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Optimize DAG-CBOR map decode with key-intern cache and KnownHash insert#106

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MarshalX merged 4 commits into
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optimize-decode-key-intern-cache
May 26, 2026
Merged

Optimize DAG-CBOR map decode with key-intern cache and KnownHash insert#106
MarshalX merged 4 commits into
mainfrom
optimize-decode-key-intern-cache

suppress clippy

f7b0694
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CodSpeed HQ / CodSpeed Performance Analysis succeeded May 25, 2026 in 0s

Performance Gate Passed

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 14 improved benchmarks
✅ 178 untouched benchmarks

Performance Changes

Mode Benchmark BASE HEAD Efficiency
⚡ Simulation test_dag_cbor_decode_fixtures[dagpb_11unnamedlinks+data] 33.4 µs 27.8 µs +20.06%
⚡ Simulation test_dag_cbor_decode_fixtures[dagpb_4namedlinks+data] 23.7 µs 21.2 µs +11.93%
⚡ Simulation test_dag_cbor_decode_fixtures[dagpb_7unnamedlinks+data] 27.2 µs 23.7 µs +15.06%
⚡ Simulation test_dag_cbor_decode_fixtures[dagpb_Data_zero] 14.5 µs 13 µs +11.13%
⚡ Simulation test_dag_cbor_decode_fixtures[dagpb_empty] 13.5 µs 12.1 µs +11.51%
⚡ Simulation test_dag_cbor_decode_fixtures[garbage-03] 38.8 µs 34.6 µs +12.28%
⚡ Simulation test_dag_cbor_decode_fixtures[garbage-18] 40.1 µs 35.3 µs +13.68%
⚡ Simulation test_dag_cbor_decode_fixtures[garbage-19] 26.6 µs 23.8 µs +11.64%
⚡ Simulation test_dag_cbor_decode_fixtures[map-1_pair] 13.2 µs 12 µs +10.47%
⚡ Simulation test_dag_cbor_decode_fixtures[map-keysort] 18.2 µs 15.9 µs +14.59%
⚡ Simulation test_dag_cbor_decode_real_data[citm_catalog.json] 19.9 ms 14.4 ms +38.74%
⚡ Simulation test_dag_cbor_decode_real_data[github.json] 731.5 µs 494.4 µs +47.96%
⚡ Simulation test_dag_cbor_decode_real_data[twitter.json] 8.1 ms 5.2 ms +54.19%
⚡ Simulation test_decode_car 511.4 ms 367.5 ms +39.18%

Tip

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Comparing optimize-decode-key-intern-cache (f7b0694) with main (4ea29bb)

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