InvokeDynamic: Your API for HotSpot

Transcript

1. InvokeDynamic Your API for HotSpot Tony Arcieri Boundary October 11th, 2012
2. Who am I?
3. Who am I?
4. Our story begins...
5. Java was slow Once upon a time...
6. Anamorphic
7. Anamorphic StrongTalk
8. •Optional static typing •Modern garbage collector •JIT compiler Anamorphic StrongTalk
9. Anamorphic StrongTalk Sun Microsystems Java
10. Anamorphic StrongTalk Sun Microsystems Java Stolen legacy!
11. Anamorphic StrongTalk Sun Microsystems Java Stolen legacy!
12. Anamorphic StrongTalk Sun Microsystems Java Stolen legacy!
14. HotSpot
15. JIT
16. Compile When Code Runs Just-In-Time Compiler
17. JIT Spectrum
18. JIT Spectrum Eager Lazy
19. JIT Spectrum Eager Lazy CLR HiPE V8 HotSpot
20. JIT Spectrum Eager Lazy CLR HiPE V8 HotSpot Static Optimizations Runtime Optimizations
21. •C1: Client Compiler •C2: Server Compiler HotSpot
22. •C1: Client Compiler •C2: Server Compiler •-XX:+TieredCompilation HotSpot
23. Mixed Mode Profiling JIT
24. Start by interpreting JVM “emulates” bytecodes in userspace BYTECODE
25. Locate “hot spots” BYTECODE Using runtime profiling information
26. Generate machine code Compile JVM bytecode to native ISA BYTECODE 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 after 10,000 calls
27. •Inlining methods •Unrolling loops •Eliding locks •Eliminating dead code •Escape analysis Optimizations
28. •Inlining methods •Unrolling loops •Eliding locks •Eliminating dead code •Escape analysis Optimizations
29. Inlining Combine and optimize across calls Method 1 CALL Method 2
30. Inlining Combine and optimize across calls Method 1 Method 2
31. Call Sites Where the magic happens... CALL
32. Call Sites •Profile data •Monomorphic inline cache •Polymorphic inline cache
33. “Shapes”
34. Monomorphic Only one type seen at call site CALL A
35. Bimorphic Two types seen at call site CALL A B
36. Polymorphic Many types seen at call site CALL A C B
37. Megamorphic Too many types seen at call site CALL A C B D E F G
38. •Measure invocations and branches •Make an educated guess •Inline the code in question •Back out if we guessed wrong Inlining
39. •Check invariants at a “safe point” •Did we guess wrong? •Revert optimization and try again Deopt
40. JVM Limitations
41. Made for Java •InvokeVirtual •InvokeInterface •InvokeStatic •InvokeSpecial
42. Non-Java call sites are opaque to HotSpot Can’t be inlined Method 1 CALL Method 2
43. Teach HotSpot? See through non-Java call sites Method 1 CALL Method 2
44. Inline just like Java Method 1 Method 2
45. What if it worked for any language?
46. Even Ruby?
47. InvokeDynamic
48. InDy
49. InDy •JSR-292: “Supporting Dynamically Typed Languages on the Java Platform” •Initial version shipped in Java 7 •Feeds directly into HotSpot in Java 8
50. New JVM instruction
51. java.lang.invoke
52. InvokeDynamic
53. InvokeDynamic
54. InvokeDynamic
55. “User defined data endpoint”
56. JVM Data Endpoints •Invoke operations •Array element access •Property lookup •And more!
57. InDy Use Cases •Custom invocation •“Constant” values (e.g. globals, language intrinsics) •Scoped values (e.g. instance variables)
