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| hardware | None |
| os | None |
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| git_commit |
commit 7624c6141974f66f24ea90a18a55a111e98baa40 Author: Nikolas Klauser <nikolasklauser@berlin.de> Date: Wed Sep 3 08:15:29 2025 +0200 [libc++] Optimize {map,set}::insert(InputIterator, InputIterator) (#154703) ``` ---------------------------------------------------------------------------------------------------------------------------- Benchmark old new ---------------------------------------------------------------------------------------------------------------------------- std::map<int, int>::ctor(iterator, iterator) (unsorted sequence)/0 14.2 ns 14.8 ns std::map<int, int>::ctor(iterator, iterator) (unsorted sequence)/32 519 ns 404 ns std::map<int, int>::ctor(iterator, iterator) (unsorted sequence)/1024 52460 ns 36242 ns std::map<int, int>::ctor(iterator, iterator) (unsorted sequence)/8192 724222 ns 706496 ns std::map<int, int>::ctor(iterator, iterator) (sorted sequence)/0 14.2 ns 14.7 ns std::map<int, int>::ctor(iterator, iterator) (sorted sequence)/32 429 ns 349 ns std::map<int, int>::ctor(iterator, iterator) (sorted sequence)/1024 23601 ns 14734 ns std::map<int, int>::ctor(iterator, iterator) (sorted sequence)/8192 267753 ns 112155 ns std::map<int, int>::insert(iterator, iterator) (all new keys)/0 434 ns 448 ns std::map<int, int>::insert(iterator, iterator) (all new keys)/32 950 ns 963 ns std::map<int, int>::insert(iterator, iterator) (all new keys)/1024 27205 ns 25344 ns std::map<int, int>::insert(iterator, iterator) (all new keys)/8192 294248 ns 280713 ns std::map<int, int>::insert(iterator, iterator) (half new keys)/0 435 ns 449 ns std::map<int, int>::insert(iterator, iterator) (half new keys)/32 771 ns 706 ns std::map<int, int>::insert(iterator, iterator) (half new keys)/1024 30841 ns 17495 ns std::map<int, int>::insert(iterator, iterator) (half new keys)/8192 468807 ns 285847 ns std::map<int, int>::insert(iterator, iterator) (product_iterator from same type)/0 449 ns 453 ns std::map<int, int>::insert(iterator, iterator) (product_iterator from same type)/32 1021 ns 932 ns std::map<int, int>::insert(iterator, iterator) (product_iterator from same type)/1024 29796 ns 19518 ns std::map<int, int>::insert(iterator, iterator) (product_iterator from same type)/8192 345688 ns 153966 ns std::map<int, int>::insert(iterator, iterator) (product_iterator from zip_view)/0 449 ns 450 ns std::map<int, int>::insert(iterator, iterator) (product_iterator from zip_view)/32 1026 ns 807 ns std::map<int, int>::insert(iterator, iterator) (product_iterator from zip_view)/1024 31632 ns 15573 ns std::map<int, int>::insert(iterator, iterator) (product_iterator from zip_view)/8192 303024 ns 128946 ns std::map<int, int>::erase(iterator, iterator) (erase half the container)/0 447 ns 452 ns std::map<int, int>::erase(iterator, iterator) (erase half the container)/32 687 ns 710 ns std::map<int, int>::erase(iterator, iterator) (erase half the container)/1024 8604 ns 8581 ns std::map<int, int>::erase(iterator, iterator) (erase half the container)/8192 65693 ns 67406 ns std::map<std::string, int>::ctor(iterator, iterator) (unsorted sequence)/0 15.0 ns 15.0 ns std::map<std::string, int>::ctor(iterator, iterator) (unsorted sequence)/32 2781 ns 1845 ns std::map<std::string, int>::ctor(iterator, iterator) (unsorted sequence)/1024 187999 ns 182103 ns