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#ifndef H_BENCH
#define H_BENCH
#include "framework/DynamicExtension.h"
#include "shard/WSS.h"
#include <cstdlib>
#include <cstdio>
#include <chrono>
#include <algorithm>
#include <numeric>
#include <memory>
#include <iostream>
#include <fstream>
#include <sstream>
#include <unordered_set>
#include <set>
#include <string>
#include <random>
typedef uint64_t key_type;
typedef uint32_t value_type;
typedef uint64_t weight_type;
typedef de::WeightedRecord<key_type, value_type, weight_type> WRec;
typedef de::DynamicExtension<WRec, de::WSS<WRec>, de::WSSQuery<WRec>> ExtendedWSS;
static gsl_rng *g_rng;
static std::set<WRec> *g_to_delete;
static bool g_osm_data;
static key_type g_min_key = UINT64_MAX;
static key_type g_max_key = 0;
static size_t g_max_record_cnt = 0;
static size_t g_reccnt = 0;
static constexpr unsigned int DEFAULT_SEED = 0;
static unsigned int get_random_seed()
{
unsigned int seed = 0;
std::fstream urandom;
urandom.open("/dev/urandom", std::ios::in|std::ios::binary);
urandom.read((char *) &seed, sizeof(seed));
urandom.close();
return seed;
}
static key_type osm_to_key(const char *key_field) {
double tmp_key = (atof(key_field) + 180) * 10e6;
return (key_type) tmp_key;
}
static void init_bench_rng(unsigned int seed, const gsl_rng_type *type)
{
g_rng = gsl_rng_alloc(type);
gsl_rng_set(g_rng, seed);
}
static void init_bench_env(size_t max_reccnt, bool random_seed, bool osm_correction=true)
{
unsigned int seed = (random_seed) ? get_random_seed() : DEFAULT_SEED;
init_bench_rng(seed, gsl_rng_mt19937);
g_to_delete = new std::set<WRec>();
g_osm_data = osm_correction;
g_max_record_cnt = max_reccnt;
g_reccnt = 0;
}
static void delete_bench_env()
{
gsl_rng_free(g_rng);
delete g_to_delete;
}
static bool next_record(std::fstream *file, WRec *record)
{
if (g_reccnt >= g_max_record_cnt) return false;
std::string line;
if (std::getline(*file, line, '\n')) {
std::stringstream line_stream(line);
std::string key_field;
std::string value_field;
std::string weight_field;
std::getline(line_stream, value_field, '\t');
std::getline(line_stream, key_field, '\t');
std::getline(line_stream, weight_field, '\t');
record->key = (g_osm_data) ? osm_to_key(key_field.c_str()) : atol(key_field.c_str());
record->value = atol(value_field.c_str());
record->weight = atof(weight_field.c_str());
if (record->key < g_min_key) g_min_key = record->key;
if (record->key > g_max_key) g_max_key = record->key;
g_reccnt++;
return true;
}
return false;
}
static bool build_insert_vec(std::fstream *file, std::vector<WRec> &vec, size_t n) {
vec.clear();
for (size_t i=0; i<n; i++) {
WRec rec;
if (!next_record(file, &rec)) {
if (i == 0) {
return false;
}
break;
}
vec.emplace_back(rec);
}
return true;
}
/*
* helper routines for displaying progress bars to stderr
*/
static const char *g_prog_bar = "======================================================================";
static const size_t g_prog_width = 50;
static void progress_update(double percentage, std::string prompt) {
int val = (int) (percentage * 100);
int lpad = (int) (percentage * g_prog_width);
int rpad = (int) (g_prog_width - lpad);
fprintf(stderr, "\r(%3d%%) %20s [%.*s%*s]", val, prompt.c_str(), lpad, g_prog_bar, rpad, "");
fflush(stderr);
if (percentage >= 1) fprintf(stderr, "\n");
}
static bool warmup(std::fstream *file, ExtendedWSS *extended_wss, size_t count, double delete_prop, bool progress=true)
{
size_t del_buf_size = 10000;
size_t delete_idx = del_buf_size;
std::vector<WRec> delbuf;
std::set<WRec> deleted_keys;
de::wss_query_parms<WRec> parms;
parms.rng = g_rng;
parms.sample_size = del_buf_size;
size_t inserted = 0;
double last_percent = 0;
for (size_t i=0; i<count; i++) {
WRec rec;
if (!next_record(file, &rec)) {
return false;
}
inserted++;
extended_wss->insert(rec);
if (delete_prop > 0 && i > extended_wss->get_buffer_capacity() && delete_idx >= delbuf.size()) {
delbuf = extended_wss->query(&parms);
delete_idx = 0;
deleted_keys.clear();
}
if (delete_prop > 0 && i > extended_wss->get_buffer_capacity() && gsl_rng_uniform(g_rng) < delete_prop && delete_idx < delbuf.size()) {
auto rec = delbuf[delete_idx];
delete_idx++;
if (deleted_keys.find(rec) == deleted_keys.end()) {
extended_wss->erase(rec);
deleted_keys.insert(rec);
}
}
if (progress && ((double) i / (double) count) - last_percent > .01) {
progress_update((double) i / (double) count, "warming up:");
last_percent = (double) i / (double) count;
}
}
if (progress) {
progress_update(1, "warming up:");
}
return true;
}
static void reset_de_perf_metrics() {
/*
* rejection counters are zeroed automatically by the
* sampling function itself.
*/
RESET_IO_CNT();
}
#endif // H_BENCH
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