galois, inc 2010
TRANSCRIPT
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The Rubinius Virtual Machine
Brian Fordbrixen @ {twitter IRC gmail}
presented at Galois, Inc 30 Nov 10
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Rubinius runs Ruby
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Methods
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Methods
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Methods
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Blocks
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Blocks
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Scopes
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Classes
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Classes
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Modules
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Modules
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Modules
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Singleton Classes
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Singleton Classes
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Expressions
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Rubinius History
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Sydneythread-safe MRI
prototype Bprototype S
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~4 yearsearly Git user
open commit policy
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virtual machinesgarbage collectorsbytecode compilersRuby core libraryprimitives systemsJIT compilersof RubySpecs
21.75
3122
tons
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Virtual Machine
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bootstrapping
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VM | OM
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object memoryontologymethods
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vm/ontology.cpp
vm/environment.cpp
vm/builtin/
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VM | OM
alpha.rb
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VM | OM
alpha.rb
bootstrap/
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kernel/bootstrap/array.rb
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VM | OM
alpha.rb
bootstrap/
platform/
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kernel/platform/posix.rb
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VM | OM
alpha.rb
bootstrap/
platform/
common/
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VM | OM
alpha.rb
bootstrap/
platform/
common/
delta/
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VM | OM
alpha.rb
bootstrap/
platform/
common/
delta/
loader.rb
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set pathsprocess optionsrun application
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VM | OM
alpha.rb
bootstrap/
platform/
common/
delta/
loader.rb
Ruby
C++
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interpreters
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vm/instructions.def
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vm/instructions.def
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vm/instructions.def
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vm/instructions.def
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vm/instructions.def
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vm/instructions.def
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vm/instructions.def
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String
Bytecode Compiler
File
AST SymbolicBytecode
CompiledMethod
CompiledFile
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lib/compiler/compiler.rb
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lib/compiler/ast/operators.rb
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spec/compiler/and_spec.rb
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field access
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kernel/bootstrap/array.rb
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vm/builtin/array.hpp
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primitives
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kernel/bootstrap/array.rb
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vm/builtin/array.hpp
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vm/gen/primitives_glue.gen.hpp
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Garbage Collector
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Large Object Space
Nursery
Young
Semi-Space
Mature
Immix
Generational
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Nursery
slab 1 slab 2
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auto-tunedlifetime
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Immix:A Mark-Region Garbage Collector
with Space Efficiency, Fast Collection, and Mutator
Performance
Blackburn, S. & McKinley, K.(PLDI 2008)
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C-API
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MRI native APIlegacy codepoor quality
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Inflated Headers
Flags
field 1
...
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Inflated Headers
TaggedPointer
field 1
...
Flags
handle
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JIT
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bytecode to LLVM IR
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programthreads
JITthreads
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vm/llvm/jit_visit.hpp
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uncommon_interpreter
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pure functions
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Custom Passesguard elimination
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rbx -Xjit.dump_code=NLLVM IR = 1
optimized IR = 2machine code = 4
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exceptions
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RubySpec
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array/index_spec.rb
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array/index_spec.rb
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integer/even_spec.rb
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file/open_spec.rb
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3521 files,15769 examples,
43797 expectations,0 failures, 0 errors
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Future Rubinius
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full concurrency(hydra branch)
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method store(image?)
lazy loading
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build system
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modularityswap core library
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LLVM metadatatype propagation
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LLVM metadatatype propagation
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runtime compilationwith clang
(Windows, C-ext)
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StrongRuby ?
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Androidmobile
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Web rubini.us
Github github.com/evanphx/rubinius
IRC #rubinius
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Thank you