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#include <msgpack/unpack.hpp>
#include <msgpack/pack.hpp>
#include <string.h>
#include <sys/time.h>
#include <iostream>
#include <stdexcept>
#include <string>
static const unsigned int TASK_INT_NUM = 1<<24;
static const unsigned int TASK_STR_LEN = 1<<15;
//static const unsigned int TASK_INT_NUM = 1<<22;
//static const unsigned int TASK_STR_LEN = 1<<13;
static const char* TASK_STR_PTR;
class simple_timer {
public:
void reset() { gettimeofday(&m_timeval, NULL); }
void show_stat(size_t bufsz)
{
struct timeval endtime;
gettimeofday(&endtime, NULL);
double sec = (endtime.tv_sec - m_timeval.tv_sec)
+ (double)(endtime.tv_usec - m_timeval.tv_usec) / 1000 / 1000;
std::cout << sec << " sec" << std::endl;
std::cout << (double(bufsz)/1024/1024) << " MB" << std::endl;
std::cout << (bufsz/sec/1000/1000*8) << " Mbps" << std::endl;
}
private:
timeval m_timeval;
};
class simple_buffer {
public:
static const size_t DEFAULT_INITIAL_SIZE = 32*1024;//512*1024*1024*2;
simple_buffer(size_t initial_size = DEFAULT_INITIAL_SIZE) :
m_storage((char*)malloc(initial_size)),
m_allocated(initial_size),
m_used(0)
{
if(!m_storage) { throw std::bad_alloc(); }
}
~simple_buffer()
{
free(m_storage);
}
public:
inline void write(const char* buf, size_t len)
{
if(m_allocated - m_used < len) {
expand_buffer(len);
}
memcpy(m_storage + m_used, buf, len);
m_used += len;
}
void clear()
{
m_used = 0;
}
private:
void expand_buffer(size_t req)
{
size_t nsize = m_allocated * 2;
size_t at_least = m_used + req;
while(nsize < at_least) { nsize *= 2; }
char* tmp = (char*)realloc(m_storage, nsize);
if(!tmp) { throw std::bad_alloc(); }
m_storage = tmp;
m_allocated = nsize;
}
public:
size_t size() const { return m_used; }
const char* data() const { return m_storage; }
private:
char* m_storage;
size_t m_allocated;
size_t m_used;
};
void bench_msgpack_int()
{
simple_buffer buf;
simple_timer timer;
std::cout << "----" << std::endl;
std::cout << "pack integer" << std::endl;
timer.reset();
{
msgpack::packer<simple_buffer> pk(buf);
pk.pack_array(TASK_INT_NUM);
for(unsigned int i=0; i < TASK_INT_NUM; ++i) {
pk.pack_unsigned_int(i);
}
}
timer.show_stat(buf.size());
std::cout << "----" << std::endl;
std::cout << "unpack integer" << std::endl;
msgpack::zone z;
msgpack::object obj;
timer.reset();
{
obj = msgpack::unpack(buf.data(), buf.size(), z);
}
timer.show_stat(buf.size());
/*
std::cout << "----" << std::endl;
std::cout << "dynamic pack integer" << std::endl;
buf.clear();
timer.reset();
msgpack::pack(buf, obj);
timer.show_stat(buf.size());
*/
}
void bench_msgpack_str()
{
simple_buffer buf;
simple_timer timer;
std::cout << "----" << std::endl;
std::cout << "pack string" << std::endl;
timer.reset();
{
msgpack::packer<simple_buffer> pk(buf);
pk.pack_array(TASK_STR_LEN);
for(unsigned int i=0; i < TASK_STR_LEN; ++i) {
pk.pack_raw(TASK_STR_PTR, i);
}
}
timer.show_stat(buf.size());
std::cout << "----" << std::endl;
std::cout << "unpack string" << std::endl;
msgpack::zone z;
msgpack::object obj;
timer.reset();
{
obj = msgpack::unpack(buf.data(), buf.size(), z);
}
timer.show_stat(buf.size());
/*
std::cout << "----" << std::endl;
std::cout << "dynamic pack string" << std::endl;
buf.clear();
timer.reset();
msgpack::pack(buf, obj);
timer.show_stat(buf.size());
*/
}
int main(void)
{
char* str = (char*)malloc(TASK_STR_LEN);
memset(str, 'a', TASK_STR_LEN);
TASK_STR_PTR = str;
bench_msgpack_int();
bench_msgpack_str();
return 0;
}
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