std::map<std::string, int>::ctor(iterator, iterator) (unsorted sequence)/8192 2937242 ns 2934912 ns std::map<std::string, int>::ctor(iterator, iterator) (sorted sequence)/0 15.0 ns 15.2 ns std::map<std::string, int>::ctor(iterator, iterator) (sorted sequence)/32 1326 ns 2462 ns std::map<std::string, int>::ctor(iterator, iterator) (sorted sequence)/1024 81778 ns 72193 ns std::map<std::string, int>::ctor(iterator, iterator) (sorted sequence)/8192 1177292 ns 669152 ns std::map<std::string, int>::insert(iterator, iterator) (all new keys)/0 439 ns 454 ns std::map<std::string, int>::insert(iterator, iterator) (all new keys)/32 2483 ns 2465 ns std::map<std::string, int>::insert(iterator, iterator) (all new keys)/1024 187614 ns 188072 ns std::map<std::string, int>::insert(iterator, iterator) (all new keys)/8192 1654675 ns 1706603 ns std::map<std::string, int>::insert(iterator, iterator) (half new keys)/0 437 ns 452 ns std::map<std::string, int>::insert(iterator, iterator) (half new keys)/32 1836 ns 1820 ns std::map<std::string, int>::insert(iterator, iterator) (half new keys)/1024 114885 ns 121865 ns std::map<std::string, int>::insert(iterator, iterator) (half new keys)/8192 1151960 ns 1197318 ns std::map<std::string, int>::insert(iterator, iterator) (product_iterator from same type)/0 438 ns 455 ns std::map<std::string, int>::insert(iterator, iterator) (product_iterator from same type)/32 1599 ns 1614 ns std::map<std::string, int>::insert(iterator, iterator) (product_iterator from same type)/1024 95935 ns 82159 ns std::map<std::string, int>::insert(iterator, iterator) (product_iterator from same type)/8192 776480 ns 941043 ns std::map<std::string, int>::insert(iterator, iterator) (product_iterator from zip_view)/0 435 ns 462 ns std::map<std::string, int>::insert(iterator, iterator) (product_iterator from zip_view)/32 1723 ns 1550 ns std::map<std::string, int>::insert(iterator, iterator) (product_iterator from zip_view)/1024 107096 ns 92850 ns std::map<std::string, int>::insert(iterator, iterator) (product_iterator from zip_view)/8192 893976 ns 775046 ns std::map<std::string, int>::erase(iterator, iterator) (erase half the container)/0 436 ns 453 ns std::map<std::string, int>::erase(iterator, iterator) (erase half the container)/32 775 ns 824 ns std::map<std::string, int>::erase(iterator, iterator) (erase half the container)/1024 20241 ns 20454 ns std::map<std::string, int>::erase(iterator, iterator) (erase half the container)/8192 139038 ns 138032 ns std::set<int>::ctor(iterator, iterator) (unsorted sequence)/0 14.8 ns 14.7 ns std::set<int>::ctor(iterator, iterator) (unsorted sequence)/32 468 ns 426 ns std::set<int>::ctor(iterator, iterator) (unsorted sequence)/1024 54289 ns 39028 ns std::set<int>::ctor(iterator, iterator) (unsorted sequence)/8192 738438 ns 695720 ns std::set<int>::ctor(iterator, iterator) (sorted sequence)/0 14.7 ns 14.6 ns std::set<int>::ctor(iterator, iterator) (sorted sequence)/32 478 ns 391 ns std::set<int>::ctor(iterator, iterator) (sorted sequence)/1024 24017 ns 13905 ns std::set<int>::ctor(iterator, iterator) (sorted sequence)/8192 267862 ns 111378 ns std::set<int>::insert(iterator, iterator) (all new keys)/0 458 ns 450 ns std::set<int>::insert(iterator, iterator) (all new keys)/32 1066 ns 956 ns std::set<int>::insert(iterator, iterator) (all new keys)/1024 29190 ns 25212 ns std::set<int>::insert(iterator, iterator) (all new keys)/8192 320441 ns 279602 ns std::set<int>::insert(iterator, iterator) (half