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
1.2 KiB
Plaintext
27 lines
1.2 KiB
Plaintext
# 2000000 products, container = 1 GB / 1 CPU (cgroup), -XX:MaxRAMPercentage=50 (512 MB heap), NMT summary on, medians of 3 runs
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== jdk26-default (the JVM chose)
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collectors=[Copy, MarkSweepCompact] cpus=1
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startup=4.808s live=320MB rss=529MB loadMillis=695 gcDuringLoad=9 (523ms)
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NMT: GC committed=1730 KB Total committed=597325 KB
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== jdk26 -XX:+UseG1GC
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collectors=[G1 Young Generation, G1 Concurrent GC, G1 Old Generation] cpus=1
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startup=4.8s live=320MB rss=486MB loadMillis=909 gcDuringLoad=12 (517ms)
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NMT: GC committed=46627 KB Total committed=642767 KB
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== jdk27-default (the JVM chose)
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collectors=[G1 Young Generation, G1 Concurrent GC, G1 Old Generation] cpus=1
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startup=4.8s live=272MB rss=436MB loadMillis=700 gcDuringLoad=8 (472ms)
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NMT: GC committed=43443 KB Total committed=493486 KB
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== jdk27 -XX:+UseSerialGC
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collectors=[Copy, MarkSweepCompact] cpus=1
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startup=5.101s live=271MB rss=482MB loadMillis=692 gcDuringLoad=9 (495ms)
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NMT: GC committed=1730 KB Total committed=597439 KB
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== jdk27 -XX:+UseSerialGC, compact off
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collectors=[Copy, MarkSweepCompact] cpus=1
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startup=4.706s live=318MB rss=530MB loadMillis=630 gcDuringLoad=9 (487ms)
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NMT: GC committed=1730 KB Total committed=597465 KB
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