Effect of annotating pmr_allocate with __attribute__((malloc,returns_nonnull)) - laurynas-biveinis/unodb GitHub Wiki

baseline commit, patch

• micro_benchmark_node4 --benchmark_filter=insert.*unodb::db: 2% slowdown (minimal_node4_random_insert<unodb::db>/64) to 0%
• micro_benchmark_node16 --benchmark_filter=(grow|add).*unodb::db: 1% slowdown (grow_node4_to_node16_randomly<unodb::db>/20) to 10% speedup (node16_sequential_add<unodb::db>/16383)
• micro_benchmark_node48 --benchmark_filter=(grow|add).*unodb::db: 1% slowdown (grow_node16_to_node48_randomly<unodb::db>/8) to 2% speedup (grow_node16_to_node48_sequentially<unodb::db>/4096)
• micro_benchmark_node256 --benchmark_filter=(grow|add).*unodb::db: 3% slowdown (node256_sequential_add<unodb::db>/512) to 6% speedup (grow_node48_to_node256_sequentially<unodb::db>/512)