This technique of non-contiguous memory allocation reduces the wastage of memory which leads to internal and external fragmentation. This utilizes all the free memory space which is created by a different proces
The key point in the overflowing-into-the-next-object technique (and, really, the key point in any slab exploitation technique) is to get to a state where the allocator behavior is predictable. Speaking of the OpenSolaris slab allocator, the Magazine layer is anything but predictable. Magazines...
In some embodiments, the apparatus includes code that locks the allocated portion of the memory in response to the allocated portion consisting solely of contiguous memory addresses, and code that performs a memory diagnostic test on the allocated portion of the memory.Arnold S. Weksler...
Memory reuse is a technique that uses memory blocks allocated previously for new items instead of allocating new memory blocks. This approach can reduce the overhead for allocating and releasing memory, improving performance. The whole sliding window is usually divided into multiple blocks in order ...
Although the address space provided by sbrk()/brk() can be shrunk by passing a negative value to sbrk(), as a practical matter, free() does not implement that technique because it would necessitate reducing address space in the same order in which it was allocated....
In Linux each page frame is tracked by adescriptorandseveral flags. Together these descriptors track the entire physical memory in the computer; the precise state of each page frame is always known. Physical memory is managed with thebuddy memory allocationtechnique, hence a page frame isfreeif ...
Memory allocation.Memory optimization requires allocating memory in a way that's appropriate for the OS and applications using the memory. These strategies include static, dynamic, stack, heap and pool. For example, static allocation is when memory is known and allocated at compile time, and the...
On-Demand-Paging (ODP) is a technique to alleviate much of the shortcomings of memory registration. Applications no longer need to pin down the underlying physical pages of the address space, and track the validity of the mappings. Rather, the HCA requests the latest translations from the OS ...
The pointers in the original design using malloc() do not need to be rewritten to work with fixed sized elements. Fixed sized resources can be created and the existing pointer can simply be made to point to the fixed sized resource. This technique can prevent manual recoding of the existing...
Virtual memory is amemory managementtechnique where secondary memory can be used as if it were a part of the mainmemory. Virtual memory is a common technique used in a computer's operating system (OS) as it is effective at optimizing memory usage. ...