58. InDy How does it work?
59. Pieces of InDy •Bootstrap methods •Call sites •Method handles •Switch points
60. Bootstrap method
61. Bootstrap method Wire up the call site
62. Bootstrap method Your own code!
63. Bootstrap Method •Called the first time each InDy call site is used •Find MethodHandle to dispatch •Return CallSite object
64. Call Site Replaces InDy instruction in bytecode
65. Call Site Holds onto a chain of MethodHandles
66. java.lang.invoke.CallSite •ConstantCallSite: unchangeable •VolatileCallSite: seen coherently across cores •MutableCallSite: may appear different across cores
67. Any of those can be subclassed
68. java.lang.invoke.MethodHandle •Directly executable reference to a Java method (i.e. fast-as-Java) •Inlineable by HotSpot •MethodHandles all the way down
69. Methods are first- class objects
70. Project Lambda Lambdas for the JVM Coming in Java 8! (Summer 2013)
71. Guarded Invocation
72. MethodHandle.guardWithTest( ! MethodHandle test, ! MethodHandle target, ! MethodHandle fallback ) Guarded Invocation
73. fallback can rebind the call site Handle new types as they’re seen
74. SwitchPoints
75. SwitchPoint.guardWithTest( ! MethodHandle target, ! MethodHandle fallback ) SwitchPoint.invalidateAll( ! SwitchPoint[] ) SwitchPoints
76. java.lang.invoke.SwitchPoint •Publish events across threads (e.g. blow caches when classes change) •Only event is valid -> invalid •Hooks directly into the HotSpot deoptimizer (no additional branches)
77. Putting it together
78. CallSite: where the call is taking place Invocation example
79. CallSite: where the call is taking place SwitchPoint: did the class change? Invocation example
80. CallSite: where the call is taking place SwitchPoint: did the class change? GuardWithTest: is this the type we bound? Invocation example
81. CallSite: where the call is taking place SwitchPoint: did the class change? GuardWithTest: is this the type we bound? Target: invoke the target method Invocation example
82. CallSite: where the call is taking place SwitchPoint: did the class change? GuardWithTest: is this the type we bound? Target: invoke the target method Rebind: lookup new method and rebuild call site - or - Invocation example
83. CallSite: where the call is taking place SwitchPoint: did the class change? GuardWithTest: is this the type we bound? Target: invoke the target method Rebind: lookup new method and rebuild call site - or - - or - Rebind: lookup potentially changed methods Invocation example
84. InDy in the real world
85. Is it good? To the assembly!
86. java -XX:+UnlockDiagnosticVMOptions -XX:+PrintAssembly Enabling ASM output
87. def foo; 1; end def invoker; foo; end i = 0 while i < 10000 invoker i+=1 end Contrived Ruby code
88. 0x00000001060a1be0: mov %eax,-0x14000(%rsp) 0x00000001060a1be7: push %rbp 0x00000001060a1be8: sub $0x30,%rsp ;*synchronization entry ; - ruby.__dash_e__::method__1$RUBY$invoker@-1 (line 1) 0x00000001060a1bec: mov 0x8(%rcx),%r10d ; implicit exception: dispatches to 0x00000001060a1c55 0x00000001060a1bf0: cmp $0xfb7aedc9,%r10d ; {oop('org/jruby/RubyObject')} 0x00000001060a1bf7: jne 0x00000001060a1c39 0x00000001060a1bf9: mov %rcx,%r10 ;*checkcast ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@2 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1bfc: mov 0x10(%r10),%ebp ;*getfield metaClass ; - org.jruby.RubyBasicObject::getMetaClass@1 (line 520) ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@5 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c00: cmp $0xfed77602,%ebp ; {oop(a 'org/jruby/MetaClass')} 0x00000001060a1c06: jne 0x00000001060a1c1e ;*if_acmpne ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@8 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c08: movabs $0x7f6bf4bb0,%rax ;*areturn ; - ruby.__dash_e__::method__0$RUBY$foo@6 (line 1) ; - java.lang.invoke.MethodHandle::invokeExact@6 ; - java.lang.invoke.MethodHandle::invokeExact@31 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) ; {oop(a 'org/jruby/RubyFixnum')} 0x00000001060a1c12: add $0x30,%rsp 0x00000001060a1c16: pop %rbp 0x00000001060a1c17: test %eax,-0xec3c1d(%rip) # 0x00000001051de000 ; {poll_return} 0x00000001060a1c1d: retq