new keys)/0 454 ns 453 ns std::set<int>::insert(iterator, iterator) (half new keys)/32 816 ns 709 ns std::set<int>::insert(iterator, iterator) (half new keys)/1024 32072 ns 17074 ns std::set<int>::insert(iterator, iterator) (half new keys)/8192 403386 ns 286202 ns std::set<int>::erase(iterator, iterator) (erase half the container)/0 451 ns 452 ns std::set<int>::erase(iterator, iterator) (erase half the container)/32 710 ns 703 ns std::set<int>::erase(iterator, iterator) (erase half the container)/1024 8261 ns 8499 ns std::set<int>::erase(iterator, iterator) (erase half the container)/8192 64466 ns 67343 ns std::set<std::string>::ctor(iterator, iterator) (unsorted sequence)/0 15.2 ns 15.0 ns std::set<std::string>::ctor(iterator, iterator) (unsorted sequence)/32 3069 ns 3005 ns std::set<std::string>::ctor(iterator, iterator) (unsorted sequence)/1024 189552 ns 180933 ns std::set<std::string>::ctor(iterator, iterator) (unsorted sequence)/8192 2887579 ns 2691678 ns std::set<std::string>::ctor(iterator, iterator) (sorted sequence)/0 15.1 ns 14.9 ns std::set<std::string>::ctor(iterator, iterator) (sorted sequence)/32 2611 ns 2514 ns std::set<std::string>::ctor(iterator, iterator) (sorted sequence)/1024 91581 ns 78727 ns std::set<std::string>::ctor(iterator, iterator) (sorted sequence)/8192 1192640 ns 1158959 ns std::set<std::string>::insert(iterator, iterator) (all new keys)/0 452 ns 457 ns std::set<std::string>::insert(iterator, iterator) (all new keys)/32 2530 ns 2544 ns std::set<std::string>::insert(iterator, iterator) (all new keys)/1024 195352 ns 179614 ns std::set<std::string>::insert(iterator, iterator) (all new keys)/8192 1737890 ns 1749615 ns std::set<std::string>::insert(iterator, iterator) (half new keys)/0 451 ns 454 ns std::set<std::string>::insert(iterator, iterator) (half new keys)/32 1949 ns 1766 ns std::set<std::string>::insert(iterator, iterator) (half new keys)/1024 128853 ns 109467 ns std::set<std::string>::insert(iterator, iterator) (half new keys)/8192 1233077 ns 1177289 ns std::set<std::string>::erase(iterator, iterator) (erase half the container)/0 450 ns 451 ns std::set<std::string>::erase(iterator, iterator) (erase half the container)/32 809 ns 812 ns std::set<std::string>::erase(iterator, iterator) (erase half the container)/1024 21736 ns 21922 ns std::set<std::string>::erase(iterator, iterator) (erase half the container)/8192 135884 ns 133228 ns ``` Fixes #154650 |
Filter
ldionne-old-macbook-results test results
| Run | Order | Start Time | Duration |
|---|---|---|---|
| Current | 551003 | 2025-12-16T16:40:01 | 0:00:00 |
| Previous | 550845 | 2025-12-16T16:40:01 | 0:00:00 |
| Baseline | 485288 | 2025-12-16T16:40:01 | 0:00:00 |
Tests Summary
| Status Group | # | # (B) |
|---|---|---|
| Performance Regressions | 2 | 0 |
| Added Tests | 0 | 16 |
| Unchanged Tests | 83 | 69 |
| Total Tests | 85 |
| Performance Regressions - execution_time | Δ | Previous | Current | σ | Δ (B) | σ (B) |
|---|---|---|---|---|---|---|
| 710_omnetpp_r | 2.79% | 8.481 | 8.718 | - | 0.00% | - |
| 707_ntest_r | 1.52% | 17.879 | 18.151 | - | 0.00% | - |
| Added Tests - execution_time |
|---|
| 706_stockfish_r |
| 707_ntest_r |
| 709_cactus_r |
| 710_omnetpp_r |
| 721_gcc_r |
| 723_llvm_r |
| 727_cppcheck_r |
| 729_abc_r |
| 731_astcenc_r |
| 734_vpr_r |
| 736_ocio_r |
| 737_gmsh_r |
| 748_flightdm_r |
| 750_sealcrypto_r |
| 753_ns3_r |
| 766_femflow_r |
Report Time: 0.11s