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libragephoto: add benchmark to C implementation

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CMakeLists.txt: update RAGEPHOTO_BENCHMARK description
RagePhoto.c: add benchmark
RagePhoto.cpp: change benchmark clock from
std::chrono::high_resolution_clock to std::chrono::steady_clock
This commit is contained in:
Syping 2023-12-10 07:57:15 +01:00
parent 6046b7213a
commit 1b7b3c977b
3 changed files with 20 additions and 3 deletions
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2
CMakeLists.txt
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@ -69,7 +69,7 @@ else()
endif()
# RagePhoto Benchmark
option(RAGEPHOTO_BENCHMARK "Build with libragephoto benchmark (C++ only)" OFF)
option(RAGEPHOTO_BENCHMARK "Build with libragephoto benchmark" OFF)
# RagePhoto API
option(RAGEPHOTO_C_API "Build libragephoto with C API support" ON)

17
src/core/RagePhoto.c
View file

@ -22,6 +22,10 @@
#include <stdio.h>
#include <string.h>
#ifdef RAGEPHOTO_BENCHMARK
#include <time.h>
#endif
#if defined(UNICODE_ICONV)
#include <iconv.h>
#elif defined(UNICODE_WINCVT)
@ -217,6 +221,11 @@ RagePhotoData* ragephoto_getphotodata(ragephoto_t instance_t)
bool ragephotodata_load(RagePhotoData *rp_data, RagePhotoFormatParser *rp_parser, const char *data, size_t length)
{
#ifdef RAGEPHOTO_BENCHMARK
struct timespec benchmark_parse_start;
clock_gettime(CLOCK_MONOTONIC, &benchmark_parse_start);
#endif
// Avoid data conflicts
ragephotodata_clear(rp_data);
@ -522,6 +531,14 @@ bool ragephotodata_load(RagePhotoData *rp_data, RagePhotoFormatParser *rp_parser
return false;
}
#ifdef RAGEPHOTO_BENCHMARK
struct timespec benchmark_parse_end;
clock_gettime(CLOCK_MONOTONIC, &benchmark_parse_end);
const uint64_t benchmark_ns = (UINT64_C(1000000000) * benchmark_parse_end.tv_sec + benchmark_parse_end.tv_nsec) -
(UINT64_C(1000000000) * benchmark_parse_start.tv_sec + benchmark_parse_start.tv_nsec);
printf("Benchmark: %" PRIu64 "ns\n", benchmark_ns);
#endif
#ifdef RAGEPHOTO_DEBUG
printf("header: %s\n", rp_data->header);
printf("headerSum: %" PRIu32 "\n", rp_data->headerSum);

4
src/core/RagePhoto.cpp
View file

@ -219,7 +219,7 @@ RagePhotoData* RagePhoto::data()
bool RagePhoto::load(const char *data, size_t length, RagePhotoData *rp_data, RagePhotoFormatParser *rp_parser)
{
#ifdef RAGEPHOTO_BENCHMARK
auto benchmark_parse_start = std::chrono::high_resolution_clock::now();
auto benchmark_parse_start = std::chrono::steady_clock::now();
#endif
// Avoid data conflicts
@ -541,7 +541,7 @@ bool RagePhoto::load(const char *data, size_t length, RagePhotoData *rp_data, Ra
}
#ifdef RAGEPHOTO_BENCHMARK
auto benchmark_parse_end = std::chrono::high_resolution_clock::now();
auto benchmark_parse_end = std::chrono::steady_clock::now();
auto benchmark_ns = std::chrono::duration_cast<std::chrono::nanoseconds>(benchmark_parse_end - benchmark_parse_start);
std::cout << "Benchmark: " << benchmark_ns.count() << "ns" << std::endl;
#endif