter. It discusses its components, such as the virtual machine, garbage collector, and JIT compiler, along with features introduced in Rubinius 3.0 like debugging tools and heap dump interfaces for memory analysis. The document also highlights the importance of metrics in performance monitoring and the use of tools for debugging, profiling, and analyzing memory leaks.
Rubinius - Ruby Implemented with Ruby
- 1. Rubinius Ruby Implemented with Ruby
- 2. About us ● Graduated from COEP (IT) in 2014 ● Rails Girls Summer of Code, 2014 Interns ● http://teamrubiniusrgsoc14.blogspot.in/ ● @AkankshaHA, @sanakhan_libre
- 3. Agenda ● What is Rubinius? ● Components ● Flow of Ruby Code to Machine Code ● Implementation of basic methods ● Backtraces ● Various tools ● Heap Dump Interface ● Metrics ● New Features in Rubinius 3.0
- 4. ● An alternative implementation of Ruby interpreter ● Started in 2006 by Evan Phoenix with an objective to implement Ruby in Ruby What is Rubinius?
- 5. Components ● Kernel (Ruby) Definition of built-in classes (rubinius/kernel/common) ● Virtual Machine (C++) GC JIT Compiler (LLVM) Additional code for built-in classes (rubinius/vm)
- 6. Source: Ruby Under a Microscope, Pat Shaughnessy
- 7. Ruby to Machine Code Parsing (Melbourne) Compilation (Ruby Code) JIT Compilation (C++) Machine Code Ruby Interpretation (VM) AST Nodes Rubinius Instructions (Bytecode) LLVM Instructions
- 8. Digging into Rubinius Code
- 11. String#allocate
- 12. Array#shift
- 16. Backtraces in Rubinius vs MRI
- 19. Rubinius Tools ● Debugger ● Profiler ● Heap Dump Interface ● Metrics ● And more.. ● Tools in Rubinius 3.0 http://rubini.us/2014/11/13/rubinius-3-0-part-4-the-system-and-tools
- 20. The Rubinius Heap Dump Interface
- 21. What are heap dumps used for? ● Heap dumps is one of the most important analysis tools. ● Analyzing memory footprint of applications. ● Detecting Memory Leaks ● Identifying root cause of Memory Leaks
- 22. What is a heap dump? Heap dump is a snapshot of memory of a particular process running at that instant of time.
- 23. Obtaining Binary Heap Dump ● Rubinius::VM.dump_heap('/path/to/the/file.dump') Or ● Via the Query Agent
- 24. A Sample Leaky Program
- 26. Diff of two heap snapshots
- 33. Rubinius Metrics ● Accessible using Rubinius::Metrics.data ● Directly emitted to StatsD ● ● Metrics - StatsD - InfluxDB - Grafana ● http://rubini.us/2014/12/10/rubinius-metrics-meets-influxdb/
- 34. Metrics in Grafana dashboard
- 36. New features in Rubinius 3.0 ● JIT compiler code to be written in Ruby, JIT Planner ● CodeDB ● Rubinius::Console
- 37. Questions?