使用tcmalloc测试多线程分配对象
![]()
#include <boost/thread.hpp>
![]()
#include <boost/bind.hpp>
![]()
#include <boost/shared_ptr.hpp>
![]()
#include <boost/progress.hpp>
![]()
#include <vector>
![]()
![]()
![]()
template <int N>
![]()
class TestObjects
![]()
{
![]()
public:
![]()
![]()
![]()
private:
![]()
![]()
enum { size = N*1024};
![]()
![]()
char m_content[size];
![]()
![]()
};
![]()
![]()
template<int N>
![]()
void mallocobjectfunc()
![]()
{
![]()
typedef TestObjects<N> TObject;
![]()
int n = 0;
![]()
for(; n < 100 ; n++)
![]()
{
![]()
{
![]()
std::vector< boost::shared_ptr<TObject > > m_vobjc;
![]()
![]()
m_vobjc.reserve(10000);
![]()
![]()
int i = 0;
![]()
for(; i < 10000 ; i++)
![]()
{
![]()
boost::shared_ptr<TObject> p(new TObject);
![]()
m_vobjc.push_back(p);
![]()
}
![]()
![]()
}
![]()
}
![]()
}
![]()
![]()
![]()
int main()
![]()
{
![]()
//单线程测试
![]()
//测试小于32K 小对象
![]()
{
![]()
boost::progress_timer pt;
![]()
mallocobjectfunc<14>();
![]()
}
![]()
![]()
//测试大于32K 小对象
![]()
{
![]()
boost::progress_timer pt;
![]()
mallocobjectfunc<40>();
![]()
}
![]()
![]()
![]()
![]()
//多线程
![]()
//测试小于32K 小对象
![]()
{
![]()
boost::progress_timer pt;
![]()
![]()
boost::thread t1(boost::bind(&mallocobjectfunc<12>));
![]()
boost::thread t2(boost::bind(&mallocobjectfunc<12>));
![]()
boost::thread t3(boost::bind(&mallocobjectfunc<12>));
![]()
boost::thread t4(boost::bind(&mallocobjectfunc<12>));
![]()
boost::thread t5(boost::bind(&mallocobjectfunc<12>));
![]()
![]()
![]()
t1.join();
![]()
t2.join();
![]()
t3.join();
![]()
t4.join();
![]()
t5.join();
![]()
}
![]()
![]()
![]()
//测试大于32K 小对象
![]()
{
![]()
boost::progress_timer pt;
![]()
![]()
boost::thread t1(boost::bind(&mallocobjectfunc<35>));
![]()
boost::thread t2(boost::bind(&mallocobjectfunc<35>));
![]()
boost::thread t3(boost::bind(&mallocobjectfunc<35>));
![]()
boost::thread t4(boost::bind(&mallocobjectfunc<35>));
![]()
boost::thread t5(boost::bind(&mallocobjectfunc<35>));
![]()
![]()
![]()
t1.join();
![]()
t2.join();
![]()
t3.join();
![]()
t4.join();
![]()
t5.join();
![]()
}
![]()
![]()
return 0;
![]()
![]()
}
![]()
![]()
![]()
![]()
![]()
![]()
测试结果：
glibc tcmalloc
可见在多线程小内存申请，tcmalloc效率比glibc效率提高了13倍。
#include <boost/thread.hpp>#include <boost/bind.hpp>#include <boost/shared_ptr.hpp>#include <boost/progress.hpp>#include <vector>template <int N>class TestObjects
{
public: private:
enum { size = N*1024};
char m_content[size];
};template<int N>void mallocobjectfunc(){ typedef TestObjects<N> TObject; int n = 0; for(; n < 100 ; n++) { { std::vector< boost::shared_ptr<TObject > > m_vobjc; m_vobjc.reserve(10000); int i = 0; for(; i < 10000 ; i++) { boost::shared_ptr<TObject> p(new TObject); m_vobjc.push_back(p);
} } }}int main(){ //单线程测试 //测试小于32K 小对象 { boost::progress_timer pt; mallocobjectfunc<14>(); } //测试大于32K 小对象 { boost::progress_timer pt; mallocobjectfunc<40>(); } //多线程 //测试小于32K 小对象 { boost::progress_timer pt; boost::thread t1(boost::bind(&mallocobjectfunc<12>)); boost::thread t2(boost::bind(&mallocobjectfunc<12>)); boost::thread t3(boost::bind(&mallocobjectfunc<12>)); boost::thread t4(boost::bind(&mallocobjectfunc<12>)); boost::thread t5(boost::bind(&mallocobjectfunc<12>)); t1.join(); t2.join(); t3.join(); t4.join(); t5.join(); } //测试大于32K 小对象 { boost::progress_timer pt; boost::thread t1(boost::bind(&mallocobjectfunc<35>)); boost::thread t2(boost::bind(&mallocobjectfunc<35>)); boost::thread t3(boost::bind(&mallocobjectfunc<35>)); boost::thread t4(boost::bind(&mallocobjectfunc<35>)); boost::thread t5(boost::bind(&mallocobjectfunc<35>)); t1.join(); t2.join(); t3.join(); t4.join(); t5.join(); } return 0;}测试结果：
glibc tcmalloc
单线程小内存 2.46 s 0.96 s
单线程大内存 2.59 s 1.11 s
多线程小内存 104.96 s 7.77 s
多线程大内存 143.13 s 18.74 s
可见在多线程小内存申请，tcmalloc效率比glibc效率提高了13倍。