Ankur Mhatre
958b401f0f
Adds spring-boot-startup-time/, the companion project for BLOG-618: a runnable Spring Boot 4.1.1 application on JDK 25 that installs BufferingApplicationStartup and FlightRecorderApplicationStartup behind a system property, and a /diag/startup endpoint that computes step self time -- the number /actuator/startup does not give you and the one that names the actual culprits. Captured under docs/output/: the step tree sorted both ways, the same startup as JFR events, a +5000-class experiment putting 0.11 ms per scanned class on the classpath scan tax, the silent truncation a 2048-step buffer performs, and JDK 25 AOT cache timings (6.93 s to 4.82 s). Post body and metadata live in post/. Moves the existing Actuator project into actuator-in-production/ so the repository holds one directory per article; the root README is now an index.
25 lines
1.0 KiB
Bash
Executable File
25 lines
1.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Regenerate every file in docs/output/. Budget ~20 minutes; the scan-tax demo rebuilds
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# the project four times and the AOT demo builds a 118 MB cache.
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set -uo pipefail
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source "$(dirname "$0")/env.sh"
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cd "$ROOT"
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mvn -B -q -DskipTests package || exit 1
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./scripts/demo-versions.sh > docs/output/00-versions.txt 2>&1
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# 01-api-corrections.txt is javap and compiler output, kept by hand; see docs/02.
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./scripts/demo-startup-tree.sh > docs/output/02-startup-tree.txt 2>&1
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./scripts/demo-jfr.sh > docs/output/03-jfr.txt 2>&1
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RUNS=3 ./scripts/demo-scan-tax.sh > docs/output/04-scan-tax.txt 2>&1
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RUNS=4 ./scripts/demo-what-helps.sh > docs/output/05-what-helps.txt 2>&1
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./scripts/gen-bulk.sh 5000 component > /dev/null
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mvn -B -q -DskipTests package || exit 1
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./scripts/demo-buffer-overflow.sh > docs/output/06-buffer-overflow.txt 2>&1
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rm -rf src/main/java/com/ankurm/startup/bulk
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mvn -B -q -DskipTests package
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./scripts/stop.sh
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echo "docs/output regenerated."
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