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https://github.com/simdjson/simdjson
synced 2026-06-08 17:27:07 +00:00
strager
5510089d45
* Rename simdjson_really_inline -> simdjson_inline I want to change the simdjson_really_inline macro to sometimes not force inlining. After that upcoming change, the name simdjson_really_inline will no longer makes sense. Rename simdjson_really_inline to simdjson_inline. This patch should not change semantics; simdjson_inline still forces inlining as before. Some functions still need to be really inlined for ABI reasons. (GCC's -Wpsabi complains otherwise.) Leave those functions marked as simdjson_really_inline. * Improve build times for debug builds simdjson_inline is used for most simdjson functions. It forces inlining. In unoptimized/debug builds, this can lead to a lot of machine code being generated (especially with Address Sanitizer), causing slow compilation. Change simdjson_inline to force inlining only for optimized builds. Sometimes, the programmer might want a slightly-optimized build and want fast compilation (e.g. GCC's -Og mode). Allow simdjson users to define the simdjson_inline macro themselves (e.g. on the command line: -Dsimdjson_inline=inline) in cases where the default behavior is undesired. This patch reduced build times by over 75% for ondemand_object_tests.cpp with GCC 9.4.0 and CMAKE_BUILD_TYPE=Debug on my AMD 5950X: Before: 6.885 6.683 6.971 6.957 6.949 seconds (5 samples) After: 1.492 1.551 1.494 1.490 1.531 seconds (5 samples)
49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
#pragma once
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#include "json_benchmark/file_runner.h"
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namespace json2msgpack {
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using namespace json_benchmark;
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template <typename I> struct runner : public file_runner<I> {
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std::string_view result;
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std::unique_ptr<char[]> buffer;
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bool setup(benchmark::State &state) {
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bool isok = this->load_json(state, TWITTER_JSON);
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if (isok) {
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// Let us allocate a sizeable buffer.
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buffer = std::unique_ptr<char[]>(new char[this->json.size() * 4 + 1024]);
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}
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return isok;
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}
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bool before_run(benchmark::State &state) {
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if (!file_runner<I>::before_run(state)) {
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return false;
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}
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// Clear the buffer.
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::memset(buffer.get(), 0, this->json.size() * 4 + 1024);
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return true;
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}
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bool run(benchmark::State &) {
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return this->implementation.run(this->json, buffer.get(), result);
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}
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template <typename R>
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bool diff(benchmark::State &state, runner<R> &reference) {
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return diff_results(state, result.size(), reference.result.size(), diff_flags::NONE);
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}
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};
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struct simdjson_ondemand;
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template <typename I>
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simdjson_inline static void json2msgpack(benchmark::State &state) {
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run_json_benchmark<runner<I>, runner<simdjson_ondemand>>(state);
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}
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} // namespace json2msgpack
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