#3783 build txn commit refs[t:3783]

// run txn begin commit on multiple threads and measure the throughput

#include "toku_portability.h"

#include <stdio.h>

#include <stdlib.h>

#include <stdbool.h>

#include <unistd.h>

#include <assert.h>

#include <string.h>

#include <sys/time.h>

#include "db.h"

#include "toku_portability.h"

#include "toku_pthread.h"

static double now(void) {