JohnTortugo

==================== C2 ====================
openjdk version "25.0.2" 2026-01-20 LTS
OpenJDK Runtime Environment Corretto-25.0.2.10.1 (build 25.0.2+10-LTS)
OpenJDK 64-Bit Server VM Corretto-25.0.2.10.1 (build 25.0.2+10-LTS, mixed mode, sharing)
Java version: 25.0.2
String size: 10000
Substring length: 20
Iterations: 50000000
Total time: 756.349 ms
ns/op: 15.13

JohnTortugo

# Create project
mvn archetype:generate \
  -DarchetypeGroupId=org.openjdk.jmh \
  -DarchetypeArtifactId=jmh-java-benchmark-archetype \
  -DarchetypeVersion=1.37 \
  -DgroupId=com.jtortugo \
  -DartifactId=TortugoBenchmark \
  -Dversion=HEAD \
  -DinteractiveMode=false

JohnTortugo

## # OSX useful installs
##
## brew install fzf
## $(brew --prefix)/opt/fzf/install
## brew install fd
## brew install ripgrep
##
## ----------------------------
## # Amazon Linux installs
##

JohnTortugo

mx --dy /compiler benchmark js-interop-jmh:JS_INTEROP_MICRO_BENCHMARKS -- --jvm=server --jvm-config=hosted -- -f 1 -w 1 -i 1

JohnTortugo

import org.graalvm.polyglot.Context;
import org.graalvm.polyglot.Engine;
import org.graalvm.polyglot.Source;
import org.graalvm.polyglot.Value;
import org.graalvm.polyglot.proxy.ProxyObject;

public class ProxyFieldAccess {
    private static final int BENCH_ITERATIONS = 11000;
	private static long[] times = new long[BENCH_ITERATIONS];
	private static Double[] results = new Double[BENCH_ITERATIONS];

JohnTortugo

[2.701s][debug][codecache] Flushing nmethod  22/0x00007f71e9874a08, level=3, osr=0, cold=1, epoch=4, cold_count=2. Cache capacity: 7552Kb, free space: 13003Kb. method length
[2.701s][debug][codecache] Flushing nmethod  32/0x00007f71e9876288, level=3, osr=0, cold=1, epoch=4, cold_count=2. Cache capacity: 7552Kb, free space: 13003Kb. method map
[2.701s][debug][codecache] Flushing nmethod  72/0x00007f71e9925908, level=3, osr=0, cold=1, epoch=4, cold_count=2. Cache capacity: 7552Kb, free space: 13003Kb. method ensureCapacityInternal
[2.701s][debug][codecache] Flushing nmethod 137/0x00007f71e9adcd08, level=3, osr=0, cold=1, epoch=4, cold_count=2. Cache capacity: 7552Kb, free space: 13003Kb. method equals
[2.701s][debug][codecache] Flushing nmethod 118/0x00007f71e9add108, level=3, osr=0, cold=1, epoch=4, cold_count=2. Cache capacity: 7552Kb, free space: 13003Kb. method getShortUnaligned
[2.701s][debug][codecache] Flushing nmethod 109/0x00007f71e9adda88, level=3, osr=0, cold=1, epoch=4, cold_count=2. Cache capacity:

JohnTortugo

void nmethod::purge(bool free_code_cache_data, bool unregister_nmethod) {
  assert(!free_code_cache_data, "must only call not freeing code cache data");

  MutexLocker ml(CodeCache_lock, Mutex::_no_safepoint_check_flag);

  // completely deallocate this method
  const char* name = method()->name()->as_C_string();
  const char* is_jvmci = "";
  const char* is_osr = is_osr_method() ? "osr" : "";
  const size_t code_cache_free_space = CodeCache::unallocated_capacity(CodeCache::get_code_blob_type(this))/1024;

JohnTortugo

#!/bin/bash

sudo apt install -y libcups2-dev libfontconfig1-dev
sudo apt install -y autoconf git make unzip zip
sudo apt install -y build-essential libasound2-dev
sudo apt-get install libx11-dev libxext-dev libxrender-dev libxrandr-dev libxtst-dev libxt-dev

sudo mkdir /wf/
sudo chgrp -R ec2-user /wf/
sudo chown -R ec2-user /wf/

JohnTortugo

/wf/tortugo-master/build/linux-x86_64-server-fastdebug/jdk/bin/javac -cp build/linux-x86_64-server-fastdebug/support/test/lib/test-lib.jar:/wf/tortugo-master/build/linux-x86_64-server-fastdebug/support/test/lib/wb_classes/ TestMethodEvictionAndProfiling.java

/wf/tortugo-master/build/linux-x86_64-server-fastdebug/jdk/bin/java         \
    -Xbootclasspath/a:/wf/tortugo-master/build/linux-x86_64-server-fastdebug/support/test/lib/wb_classes/       \
    -cp .:/wf/tortugo-master/build/linux-x86_64-server-fastdebug/support/test/lib/test-lib.jar                  \
    -XX:+UnlockDiagnosticVMOptions                                              \
    -XX:+WhiteBoxAPI                                                            \
    -Xbatch                                                                     \
    -XX:+SegmentedCodeCache                                                     \
    -XX:+UseG1GC                                                                \

JohnTortugo

#!/bin/bash

sudo yum install -y alsa-lib-devel cups-devel fontconfig-devel
sudo yum install -y libXtst-devel libXt-devel libXrender-devel libXrandr-devel libXi-devel
sudo yum install -y autoconf git make
sudo yum groupinstall -y "Development Tools"

sudo mkdir /wf/
sudo chgrp -R ec2-user /wf/
sudo chown -R ec2-user /wf/