JVM Comparasion:Benchmark Performance of different JDK/JVMs
JDK/JVM Combinations Tested:
1. Oracle JDK 8 (v.1.8.0_221)
2. GraalVM Enterprise Edition (v19.2.0)
3. GraalVM Community Edition (v19.2.0)
4. Open JDK 11 (v11.0.2)
5. Open JDK 11 embedded Graal JVMCI (v11.0.2)
Benchmark on IntList operations
Three operations were benchmarked on primitive collections:
Filter:Filter in all even numbers (7 benchmarks)
Sum : Sum of all integers in the collection(5 benchmarks)
Transform :Multiply each integer by 2( 5 benchmarks)
Benchmarks on Object Opeartions
JDK Flags - Part 1:
In order to run embedded graal compiler in open jdk 11
Three JDK Flags can be used to determine full capability of it
•In order to run the C2 compiler in Graal VM EE (v-19.2.0), two jdk flags had to enable for GraalVM.
Executive Summary Of Testings Different Versions Java
Java 17 is 8.66% faster than Java 11 and 2.41% faster than Java 16 for G1GC (default).
Java 17 is 6.54% faster than Java 11 and 0.37% faster than Java 16 for ParallelGC.
The Parallel Garbage Collector is 16.39% faster than the G1 Garbage Collector.
The latest JDK is faster and the high throughput garbage collector is faster than the low latency garbage collector.
Should you migrate from Java 8 to Java 17?
To keep it short: yes, you should. If you have a large, high-load enterprise application and still use Java 8, you will definitely see better performance, faster startup time, lower memory footprint after migrating. Programmers working on that application should also be happier, as there are many improvements to the language itself.
The cost of doing so, however, is difficult to estimate and varies greatly depending on used application servers, libraries, and the complexity of the application itself (or rather the number of low-level features it uses/reimplements).
