Memory Object commands are applicable only to hardware counter experiments where memoryspace data was recorded, either by default or explicitly for precise counters on either Solaris x86 or SPARC systems.. See the collect(1) man page for more information.
Memory Objects are components in the memory subsystem, such as cache-lines, pages, memory-banks, etc. The object is determined from an index computed from the virtual and/or physical address as recorded. Memory objects are predefined for virtual and physical pages, for sizes of 8KB, 64KB, 512KB, and 4 MB. You can define others with the memobj_define command.