Claude
e83c9949d8
Spring Boot 4.1.1 catalog service measured on JDK 25, 26 and 27: live heap 320 MB to 273 MB with compact headers, per-class bytes per instance, container-sizing sweeps with real cgroup limits, 1-CPU Serial vs G1 with Native Memory Tracking, removed flags (MaxRAM, UseCompressedClassPointers), and a kernel OOM-kill check. Outputs in jdk27-memory/output. Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01TF9JWFvJSNm6HVzswzZU5a
27 lines
1.3 KiB
Bash
Executable File
27 lines
1.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Regenerates every file in output/. Needs three JDKs and, for the container runs, root plus a writable
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# cgroup v1 hierarchy (the sandbox this was written in has no Docker daemon, so the limits are set by hand
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# the way Docker sets them). Takes about 45 minutes.
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# JDK25=/path JDK26=/path JDK27=/path ./run.sh
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# FAST=1 ./run.sh one run per configuration, for a quick look
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set -u
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cd "$(dirname "$0")"
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ORIG_JTO="${JAVA_TOOL_OPTIONS:-}" # kept only for Maven, which may need a proxy or trust store
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source scripts/env.sh
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RUNS=5; CRUNS=3
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if [ -n "${FAST:-}" ]; then RUNS=1; CRUNS=1; fi
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if [ ! -f target/catalog.jar ]; then
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JAVA_HOME="$JDK25" JAVA_TOOL_OPTIONS="$ORIG_JTO" mvn -q -B -DskipTests package
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fi
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mkdir -p output
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bash scripts/sample.sh > output/00-sample-endpoints.txt
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bash scripts/flags.sh > output/01-jvm-defaults.txt
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bash scripts/footprint.sh 2000000 "$RUNS" > output/02-footprint.txt
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bash scripts/classes.sh > output/03-classes.txt
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bash scripts/offsets.sh > output/04-offsets.txt
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bash scripts/container-sizing.sh 2000000 "$CRUNS" > output/05-container-sizing.txt
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bash scripts/one-cpu.sh 2000000 "$CRUNS" > output/06-one-cpu.txt
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bash scripts/oom-check.sh > output/07-oom-check.txt
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echo done
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