Adopting GraalVM - NE Scala 2019
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The document discusses the adoption of GraalVM, highlighting its performance benefits through just-in-time (JIT) and ahead-of-time (AOT) compilation, particularly for Scala applications. It addresses limitations such as library support and compatibility with JDK versions and provides benchmarking results comparing traditional JVM performance with GraalVM. Furthermore, it outlines potential use cases for GraalVM in small programs, AWS Lambdas, and other applications.
![JDK 11
[success] Total time: 571 s, ...
real 12m48.492s
user45m40.264s
sys 2m31.045s
vs.
Graal
(using the flags)
[success] Total time: 507 s, ...
real 11m34.191s
user41m52.512s
sys 2m12.863s
Stopwatch Compiling](https://image.slidesharecdn.com/adoptinggraalvm-nescala2019-190405194115/85/Adopting-GraalVM-NE-Scala-2019-13-320.jpg)
![jdk 1.8.0_161-b12
jmh:run -i 10 -wi 10 -f4 -t4
Primes
[info] Benchmark Mode Cnt
Score Error Units
**[info] Primes.getPrimes
avgt 40 45652.951 ±
2083.281 us/op**
vs.
graalvm-ee-1.0.0-rc8
jmh:run -i 10 -wi 10 -f4 -t4
Primes
[info] Benchmark Mode Cnt
Score Error Units
**[info] Primes.getPrimes
avgt 40 40535.844 ±
1977.021 us/op**
Primes II](https://image.slidesharecdn.com/adoptinggraalvm-nescala2019-190405194115/85/Adopting-GraalVM-NE-Scala-2019-25-320.jpg)
Adopting GraalVM - NE Scala 2019
- 3. GraalVM: Run Programs Faster Anywhere
- 8. ● JDK 10/11 requires Scala 2.13 Limitations & Challenges
- 9. ● JDK 10/11 requires Scala 2.13 ● Limited library support Limitations & Challenges
- 10. ● JDK 10/11 requires Scala 2.13 ● Limited library support ● Scaladex Limitations & Challenges
- 11. ● JDK 10/11 requires Scala 2.13 ● Limited library support ● Scaladex ● Disabling compiler optimization Limitations & Challenges
- 13. JDK 11 [success] Total time: 571 s, ... real 12m48.492s user45m40.264s sys 2m31.045s vs. Graal (using the flags) [success] Total time: 507 s, ... real 11m34.191s user41m52.512s sys 2m12.863s Stopwatch Compiling
- 15. Compilation & JVM Just-in-time (JIT) ● Compiles while running ● Dynamic compilation ● Runtime information ● De-optimization ● Typical for JVM Ahead-of-time (AOT) ● Compiles before running ● Static compilation ● More resources ● Way more time ● Uncommon for JVM (JDK 9+)
- 17. object Main extends App { val max = 10000000 def isPrime(n: Int): Boolean = primes.takeWhile(p => p*p <= n).forall(n % _ != 0) val primes = 2 #:: Stream.from(3,2).filter(isPrime) primes.takeWhile(_ <= max).toList } Primes
- 18. Primes object Main extends App { val max = 10000000 def isPrime(n: Int): Boolean = primes.takeWhile(p => p*p <= n).forall(n % _ != 0) val primes = 2 #:: Stream.from(3,2).filter(isPrime) primes.takeWhile(_ <= max).toList }
- 19. Primes object Main extends App { val max = 10000000 def isPrime(n: Int): Boolean = primes.takeWhile(p => p*p <= n).forall(n % _ != 0) val primes = 2 #:: Stream.from(3,2).filter(isPrime) primes.takeWhile(_ <= max).toList }
- 20. Primes object Main extends App { val max = 10000000 def isPrime(n: Int): Boolean = primes.takeWhile(p => p*p <= n).forall(n % _ != 0) val primes = 2 #:: Stream.from(3,2).filter(isPrime) primes.takeWhile(_ <= max).toList }
