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#include <string.h>
#include <benchmark/benchmark.h>
#include "google/protobuf/descriptor.upb.h"
#include "google/protobuf/descriptor.upbdefs.h"
upb_strview descriptor = google_protobuf_descriptor_proto_upbdefinit.descriptor;
/* A buffer big enough to parse descriptor.proto without going to heap. */
char buf[65535];
static void BM_ArenaOneAlloc(benchmark::State& state) {
for (auto _ : state) {
upb_arena* arena = upb_arena_new();
upb_arena_malloc(arena, 1);
upb_arena_free(arena);
}
}
BENCHMARK(BM_ArenaOneAlloc);
static void BM_ArenaInitialBlockOneAlloc(benchmark::State& state) {
for (auto _ : state) {
upb_arena* arena = upb_arena_init(buf, sizeof(buf), NULL);
upb_arena_malloc(arena, 1);
upb_arena_free(arena);
}
}
BENCHMARK(BM_ArenaInitialBlockOneAlloc);
static void BM_ParseDescriptorNoHeap(benchmark::State& state) {
size_t bytes = 0;
for (auto _ : state) {
upb_arena* arena = upb_arena_init(buf, sizeof(buf), NULL);
google_protobuf_FileDescriptorProto* set =
google_protobuf_FileDescriptorProto_parse(descriptor.data,
descriptor.size, arena);
if (!set) {
printf("Failed to parse.\n");
exit(1);
}
bytes += descriptor.size;
upb_arena_free(arena);
}
state.SetBytesProcessed(state.iterations() * descriptor.size);
}
BENCHMARK(BM_ParseDescriptorNoHeap);
static void BM_ParseDescriptor(benchmark::State& state) {
size_t bytes = 0;
for (auto _ : state) {
upb_arena* arena = upb_arena_new();
google_protobuf_FileDescriptorProto* set =
google_protobuf_FileDescriptorProto_parse(descriptor.data,
descriptor.size, arena);
if (!set) {
printf("Failed to parse.\n");
exit(1);
}
bytes += descriptor.size;
upb_arena_free(arena);
}
state.SetBytesProcessed(state.iterations() * descriptor.size);
}
BENCHMARK(BM_ParseDescriptor);
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