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.
11 lines
466 B
Bash
Executable File
11 lines
466 B
Bash
Executable File
#!/usr/bin/env bash
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# Stop the demo application.
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#
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# Do NOT match on the main class name with `pkill -f`. Any shell whose command line
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# happens to contain that string -- including the one that wrote this script -- matches
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# too, and gets killed. Match on the executable being java AND the jar name instead.
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for p in $(ps -eo pid=,comm=,args= | awk '$2 == "java" && /startup-diagnosis-1\.0\.0\.jar/ { print $1 }'); do
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kill -9 "$p" 2>/dev/null || true
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done
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sleep 1
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