Extend type-profile pollution to the remaining map/set benchmarks (perf toolbox - benchmark) - #12298

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dougqh wants to merge 37 commits into

dougqh/benchmarkutils-map-set-pollution

Commits on Sep 22, 2026

Add EmbeddingSupport.contains(hashes, names, name) helper

dougqh
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claude
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98b34e3
Add hitFresh scenario and hash-dispatch pollution to ImmutableSetBenchmark

dougqh
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claude
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a440151
Restructure StringIndex put/indexOf around a single induction variable
dougqh
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ae7207a
Split BenchmarkUtils type-profile pollution into add-driving and contains-only helpers
dougqh
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69e5509
Scope StringIndex-as-Set guidance to hit-dominated access patterns
dougqh
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cccabcd
Pollute type dispatch in ImmutableMapBenchmark and refresh results
dougqh
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1efce43
Tighten benchmark javadoc wording per review

dougqh
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claude
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786bd68
Extend BenchmarkUtils with ConcurrentHashMap and Map-dispatch pollution
dougqh
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b5e9007
Wire BenchmarkUtils.polluteHashDispatch into the remaining map/set benchmarks
dougqh
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f2b6e86
Record pollution-corrected results in SingleThreadedMapBenchmark
dougqh
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dd3eba5
Record pollution-corrected results in SingleThreadedSetBenchmark
dougqh
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8c60545
Record pollution rerun results in HashtableD1Benchmark
dougqh
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0aea116
Record pollution rerun results in HashtableD2Benchmark
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fe50efd
Record pollution rerun results in CaseInsensitiveMapBenchmark
dougqh
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b683585
Record pollution rerun results in TagMapAccessBenchmark
dougqh
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c514c05
Correct HashtableD1Benchmark's pollution-immunity rationale
dougqh
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6749897
Correct HashtableD2Benchmark's pollution-immunity rationale
dougqh
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35c3591
Attribute CaseInsensitiveMapBenchmark's rerun slowdown to JDK 8 on ARM64
dougqh
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f6e3ca8
Attribute TagMapAccessBenchmark's rerun slowdown to JDK 8 on ARM64
dougqh
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e6175c5
Record Java 17 rerun for HashtableD1Benchmark
dougqh
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7f9fbf1
Record Java 17 rerun for HashtableD2Benchmark
dougqh
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7f6889d
Address bot review findings on benchmark pollution helper and javadoc
dougqh
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3d9b93a
Record JDK 8 rerun results with fixed pollution helper for ThreadSafeMap benchmarks

dougqh
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claude
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56a31d9
Replace JDK 8 rerun with clean same-JDK pollution comparison

dougqh
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claude
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acd9bd0

Commits on Sep 23, 2026

Pollute compareTo and MapN dispatch in BenchmarkUtils

dougqh
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claude
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ecbdd4f
Add a perf-review rubric check for Map/Set JMH benchmark dispatch pollution

dougqh
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claude
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2c0117e
Merge remote-tracking branch 'origin/master' into dougqh/benchmarkutils-map-set-pollution
dougqh
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30c5de2
Re-pollute hash/compareTo dispatch every invocation, not once per trial

dougqh
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claude
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71a383e

Commits on Sep 25, 2026

Merge remote-tracking branch 'origin/master' into dougqh/benchmarkutils-map-set-pollution
dougqh
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b1c09ce
Simplify pollution warm-up to a single scratch-free entry point

dougqh
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claude
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74435ac
Merge remote-tracking branch 'origin/dougqh/benchmarkutils-map-set-pollution' into dougqh/benchmarkutils-map-set-pollution
dougqh
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67516de
Correct benchmark dispatch claims and measure allocation directly

dougqh
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claude
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165dfc0
Correct the Object decoy's contribution in distinctEqualCopy javadoc

dougqh
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3878379
Attribute the synchronized HashMap gap to lock contention, not dispatch

dougqh
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99ca351
Refresh benchmark tables from a -prof gc run and retract stale claims

dougqh
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19c00ff
Document the branch-profile / escape-analysis interaction

dougqh
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492066b
Reframe BenchmarkUtils around fork isolation as the root cause

dougqh
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1ce8fec