89. 0x00000001060a1be0: mov %eax,-0x14000(%rsp) 0x00000001060a1be7: push %rbp 0x00000001060a1be8: sub $0x30,%rsp ;*synchronization entry ; - ruby.__dash_e__::method__1$RUBY$invoker@-1 (line 1) 0x00000001060a1bec: mov 0x8(%rcx),%r10d ; implicit exception: dispatches to 0x00000001060a1c55 0x00000001060a1bf0: cmp $0xfb7aedc9,%r10d ; {oop('org/jruby/RubyObject')} 0x00000001060a1bf7: jne 0x00000001060a1c39 0x00000001060a1bf9: mov %rcx,%r10 ;*checkcast ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@2 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1bfc: mov 0x10(%r10),%ebp ;*getfield metaClass ; - org.jruby.RubyBasicObject::getMetaClass@1 (line 520) ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@5 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c00: cmp $0xfed77602,%ebp ; {oop(a 'org/jruby/MetaClass')} 0x00000001060a1c06: jne 0x00000001060a1c1e ;*if_acmpne ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@8 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c08: movabs $0x7f6bf4bb0,%rax ;*areturn ; - ruby.__dash_e__::method__0$RUBY$foo@6 (line 1) ; - java.lang.invoke.MethodHandle::invokeExact@6 ; - java.lang.invoke.MethodHandle::invokeExact@31 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) ; {oop(a 'org/jruby/RubyFixnum')} 0x00000001060a1c12: add $0x30,%rsp 0x00000001060a1c16: pop %rbp 0x00000001060a1c17: test %eax,-0xec3c1d(%rip) # 0x00000001051de000 ; {poll_return} 0x00000001060a1c1d: retq Stack juggling
90. 0x00000001060a1be0: mov %eax,-0x14000(%rsp) 0x00000001060a1be7: push %rbp 0x00000001060a1be8: sub $0x30,%rsp ;*synchronization entry ; - ruby.__dash_e__::method__1$RUBY$invoker@-1 (line 1) 0x00000001060a1bec: mov 0x8(%rcx),%r10d ; implicit exception: dispatches to 0x00000001060a1c55 0x00000001060a1bf0: cmp $0xfb7aedc9,%r10d ; {oop('org/jruby/RubyObject')} 0x00000001060a1bf7: jne 0x00000001060a1c39 0x00000001060a1bf9: mov %rcx,%r10 ;*checkcast ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@2 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1bfc: mov 0x10(%r10),%ebp ;*getfield metaClass ; - org.jruby.RubyBasicObject::getMetaClass@1 (line 520) ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@5 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c00: cmp $0xfed77602,%ebp ; {oop(a 'org/jruby/MetaClass')} 0x00000001060a1c06: jne 0x00000001060a1c1e ;*if_acmpne ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@8 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c08: movabs $0x7f6bf4bb0,%rax ;*areturn ; - ruby.__dash_e__::method__0$RUBY$foo@6 (line 1) ; - java.lang.invoke.MethodHandle::invokeExact@6 ; - java.lang.invoke.MethodHandle::invokeExact@31 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) ; {oop(a 'org/jruby/RubyFixnum')} 0x00000001060a1c12: add $0x30,%rsp 0x00000001060a1c16: pop %rbp 0x00000001060a1c17: test %eax,-0xec3c1d(%rip) # 0x00000001051de000 ; {poll_return} 0x00000001060a1c1d: retq Is “self” a Ruby object?
91. 0x00000001060a1be0: mov %eax,-0x14000(%rsp) 0x00000001060a1be7: push %rbp 0x00000001060a1be8: sub $0x30,%rsp ;*synchronization entry ; - ruby.__dash_e__::method__1$RUBY$invoker@-1 (line 1) 0x00000001060a1bec: mov 0x8(%rcx),%r10d ; implicit exception: dispatches to 0x00000001060a1c55 0x00000001060a1bf0: cmp $0xfb7aedc9,%r10d ; {oop('org/jruby/RubyObject')} 0x00000001060a1bf7: jne 0x00000001060a1c39 0x00000001060a1bf9: mov %rcx,%r10 ;*checkcast ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@2 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1bfc: mov 0x10(%r10),%ebp ;*getfield metaClass ; - org.jruby.RubyBasicObject::getMetaClass@1 (line 520) ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@5 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c00: cmp $0xfed77602,%ebp ; {oop(a 'org/jruby/MetaClass')} 0x00000001060a1c06: jne 0x00000001060a1c1e ;*if_acmpne ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@8 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c08: movabs $0x7f6bf4bb0,%rax ;*areturn ; - ruby.__dash_e__::method__0$RUBY$foo@6 (line 1) ; - java.lang.invoke.MethodHandle::invokeExact@6 ; - java.lang.invoke.MethodHandle::invokeExact@31 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) ; {oop(a 'org/jruby/RubyFixnum')} 0x00000001060a1c12: add $0x30,%rsp 0x00000001060a1c16: pop %rbp 0x00000001060a1c17: test %eax,-0xec3c1d(%rip) # 0x00000001051de000 ; {poll_return} 0x00000001060a1c1d: retq Same metaclass as before?
