protobuf

Protocol Buffers - Google's data interchange format (grpc依赖) https://developers.google.com/protocol-buffers/

Joshua Haberman 526e430794 I think this may have reached the optimization limit. ------------------------------------------------------------------------- Benchmark Time CPU Iterations ------------------------------------------------------------------------- BM_ArenaOneAlloc 21 ns 21 ns 32994231 BM_ArenaInitialBlockOneAlloc 6 ns 6 ns 116318005 BM_ParseDescriptorNoHeap 3028 ns 3028 ns 231138 2.34354GB/s BM_ParseDescriptor 3557 ns 3557 ns 196583 1.99498GB/s BM_ParseDescriptorProto2NoArena 33228 ns 33226 ns 21196 218.688MB/s BM_ParseDescriptorProto2WithArena 22863 ns 22861 ns 30666 317.831MB/s BM_SerializeDescriptorProto2 5444 ns 5444 ns 127368 1.30348GB/s BM_SerializeDescriptor 12509 ns 12508 ns 55816 580.914MB/s $ perf stat bazel-bin/benchmark --benchmark_filter=BM_ParseDescriptorNoHeap 2020-10-08 14:07:06 Running bazel-bin/benchmark Run on (72 X 3700 MHz CPU s) CPU Caches: L1 Data 32K (x36) L1 Instruction 32K (x36) L2 Unified 1024K (x36) L3 Unified 25344K (x2) ---------------------------------------------------------------- Benchmark Time CPU Iterations ---------------------------------------------------------------- BM_ParseDescriptorNoHeap 3071 ns 3071 ns 227743 2.31094GB/s Performance counter stats for 'bazel-bin/benchmark --benchmark_filter=BM_ParseDescriptorNoHeap': 1,050.22 msec task-clock # 0.978 CPUs utilized 4 context-switches # 0.004 K/sec 0 cpu-migrations # 0.000 K/sec 179 page-faults # 0.170 K/sec 3,875,796,334 cycles # 3.690 GHz 13,282,835,967 instructions # 3.43 insn per cycle 2,887,725,848 branches # 2749.627 M/sec 8,324,912 branch-misses # 0.29% of all branches 1.073924364 seconds time elapsed 1.042806000 seconds user 0.008021000 seconds sys Profile: 23.96% benchmark benchmark [.] upb_prm_1bt_max192b 22.44% benchmark benchmark [.] fastdecode_dispatch 18.96% benchmark benchmark [.] upb_pss_1bt 14.20% benchmark benchmark [.] upb_psv4_1bt 8.33% benchmark benchmark [.] upb_prm_1bt_max64b 6.66% benchmark benchmark [.] upb_prm_1bt_max128b 1.29% benchmark benchmark [.] upb_psm_1bt_max64b 0.77% benchmark benchmark [.] fastdecode_generic 0.55% benchmark [kernel.kallsyms] [k] smp_call_function_single 0.42% benchmark [kernel.kallsyms] [k] _raw_spin_lock_irqsave 0.42% benchmark benchmark [.] upb_psm_1bt_max256b 0.31% benchmark benchmark [.] upb_psb1_1bt 0.21% benchmark benchmark [.] upb_plv4_5bv 0.14% benchmark benchmark [.] upb_psb1_2bt 0.12% benchmark benchmark [.] decode_longvarint64 0.08% benchmark [kernel.kallsyms] [k] vsnprintf 0.07% benchmark [kernel.kallsyms] [k] _raw_spin_lock 0.07% benchmark benchmark [.] _upb_msg_new 0.06% benchmark ld-2.31.so [.] check_match		4 years ago
..
generator.cc	I think this may have reached the optimization limit.	4 years ago
generator.h	Added upb compiler written in C++ as a normal protoc plugin.	6 years ago
main.cc	Added upb compiler written in C++ as a normal protoc plugin.	6 years ago
message_layout.cc	Donate/steal from arena to accelerate decoding.	4 years ago
message_layout.h	Migrate std::unordered_map -> absl::flat_hash_map.	6 years ago