While profiling my application I found that a lot of time was being spent on the memory allocation and deallocation so I switched to tbb scalable allocator which helped a lot. I have not explicitly changed the code to allocate the memory through scalable allocator but I am linking my application with tbbmalloc_proxy.so library which is doing its job. But still, the profiling tool shows some red areas where I am inserting some data into a map.
So my questing is that, do I need to explicitly define custom memory allocator for map e.g
std::map<const key,T,scalable_allocator<std::pair<const Key, T>>
or just linking to the tbbmalloc_proxy.so library will do the job?