This document summarizes a presentation about Oracle's GraalVM and how it can be used to run PHP code. It discusses GraalVM's just-in-time compilation capabilities and how Truffle allows PHP to run on GraalVM. Benchmark results show that a Truffle-based PHP on GraalVM has significantly faster performance than PHP's default interpreter or just-in-time compiler.

1. GraalVM
Truffle PHP
Oracle Code One 2018 in
2019/1/12 LINE Fukuoka

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

3. Today’s talk
• About the Oracle Code One
• About the GraalVM
• GraalVM in practice

4. About the Oracle Code One
• Former as known as JavaOne
• Java
• Sun Francisco Moscone Center West
• Beck

5. • Marriortt
•

6. Marriott
• Marriott Westin
• One Job Enough
•
( )

7. •
• → → →

8. • 2
• JDK11 with JShell(120 )
•
(45 )
https://qiita.com/nowokay/items/80e8ccd50f6749846dd6

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

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

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

12. Truffle and Sulong
• Truffle
• AST
• AST GC
• LLVM
• Sulong
• LLVM bitcode -> Truffle AST
• LLVM OK
• Rust, C…

13. Polyglot
• Truffle
• JavaScript(Graal JS), Ruby(TruffleRuby), Python, R…
•
• js --inspect hoge.js
•
• Oracle MySQL SQL JavaScript

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

15. GraalVM in Oracle Code One 2018
• graal 10
• Vision and Roadmap
• GraalVM JavaScript
vue ( )

16. GraalVM
• JVM
• Polyglot
• LLVM
•
• See also
• Ten Things You Can Do with GraalVM - BYOL [HOL5576]
• Instant Startup and Low Footprint for Java [DEV5705]

17. VM
• JIT
• Also available with JDK11
java -XX:+UnlockExperimentalVMOptions
-XX:+EnableJVMCI
-XX:+UseJVMXCICompiler Hello
• Oracle Code One

18. •
•
0
2
4
6
8
10
12
14
16
18
( )
JDK8 JDK11 JDK11+Graal GraalVM
https://github.com/kishida/smallpt4j/blob/original/src/main/java/naoki/smallpt/SmallPT.java

19. •
• 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)

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

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

22. •
$ 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

23. Truffle
• Truffle
• AST
• AST GC
•
• Graal JIT SDK
• AST Graal JIT
• Graal JIT
• Object ( )
• ( Java )

24. Graal Truffle
• Graal Java JIT
• Java AST
• AST Java
• Java Graal
• Graal SDK
•
•
→ Truffle
•

25. • Node
• Frame
• CallTarget
• TruffleObject
• CompilationDerective Graal
http://d.hatena.ne.jp/nowokay/20190101#1546291326

26. PHP
•
• + - < > .( )
•
•
• if
• echo
https://github.com/kishida/phpparser

27. <?php
function fib($n) {
if ($n < 2) {
return $n;
}
return fib($n - 1) + fib($n - 2);
}
echo "fib:".fib(31);
echo "¥n";

28. <?php function fib($n) {
if ($n < 2) {
return $n;
}
return fib($n - 1) + fib($n - 2);
}
$start = microtime(1);
echo "fib:".fib(31);
echo "¥n";
echo "time:".(microtime(1) - $start);
echo "¥n";
fib(31);fib(31);fib(31);fib(31);fib(31);
$start = microtime(1);
echo "fib:".fib(31);
echo "¥n";
echo "time:".(microtime(1) - $start);
echo "¥n";

29. • (interpreter) on JDK 11
• Truffle JDK 11
• Truffle GraalVM CE
• Truffle GraalVM CE
• Truffle GraalVM EE
• Truffle GraalVM EE
• PHP 5.6
• PHP 7.3

30. (JIT )
• PHP 7.3 PHP5.6 3
• PHP7.3 7
• Truffle+GraalVM CE PHP7.3
• Truffle+GraalVM EE PHP7.3 2
• GraalVM CE
PHP7.3 2
• GraalVM EE
PHP7.3 4

31. • JIT
•
•
• EE PHP7.3
• CE PHP7.3

32. • PHP
•
•
• EE CE
<?php
function fib($n) {
if ($n < 2) {
return $n;
}
return fib($n - 1) + fib($n - 2);
}
echo "fib:".fib(31);
echo "¥n";

33. • Real User CPU
• JVM User
•
CPU
• GraalVM Real User
• Graal
CPU

34. • PHP PHP3 PHP4 PHP5 PHP7
(PHP6 )
•
PHP7
•

35. • GraalVM
• Truffle