[Boost-users] [ Interprocess ] Object allocation performance

It looks like this: MyType * pMy = my_segment->construct<MyType>(anonymous_instance)(); my_segment->destroy_ptr(pMy); Where *MyType* is some typical struct and *my_segment* is correctly constructed *boost::interprocess::managed_shared_memory ** is around 10 times slower than the equivalent: MyType * pMy = new MyType(); delete pMy; I did not expect this. I though the two allocation algorithms should be similar in implementation and performance. Is there some good reason for such a huge difference. Edit: The test was conducted over a huge number of iterations.