Add shenandoah-jdk28: generational vs SATB Shenandoah, G1 and ZGC on a Spring Boot service (JEP 535 status probe included)

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HmvoHH3ZnCEaPNXRpDxDZe
2026-10-24 10:53:17 +00:00
parent df13a904d7
commit b25bd65d4b
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+median of 5 runs per configuration (latency from a fixed-rate open loop; throughput from a closed loop)
+
+configuration                      p50 ms         p99 ms       p99.9 ms         max ms     peak req/s         pauses   pause p99 ms   pause max ms pause total ms         RSS MB
+g1                                   0.63           29.2          128.1          179.5           8900             65        111.576        111.576           1384           1205
+zgc                                  0.60            7.4           17.3           36.4           7117            155          0.090          0.168              3           1250
+shenandoah-satb                      0.78           14.9           43.6           86.4           5026            204          0.981          1.475             44           1212
+shenandoah-generational              0.82         1557.5         1820.4         1864.7           5498            293          1.398          2.553             76           1227