Memory Management Reference

Memory Management Glossary | Memory Management Glossary: A »

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Memory Management Glossary

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absolute address activation frame activation record activation stack active address address space address space layout randomization address translation cache address-ordered first fit aging space algebraic data type alignment alive allocate allocation frame allocation mechanism allocation pattern allocation point allocation point protocol allocation policy allocation strategy allocator ambiguous reference ambiguous root arena arena class ASLR assertion asynchronous garbage collector ATC atomic object automatic memory management automatic storage duration

backing store barrier(1) barrier(2) barrier hit base pointer best fit BIBOP big bag of pages binary buddies bit array bit table bit vector bitmap bitmapped fit bitmask bitset black blacklisting black-listing block bounds error boxed break-table brk broken heart bucket buddy system buffer bus error byte(1) byte(2) byte(3) byte(4)

C89 C90 C99 cache(1) cache(2) cache memory cache policy caching(3) cactus stack card card marking cell Cheney collector Cheney scan clamped state client arena client object client pointer client program closure coalesce collect collection collection cycle collector(1) collector(2) color colour commit limit committed(1) committed(2) compactifying compaction composite object comprehensive concurrent garbage collection condemned set connected cons(1) cons(2) conservative garbage collection constant root constructor(1) constructor(2) continuation control stack cool copying garbage collection core creation space critical path crossing map cyclic data structure

dangling pointer data stack dead deallocate debugging pool deferred coalescing deferred reference counting dependent object derived pointer derived type destructor(1) destructor(2) DGC direct method dirty bit distributed garbage collection double buddies double free doubleword doubly weak hash table DRAM dynamic allocation dynamic extent dynamic memory dynamic RAM

ecru edge entry table(1) entry table(2) exact garbage collection exact reference exact root exact segregated fit execution stack exit table extent external fragmentation

fencepost fence post fencepost error fence post error Fibonacci buddies FIFO-ordered first fit file mapping finalization finalized block first fit fix flip floating garbage foreign code format format method formatted object forward method forwarding marker forwarding object forwarding pointer fragmentation frame free(1) free(2) free(3) free(4) free block free block chain free list free store freestore from space fromspace function pointer function record

garbage garbage collection garbage collector GB GC General Protection Fault generation generation chain generation scavenging generational garbage collection generational hypothesis gigabyte good fit GPF grain graph gray grey gray list grey list

handle header heap heap allocation hit hit rate hot huge page

immediate data immune set immutable immutable object in-band header in parameter in/out parameter incremental garbage collection incremental update indefinite extent indexed fit indirect method infant mortality inline allocation(1) inline allocation(2) inter-generational pointer interior pointer internal fragmentation invalid page fault inverted page table inverted page-table is-forwarded method

kB keyword argument kilobyte

large object area large page leaf object leak life lifetime LIFO-ordered first fit limited-field reference count linear addressing live load locality of reference location location dependency lock free logical address longword

machine word main memory malloc manual memory management mapped mapping mark-compact mark-sweep mark-and-sweep marking MB megabyte memoization memory(1) memory(2) memory(3) memory(4) memory bandwidth memory cache memory hierarchy memory leak memory location memory management Memory Management Unit memory manager memory mapping memory protection message message queue message type misaligned miss miss rate mmap MMU mostly-copying garbage collection mostly-exact garbage collection mostly-precise garbage collection moving garbage collector moving memory manager mutable mutator

nailing natural alignment nepotism next fit new space newspace node non-moving garbage collector non-moving memory manager nursery generation nursery space

object object format object pointer off-white old space oldspace one-bit reference count opaque type out parameter out-of-band header overcommit overwriting error

padding padding method padding object page page fault page marking page protection page table paged in paged out paging palimpsest parallel garbage collection parked state perfect fit phantom reachable phantomly reachable phantom reference physical address physical address space physical memory(1) physical memory(2) physical storage pig in the python pig in the snake pinning placement policy platform plinth pointer pool pool class precise garbage collection precise reference precise root premature free premature promotion premature tenuring primary storage promotion protectable root protection protection exception protection fault protection violation

quadword

RAM random access memory ramp allocation rank rash raw reachable read barrier read fault read-only memory real memory(1) real memory(2) reclaim recycle reference reference counting reference object region inference register register set partitioning relocation remembered set remote reference replicating garbage collector reserved resident resident set result code resurrection ROM root root description root mode root set

sbrk scalar data type scan scan method scan state scavenging garbage collection SDRAM segmentation violation segmented addressing segregated allocation cache segregated fit segregated free list segregated free-list semi-conservative garbage collection semi-space semi-space collector sequential fit sequential store buffer shared memory simple object simple segregated storage size size class skip method smart pointer snap-out snapshot at the beginning soft reference softly reachable space leak spare commit limit spare committed memory spaghetti stack splat split SRAM SSB stack stack allocation stack frame stack record static allocation static memory(1) static memory(2) static object static RAM static storage duration stepper function sticky reference count stop-and-copy collection storage storage hierarchy storage level storage management store(1) store(2) stretchy vector strict segregated fit strong reference strong root strong tri-color invariant strong tri-colour invariant strong tricolor invariant strong tricolour invariant strongly reachable suballocator subgraph superpage sure reference swap space swapped in swapped out swapping sweeping synchronous garbage collector

tabling tag tagged architecture tagged reference TB(1) TB(2) telemetry filter telemetry label telemetry stream tenuring terabyte termination thrash thread threatened set TLB to space tospace trace tracing garbage collection translation buffer translation lookaside buffer transparent alias transparent type transport transport snap-out treadmill tri-color invariant tri-colour invariant tricolor invariant tricolour invariant tri-color marking tri-colour marking tricolor marking tricolour marking two-space collector two space collector type-accurate garbage collection type punning

unaligned unboxed unclamped state undead unmapped unreachable unsure reference unwrapped use after free

value object variety vector data type virtual address virtual address space virtual memory virtual memory arena visitor function VM(1) VM(2)

weak-key hash table weak-value hash table weak hash table weak reference(1) weak reference(2) weak root weak tri-color invariant weak tri-colour invariant weak tricolor invariant weak tricolour invariant weakly reachable weighted buddies weighted reference counting white word working set worst fit wrapped wrapper write barrier write fault

ZCT zero count table