Performance of GCC 12 vs GCC 11 - laurynas-biveinis/unodb GitHub Wiki

commit

Filtered for unodb::db:

  • micro_benchmark_key_prefix: 7% slowdown (unpredictable_prepend_key_prefix) to 1% speedup (unpredictable_cut_key_prefix)
  • micro_benchmark_n4: 9% slowdown (full_n4_sequential_delete/100) to 12% speedup (n4_full_scan/100)
  • micro_benchmark_n16: 12% slowdown (full_n16_tree_full_scan/64) to 11% speedup (full_n16_tree_full_scan/32768)
  • micro_benchmark_n48: 4% slowdown (full_n48_tree_sequential_delete/32768) to 12% speedup (minimal_n48_tree_full_scan/6144)
  • micro_benchmark_n256: 18% slowdown (full_n256_tree_random_delete/196608) to 13% speedup (minimal_n256_tree_full_scan/4096)

Filtered for unodb::olc_db:

  • micro_benchmark_key_prefix: 2% slowdown (unpredictable_get_shared_length) to 3% speedup (unpredictable_leaf_key_prefix_split)
  • micro_benchmark_n4: 6% slowdown (full_n4_sequential_delete/4096) to 2% speedup (full_n4_random_insert/32768)
  • micro_benchmark_n16: 9% slowdown (full_n16_tree_random_delete/32768) to 2% speedup (grow_n4_to_n16_randomly/20)
  • micro_benchmark_n48: 3% slowdown (full_n48_tree_sequential_delete/192) to 2% speedup (n48_random_add/4096)
  • micro_benchmark_n256: 10% slowdown (grow_n48_to_n256_sequentially/8) to 3% speedup (grow_n48_to_n256_randomly/64)