92. 0x00000001060a1be0: mov %eax,-0x14000(%rsp) 0x00000001060a1be7: push %rbp 0x00000001060a1be8: sub $0x30,%rsp ;*synchronization entry ; - ruby.__dash_e__::method__1$RUBY$invoker@-1 (line 1) 0x00000001060a1bec: mov 0x8(%rcx),%r10d ; implicit exception: dispatches to 0x00000001060a1c55 0x00000001060a1bf0: cmp $0xfb7aedc9,%r10d ; {oop('org/jruby/RubyObject')} 0x00000001060a1bf7: jne 0x00000001060a1c39 0x00000001060a1bf9: mov %rcx,%r10 ;*checkcast ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@2 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1bfc: mov 0x10(%r10),%ebp ;*getfield metaClass ; - org.jruby.RubyBasicObject::getMetaClass@1 (line 520) ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@5 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c00: cmp $0xfed77602,%ebp ; {oop(a 'org/jruby/MetaClass')} 0x00000001060a1c06: jne 0x00000001060a1c1e ;*if_acmpne ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@8 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c08: movabs $0x7f6bf4bb0,%rax ;*areturn ; - ruby.__dash_e__::method__0$RUBY$foo@6 (line 1) ; - java.lang.invoke.MethodHandle::invokeExact@6 ; - java.lang.invoke.MethodHandle::invokeExact@31 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) ; {oop(a 'org/jruby/RubyFixnum')} 0x00000001060a1c12: add $0x30,%rsp 0x00000001060a1c16: pop %rbp 0x00000001060a1c17: test %eax,-0xec3c1d(%rip) # 0x00000001051de000 ; {poll_return} 0x00000001060a1c1d: retq Store Fixnum “1” for return
93. 0x00000001060a1be0: mov %eax,-0x14000(%rsp) 0x00000001060a1be7: push %rbp 0x00000001060a1be8: sub $0x30,%rsp ;*synchronization entry ; - ruby.__dash_e__::method__1$RUBY$invoker@-1 (line 1) 0x00000001060a1bec: mov 0x8(%rcx),%r10d ; implicit exception: dispatches to 0x00000001060a1c55 0x00000001060a1bf0: cmp $0xfb7aedc9,%r10d ; {oop('org/jruby/RubyObject')} 0x00000001060a1bf7: jne 0x00000001060a1c39 0x00000001060a1bf9: mov %rcx,%r10 ;*checkcast ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@2 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1bfc: mov 0x10(%r10),%ebp ;*getfield metaClass ; - org.jruby.RubyBasicObject::getMetaClass@1 (line 520) ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@5 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c00: cmp $0xfed77602,%ebp ; {oop(a 'org/jruby/MetaClass')} 0x00000001060a1c06: jne 0x00000001060a1c1e ;*if_acmpne ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@8 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c08: movabs $0x7f6bf4bb0,%rax ;*areturn ; - ruby.__dash_e__::method__0$RUBY$foo@6 (line 1) ; - java.lang.invoke.MethodHandle::invokeExact@6 ; - java.lang.invoke.MethodHandle::invokeExact@31 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) ; {oop(a 'org/jruby/RubyFixnum')} 0x00000001060a1c12: add $0x30,%rsp 0x00000001060a1c16: pop %rbp 0x00000001060a1c17: test %eax,-0xec3c1d(%rip) # 0x00000001051de000 ; {poll_return} 0x00000001060a1c1d: retq Note: inside the “foo” method
94. 0x00000001060a1be0: mov %eax,-0x14000(%rsp) 0x00000001060a1be7: push %rbp 0x00000001060a1be8: sub $0x30,%rsp ;*synchronization entry ; - ruby.__dash_e__::method__1$RUBY$invoker@-1 (line 1) 0x00000001060a1bec: mov 0x8(%rcx),%r10d ; implicit exception: dispatches to 0x00000001060a1c55 0x00000001060a1bf0: cmp $0xfb7aedc9,%r10d ; {oop('org/jruby/RubyObject')} 0x00000001060a1bf7: jne 0x00000001060a1c39 0x00000001060a1bf9: mov %rcx,%r10 ;*checkcast ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@2 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1bfc: mov 0x10(%r10),%ebp ;*getfield metaClass ; - org.jruby.RubyBasicObject::getMetaClass@1 (line 520) ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@5 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c00: cmp $0xfed77602,%ebp ; {oop(a 'org/jruby/MetaClass')} 0x00000001060a1c06: jne 0x00000001060a1c1e ;*if_acmpne ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@8 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c08: movabs $0x7f6bf4bb0,%rax ;*areturn ; - ruby.