2018/12/12 Fukuoka LTでの登壇資料です

1. GraalVM
Fukuoka LT 2018/12/12
LINE Fukuoka

2. •
• LINE Fukuoka
• @kis
• Oracle Code One

3. Java
• 2007 ( )
• Java
• 2019/1/12( ) Oracle Code One 2018
• connpass

4. • GraalVM
• GraalVM

5. GraalVM
• Oracle JVM
• http://www.graalvm.org/
• Graal + Truffle
• Polyglot
• JS, Python, Ruby, …
•

6. GraalVM and MicroProfile: A Polyglot Microservices Solution [DEV6016]

7. Graal
• Java JIT
• C2
Client(C1) Server(C2)
Compiler Interface
HotSpot
Graal
JVMCI
HotSpot
Written in Java

8. Truffle Sulong
• Truffle
•
• AST GC
• LLVM
• Sulong
• LLVM bitcode -> Truffle AST
• LLVM
• Rust, Swift, C…

9. Polyglot
• Truffle
• JavaScript(Graal JS), Ruby(TruffleRuby), Python, R…
•
•
• Oracle MySQL SQL JavaScript

10. • Java
• SubstrateVM
Instant Startup and Low Footprint for Java [DEV5705]

11. GraalVM
• JVM
• Polyglot
• LLVM
•

12. VM
• JIT
• Also available with JDK11
java -XX:+UnlockExperimentalVMOptions
-XX:+EnableJVMCI
-XX:+UseJVMXCICompiler Hello

13. •
•
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16
18
( )
JDK8 JDK11 JDK11+Graal GraalVM
https://github.com/kishida/smallpt4j/blob/original/src/main/java/naoki/smallpt/SmallPT.java

14. •
• Graal
• Graal
• JIT Graal
2172 5376 1 org.graalvm.compiler.lir.amd64.AMD64Move::canMoveConst2Stack (81 bytes)
2172 5377 1 org.graalvm.compiler.core.amd64.AMD64NodeMatchRules$1::<init> (50 bytes)
2172 5385 1 org.graalvm.compiler.core.common.type.ObjectStamp::getLIRKind (7 bytes)
2172 5386 1 org.graalvm.compiler.core.amd64.AMD64ArithmeticLIRGenerator::emitAdd (232 bytes)
2174 5387 1 org.graalvm.compiler.lir.gen.LIRGenerator::emitJavaConstant (16 bytes)
2174 5378 1 org.graalvm.compiler.core.amd64.AMD64NodeMatchRules$1::evaluate (181 bytes)
2175 5388 1 org.graalvm.compiler.core.common.type.FloatStamp::getLIRKind (11 bytes)
2175 5392 3 org.graalvm.collections.EconomicMapImpl$1::iterator (9 bytes)
2175 5393 3 org.graalvm.collections.EconomicMapImpl$1$1::<init> (15 bytes)

15. Polyglot
• JavaScript Java
$ js --jvm --polyglot
> var BigInteger = Java.type(‘BigInteger’)
> BigInteger.valueOf(123).pow(10).toString()
• JavaScript Ruby
> Interop.eval(‘ruby’, ‘print “hello”’)

16. LLVM
• Rust
$ rustc --emit=llvm-bc main.rs
$ lli --lib $(rustc --print sysroot)/lib/libstd-* main.bc

17. •
$ native-image Hello
$ ./Hello
•
• 46 (JDK11 11 , GraalVM 17 )
• ->10MB
• GraalVM 1.0 RC1
ImageIO
graaldemo $ time java Hello
Hello!
real 0m0.103s
user 0m0.068s
sys 0m0.025s
graaldemo $ time ./hello
Hello!
real 0m0.013s
user 0m0.005s
sys 0m0.006s

18. • GraalVM