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  2. Slab allocation - Wikipedia

    en.wikipedia.org/wiki/Slab_allocation

    For example, objects that are at least 1/8 of the page size for a given machine may benefit from a "large slab" size, with explicit free lists, while smaller objects may use a "small slab" setup, embed the free list tracking. Bonwick's original presentation of the slab allocator already made the distinction of layouts for large and small slabs. [1]

  3. Free list - Wikipedia

    en.wikipedia.org/wiki/Free_list

    A free list (or freelist) is a data structure used in a scheme for dynamic memory allocation. It operates by connecting unallocated regions of memory together in a linked list, using the first word of each unallocated region as a pointer to the next. It is most suitable for allocating from a memory pool, where all objects have the same size.

  4. Region-based memory management - Wikipedia

    en.wikipedia.org/wiki/Region-based_memory_management

    The current block maintains a pointer to the next free position in the block, and if the block is filled, a new one is allocated and added to the list. When the region is deallocated, the next-free-position pointer is reset to the beginning of the first block, and the list of blocks can be reused for the next allocated region.

  5. Memory pool - Wikipedia

    en.wikipedia.org/wiki/Memory_pool

    The application can allocate, access, and free blocks represented by handles at run time. Many real-time operating systems use memory pools, such as the Transaction Processing Facility . Some systems, like the web server Nginx , use the term memory pool to refer to a group of variable-size allocations which can be later deallocated all at once.

  6. Buddy memory allocation - Wikipedia

    en.wikipedia.org/wiki/Buddy_memory_allocation

    The following is an example of what happens when a program makes requests for memory. Assume that in this system, the smallest possible block is 64 kilobytes in size, and the upper limit for the order is 4, which results in a largest possible allocatable block, 2 4 times 64 K = 1024 K in size.

  7. Manual memory management - Wikipedia

    en.wikipedia.org/wiki/Manual_memory_management

    In computer science, manual memory management refers to the usage of manual instructions by the programmer to identify and deallocate unused objects, or garbage.Up until the mid-1990s, the majority of programming languages used in industry supported manual memory management, though garbage collection has existed since 1959, when it was introduced with Lisp.

  8. Stride of an array - Wikipedia

    en.wikipedia.org/wiki/Stride_of_an_array

    In computer programming, the stride of an array (also referred to as increment, pitch or step size) is the number of locations in memory between beginnings of successive array elements, measured in bytes or in units of the size of the array's elements. The stride cannot be smaller than the element size but can be larger, indicating extra space ...

  9. Bin packing problem - Wikipedia

    en.wikipedia.org/wiki/Bin_packing_problem

    In the first variant, called bin-packing with size-increasing fragmentation (BP-SIF), each item may be fragmented; overhead units are added to the size of every fragment. In the second variant, called bin-packing with size-preserving fragmentation ( BP-SPF ) each item has a size and a cost; fragmenting an item increases its cost but does not ...

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