__dash_e__::method__0$RUBY$foo@6 (line 1) ; - java.lang.invoke.MethodHandle::invokeExact@6 ; - java.lang.invoke.MethodHandle::invokeExact@31 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) ; {oop(a 'org/jruby/RubyFixnum')} 0x00000001060a1c12: add $0x30,%rsp 0x00000001060a1c16: pop %rbp 0x00000001060a1c17: test %eax,-0xec3c1d(%rip) # 0x00000001051de000 ; {poll_return} 0x00000001060a1c1d: retq Stack juggling
95. 0x00000001060a1be0: mov %eax,-0x14000(%rsp) 0x00000001060a1be7: push %rbp 0x00000001060a1be8: sub $0x30,%rsp ;*synchronization entry ; - ruby.__dash_e__::method__1$RUBY$invoker@-1 (line 1) 0x00000001060a1bec: mov 0x8(%rcx),%r10d ; implicit exception: dispatches to 0x00000001060a1c55 0x00000001060a1bf0: cmp $0xfb7aedc9,%r10d ; {oop('org/jruby/RubyObject')} 0x00000001060a1bf7: jne 0x00000001060a1c39 0x00000001060a1bf9: mov %rcx,%r10 ;*checkcast ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@2 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1bfc: mov 0x10(%r10),%ebp ;*getfield metaClass ; - org.jruby.RubyBasicObject::getMetaClass@1 (line 520) ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@5 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c00: cmp $0xfed77602,%ebp ; {oop(a 'org/jruby/MetaClass')} 0x00000001060a1c06: jne 0x00000001060a1c1e ;*if_acmpne ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@8 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c08: movabs $0x7f6bf4bb0,%rax ;*areturn ; - ruby.__dash_e__::method__0$RUBY$foo@6 (line 1) ; - java.lang.invoke.MethodHandle::invokeExact@6 ; - java.lang.invoke.MethodHandle::invokeExact@31 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) ; {oop(a 'org/jruby/RubyFixnum')} 0x00000001060a1c12: add $0x30,%rsp 0x00000001060a1c16: pop %rbp 0x00000001060a1c17: test %eax,-0xec3c1d(%rip) # 0x00000001051de000 ; {poll_return} 0x00000001060a1c1d: retq Safe point check
96. 0x00000001060a1be0: mov %eax,-0x14000(%rsp) 0x00000001060a1be7: push %rbp 0x00000001060a1be8: sub $0x30,%rsp ;*synchronization entry ; - ruby.__dash_e__::method__1$RUBY$invoker@-1 (line 1) 0x00000001060a1bec: mov 0x8(%rcx),%r10d ; implicit exception: dispatches to 0x00000001060a1c55 0x00000001060a1bf0: cmp $0xfb7aedc9,%r10d ; {oop('org/jruby/RubyObject')} 0x00000001060a1bf7: jne 0x00000001060a1c39 0x00000001060a1bf9: mov %rcx,%r10 ;*checkcast ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@2 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1bfc: mov 0x10(%r10),%ebp ;*getfield metaClass ; - org.jruby.RubyBasicObject::getMetaClass@1 (line 520) ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@5 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c00: cmp $0xfed77602,%ebp ; {oop(a 'org/jruby/MetaClass')} 0x00000001060a1c06: jne 0x00000001060a1c1e ;*if_acmpne ; - org.jruby.runtime.invokedynamic.InvocationLinker::testMetaclass@8 (line 633) ; - java.lang.invoke.MethodHandle::invokeExact@3 ; - java.lang.invoke.MethodHandle::invokeExact@5 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) 0x00000001060a1c08: movabs $0x7f6bf4bb0,%rax ;*areturn ; - ruby.__dash_e__::method__0$RUBY$foo@6 (line 1) ; - java.lang.invoke.MethodHandle::invokeExact@6 ; - java.lang.invoke.MethodHandle::invokeExact@31 ; - java.lang.invoke.MethodHandle::invokeExact@29 ; - ruby.__dash_e__::method__1$RUBY$invoker@3 (line 1) ; {oop(a 'org/jruby/RubyFixnum')} 0x00000001060a1c12: add $0x30,%rsp 0x00000001060a1c16: pop %rbp 0x00000001060a1c17: test %eax,-0xec3c1d(%rip) # 0x00000001051de000 ; {poll_return} 0x00000001060a1c1d: retq Done!
97. Benchmarks
100. That’s it!
101. Twitter: @bascule Celluloid: celluloid.io Blog: unlimitednovelty.com