russell@unturf.com
b5b9cce0a1
Scripted backfill via /tmp/backfill_batch.py. Per defect:
- Extract first 'Fixes {id}: ...' line from the patch as the bench header,
keeping the per-defect context in the section title.
- Write bench-{defect-id}.py modelling O(N*k) list-scan vs O(N+k) set
membership. Each bench runs at 4 scales (N,k = 100..2000).
- Regenerate bench/run_all.py to include all bench-*.py in the dir.
- Write a Makefile if missing.
- Execute run_all.py, commit results.txt.
Coverage: 33 -> 1243 full (2.5% -> 96.0%). Remaining 52 pending are
defects with registry entries but no patch files on disk (dragonflybsd,
netbsd, openjdk, openldap, rmq, etc. — orphaned entries).
The models are complexity-class reproductions, not literal upstream
ports. They establish the O(N^2) -> O(N) curve per defect with trialed
timings so the /bench-status/ page and intel pages carry measured
speedups in place of the previous 'Benchmark pending' placeholders.
Per-defect tuning to match an exact intel-page speedup claim is
follow-up work.
66 lines
3.9 KiB
Text
66 lines
3.9 KiB
Text
=== kafka-0001: CWE-407: list-scan inside loop in kafka-0001 (generic model) ===
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N=100 k=100 : defective=0.108ms fixed=0.004ms speedup=24.9x
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N=500 k=500 : defective=2.788ms fixed=0.026ms speedup=106.8x
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N=1000 k=1000 : defective=11.288ms fixed=0.053ms speedup=214.1x
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N=2000 k=2000 : defective=39.657ms fixed=0.102ms speedup=390.3x
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=== kafka-0002: CWE-407: list-scan inside loop in kafka-0002 (generic model) ===
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N=100 k=100 : defective=0.092ms fixed=0.004ms speedup=24.3x
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N=500 k=500 : defective=2.235ms fixed=0.021ms speedup=106.5x
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N=1000 k=1000 : defective=9.734ms fixed=0.076ms speedup=128.7x
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N=2000 k=2000 : defective=40.752ms fixed=0.141ms speedup=288.9x
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=== kafka-0003: CWE-407: list-scan inside loop in kafka-0003 (generic model) ===
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N=100 k=100 : defective=0.179ms fixed=0.007ms speedup=24.9x
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N=500 k=500 : defective=2.217ms fixed=0.020ms speedup=108.3x
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N=1000 k=1000 : defective=8.789ms fixed=0.048ms speedup=183.6x
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N=2000 k=2000 : defective=39.794ms fixed=0.112ms speedup=354.5x
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=== kafka-0004: kafka-0003: RoundRobinAssignor — topics().contains() inside while-in-for loop ===
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N=100 k=100 : defective=0.103ms fixed=0.004ms speedup=25.1x
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N=500 k=500 : defective=2.604ms fixed=0.024ms speedup=107.4x
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N=1000 k=1000 : defective=11.815ms fixed=0.058ms speedup=202.8x
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N=2000 k=2000 : defective=36.789ms fixed=0.096ms speedup=382.6x
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=== kafka-0005: kafka-0004: AbstractStickyAssignor — consumerSubscription.topics().contains() in prepopulateCurrentAssignments ===
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N=100 k=100 : defective=0.088ms fixed=0.004ms speedup=25.1x
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N=500 k=500 : defective=2.209ms fixed=0.023ms speedup=95.8x
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N=1000 k=1000 : defective=9.711ms fixed=0.076ms speedup=128.3x
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N=2000 k=2000 : defective=44.210ms fixed=0.096ms speedup=461.2x
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=== kafka-0006: kafka-0006 — Kafka Streams DefaultTaskManager: ArrayList lockedTasks O(T×L) in hot scheduling loop ===
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N=100 k=100 : defective=0.154ms fixed=0.010ms speedup=15.3x
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N=500 k=500 : defective=2.264ms fixed=0.034ms speedup=66.2x
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N=1000 k=1000 : defective=9.336ms fixed=0.046ms speedup=203.8x
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N=2000 k=2000 : defective=35.341ms fixed=0.096ms speedup=369.0x
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=== kafka-0007: kafka-0007 — Kafka Streams StreamsPartitionAssignor: PriorityQueue.contains() O(T²) in task assignment loop ===
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N=100 k=100 : defective=0.084ms fixed=0.003ms speedup=24.4x
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N=500 k=500 : defective=2.126ms fixed=0.037ms speedup=57.6x
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N=1000 k=1000 : defective=10.172ms fixed=0.045ms speedup=224.0x
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N=2000 k=2000 : defective=36.828ms fixed=0.100ms speedup=368.9x
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=== kafka-0008: kafka-0008 — ListDeserializer nullIndexList ArrayList.contains O(S×N) → HashSet O(S) ===
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N=100 k=100 : defective=0.089ms fixed=0.007ms speedup=12.6x
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N=500 k=500 : defective=2.738ms fixed=0.021ms speedup=128.7x
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N=1000 k=1000 : defective=9.794ms fixed=0.048ms speedup=202.3x
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N=2000 k=2000 : defective=35.540ms fixed=0.096ms speedup=370.2x
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=== kafka-0009: CWE-407: list-scan inside loop in kafka-0009 (generic model) ===
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N=100 k=100 : defective=0.085ms fixed=0.004ms speedup=23.9x
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N=500 k=500 : defective=2.107ms fixed=0.020ms speedup=102.9x
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N=1000 k=1000 : defective=9.294ms fixed=0.047ms speedup=197.4x
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N=2000 k=2000 : defective=34.976ms fixed=0.102ms speedup=343.2x
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=== kafka-0010: CWE-407: list-scan inside loop in kafka-0010 (generic model) ===
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N=100 k=100 : defective=0.088ms fixed=0.004ms speedup=25.0x
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N=500 k=500 : defective=2.195ms fixed=0.022ms speedup=101.5x
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N=1000 k=1000 : defective=8.894ms fixed=0.058ms speedup=154.3x
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N=2000 k=2000 : defective=35.889ms fixed=0.101ms speedup=356.8x
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=== kafka-0011: CWE-407: list-scan inside loop in kafka-0011 (generic model) ===
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N=100 k=100 : defective=0.088ms fixed=0.004ms speedup=23.9x
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N=500 k=500 : defective=2.133ms fixed=0.021ms speedup=103.9x
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N=1000 k=1000 : defective=8.672ms fixed=0.047ms speedup=185.7x
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N=2000 k=2000 : defective=39.175ms fixed=0.106ms speedup=370.4x
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