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Daniel Lemire
2019-01-01 14:39:35 -05:00
parent c3e2ec1618
commit f1ee507bca
1 changed files with 56 additions and 0 deletions
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benchmark/parsingcompetition.cpp
+56
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@@ -1,8 +1,15 @@
#include "simdjson/jsonparser.h"
#ifndef _MSC_VER
#include <unistd.h>
#include "linux-perf-events.h"
#ifdef __linux__
#include <libgen.h>
#endif //__linux__
#endif // _MSC_VER
#include "benchmark.h"
// #define RAPIDJSON_SSE2 // bad for performance
// #define RAPIDJSON_SSE42 // bad for performance
#include "rapidjson/document.h"
@@ -130,6 +137,55 @@ int main(int argc, char *argv[]) {
sajson::mutable_string_view(p.size(), buffer))
.is_valid(),
true, memcpy(buffer, p.data(), p.size()), repeat, volume, !justdata);
#ifdef __linux__
if(!justdata) {
vector<int> evts;
evts.push_back(PERF_COUNT_HW_CPU_CYCLES);
evts.push_back(PERF_COUNT_HW_INSTRUCTIONS);
evts.push_back(PERF_COUNT_HW_BRANCH_MISSES);
evts.push_back(PERF_COUNT_HW_CACHE_REFERENCES);
evts.push_back(PERF_COUNT_HW_CACHE_MISSES);
LinuxEvents<PERF_TYPE_HARDWARE> unified(evts);
vector<unsigned long long> results;
vector<unsigned long long> stats;
results.resize(evts.size());
stats.resize(evts.size());
std::fill(stats.begin(), stats.end(), 0);// unnecessary
for(size_t i = 0; i < repeat; i++) {
unified.start();
if(json_parse(p, pj) != true) printf("bug\n");
unified.end(results);
std::transform (stats.begin(), stats.end(), results.begin(), stats.begin(), std::plus<unsigned long long>());
}
printf("simdjson: cycles %f instructions %f branchmisses %f cacheref %f cachemisses %f \n",
stats[0] * 1.0 / repeat, stats[1] * 1.0 / repeat, stats[2] * 1.0 / repeat, stats[3] * 1.0 / repeat, stats[4] * 1.0 / repeat );
std::fill(stats.begin(), stats.end(), 0);
for(size_t i = 0; i < repeat; i++) {
memcpy(buffer, p.data(), p.size());
buffer[p.size()] = '\0';
unified.start();
if(d.ParseInsitu<kParseValidateEncodingFlag>(buffer).HasParseError() != false) printf("bug\n");
unified.end(results);
std::transform (stats.begin(), stats.end(), results.begin(), stats.begin(), std::plus<unsigned long long>());
}
printf("RapidJSON: cycles %f instructions %f branchmisses %f cacheref %f cachemisses %f \n",
stats[0] * 1.0 / repeat, stats[1] * 1.0 / repeat, stats[2] * 1.0 / repeat, stats[3] * 1.0 / repeat, stats[4] * 1.0 / repeat );
std::fill(stats.begin(), stats.end(), 0);// unnecessary
for(size_t i = 0; i < repeat; i++) {
memcpy(buffer, p.data(), p.size());
unified.start();
if(sajson::parse(sajson::bounded_allocation(ast_buffer, astbuffersize),
sajson::mutable_string_view(p.size(), buffer))
.is_valid() != true) printf("bug\n");
unified.end(results);
std::transform (stats.begin(), stats.end(), results.begin(), stats.begin(), std::plus<unsigned long long>());
}
printf("sajson: cycles %f instructions %f branchmisses %f cacheref %f cachemisses %f \n",
stats[0] * 1.0 / repeat, stats[1] * 1.0 / repeat, stats[2] * 1.0 / repeat, stats[3] * 1.0 / repeat, stats[4] * 1.0 / repeat );
}
#endif// __linux__
#ifdef ALLPARSER
std::string json11err;