- 21. jdk 1.8.0_161-b12 time <path-to-java>/java -jar primes.jar real 0m11.646s user0m14.286s sys 0m0.657s vs. graalvm-ee-1.0.0-rc8 time <path-to-graal>/java -XX:+UnlockExperimentalVMO ptions -XX:+EnableJVMCI -XX:+UseJVMCICompiler -jar primes.jar real 0m13.478s user0m29.199s sys 0m0.975s Primes
- 23. class Primes { @Benchmark @BenchmarkMode(Array(Mode.AverageTime)) @OutputTimeUnit(TimeUnit.MICROSECONDS) def getPrimes() = primes.takeWhile(_ <= max).toList } object Main extends App { new Primes().getPrimes() } Primes II
- 24. class Primes { @Benchmark @BenchmarkMode(Array(Mode.AverageTime)) @OutputTimeUnit(TimeUnit.MICROSECONDS) def getPrimes() = primes.takeWhile(_ <= max).toList } object Main extends App { new Primes().getPrimes() } Primes II
- 25. jdk 1.8.0_161-b12 jmh:run -i 10 -wi 10 -f4 -t4 Primes [info] Benchmark Mode Cnt Score Error Units **[info] Primes.getPrimes avgt 40 45652.951 ± 2083.281 us/op** vs. graalvm-ee-1.0.0-rc8 jmh:run -i 10 -wi 10 -f4 -t4 Primes [info] Benchmark Mode Cnt Score Error Units **[info] Primes.getPrimes avgt 40 40535.844 ± 1977.021 us/op** Primes II
- 26. (Early) Adopters
- 29. ● JVM starts slowly ● Scala makes it worse ● JARs bloat up quickly ● JVM needs a lot of RAM JVM Shortcomings
- 30. JDK 1.8 (JIT) time java -jar primes.jar real 0m0.555s user 0m0.613s sys 0m0.075s vs. GraalVM (AOT) <path-to-graal>/bin/native-i mage -jar primes.jar time ./primes real 0m0.039s user 0m0.004s sys 0m0.010s Counting Primes
- 31. JDK 1.8 (JIT) time java -jar primes.jar real 0m11.954s user 0m14.077s sys 0m0.739s vs. GraalVM (AOT) <path-to-graal>/bin/native-i mage -jar primes.jar time ./primes Segmentation fault: 11 real 0m0.324s user 0m0.245s sys 0m0.077s Counting Primes
- 32. ● Small programs/scripts/CLIs ● Alexa apps ● AWS Lambdas (using GO runtime) Use Cases
- 33. Do you want to use Scala in cases like these?
- 34. There is More
- 35. Summary
- 36. Questions
- 37. References
- 38. References ● https://github.com/scala/make-release-notes/blob/2.13.x/projects-2.13.md ● https://index.scala-lang.org/search?q=fullScalaVersion%3A2.13.0-M5 ● https://github.com/oracle/graal/blob/master/substratevm/LIMITATIONS.md ● https://www.youtube.com/watch?v=Rvb-kvuPzqI ● https://github.com/chrisseaton/graalvm-ten-things ● https://www.youtube.com/watch?v=wBegU4d4GRc ● https://engineering.opsgenie.com/run-native-java-using-graalvm-in-aws-lambda-with-golan g-ba86e27930bf ● https://medium.com/graalvm/instant-netty-startup-using-graalvm-native-image-generation- ed6f14ff7692 ● https://www.infoq.com/articles/Graal-Java-JIT-Compiler ● https://medium.com/graalvm/compiling-scala-faster-with-graalvm-86c5c0857fa3
- 39. Images ● https://cdn.app.compendium.com/uploads/user/e7c690e8-6ff9-102a-ac6d-e4aebca50 425/d7eaeb73-4b9e-4764-ad10-b5785d99d114/Image/497cab5d0638a34c8a08194ef b83b2fc/announcing_graalvm_version7.png ● https://cdn-images-1.medium.com/max/2000/1*rHZFwj8uu-x8KVCItuu53Q.png ● https://unsplash.com/photos/4m7gmLNr3M0 ● https://www.tecflow.com/uk/images/slechte-koude-start-tecflow.jpg