#!/usr/bin/env bash
# Builds and runs the JMH read-path benchmark on JDK 27 and writes ../output/07-jmh.txt (about 3 minutes).
# JDK27=/path ./run-jmh.sh     (run ./fetch.sh once first)
set -uo pipefail
unset JAVA_TOOL_OPTIONS
HERE="$(cd "$(dirname "$0")" && pwd)"; cd "$HERE"
JDK27="${JDK27:-/opt/jdks/jdk27}"
CP="$(ls lib/*.jar | tr '\n' ':')"; B="$(mktemp -d)"; trap 'rm -rf "$B"' EXIT
"$JDK27/bin/javac" --enable-preview --release 27 -cp "$CP" -processorpath "$CP" -d "$B" src/bench/AccessBench.java 2>&1 | grep -v '^Note:'
{
  echo "\$ java --enable-preview org.openjdk.jmh.Main -f 3 -wi 3 -w 1 -i 5 -r 1     ($("$JDK27/bin/java" -version 2>&1 | sed -n 2p | sed 's/.*(build \(.*\))/\1/'), JMH 1.37)"
  echo "machine: $(nproc) CPUs, $(grep -m1 'model name' /proc/cpuinfo | sed 's/.*: //')"
  "$JDK27/bin/java" --enable-preview -cp "$B:$CP" org.openjdk.jmh.Main -f 3 -wi 3 -w 1 -i 5 -r 1 -jvmArgs "--enable-preview" 2>&1 | sed -n '/^Benchmark /,$p'
} > "$HERE/../output/07-jmh.txt"
cat "$HERE/../output/07-jmh.txt"