1. A computer system for facilitating management of memory heaps, said computer system comprising: a memory; and a processor in communication with the memory, wherein the computer system is configured to perform a method, said method comprising: allocating objects in a memory heap, the memory heap comprising a plurality of heap sections, and wherein one or more heap sections of the plurality of heap sections comprise a plurality of groups, the plurality of groups defined such that groups include objects of particular types, a particular type being defined based on frequency of reference of the objects within a group, and wherein the allocating comprises: selecting a heap section of the plurality of heap sections of the memory heap to be a selected heap section to receive an object to be placed in the memory heap, wherein the selecting comprises: determining whether at least one group of a selected particular type in a chosen heap section has space for the object: selecting the chosen heap section as the selected heap section, based on the at least one group of the selected particular type in the chosen heap section having space for the object; and selecting another heap section as the selected heap section based on determining the at least one group of the selected particular type in the chosen heap section lacks space for the object; and selecting one group of the at least one group of the selected heap section in which to include the object; selecting one heap section of the memory heap to be examined for garbage collection, the one heap section comprising a plurality of groups; selecting one or more groups of the plurality of groups of the one heap section to be examined for garbage collection, the selecting being based on the particular type of the one or more groups; determining whether garbage collection is to be performed for the selected one or more groups; and performing garbage collection on the selected one or more groups based on the determining indicating garbage collection is to be performed for the selected one or more groups.