Patent US6412053B2 successfully refreshed from Google Patents.
← Back to Patent Explorer
US6412053B2 Expired / Lapsed US ⏱️ 0.0 years remaining

System method and apparatus for providing linearly scalable dynamic memory management in a multiprocessing system

Assignee: Hewlett Packard Development Co LP
•
Filing: 1998-08-26
•
Granted: 2002-06-25
•
Expires: 2018-08-26
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A system and method for dynamically allocating memory in a computer system at the application level. The application examines a heap data structure and a free list, identifies an unallocated region of memory that is appropriately sized, and allocates the memory to the application. The application deallocates a memory region by placing the memory region in the free list and modifying the heap data structure.

Inventors

  • 👤 Thomas J. Bonola

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 19:59
CPC Classifications
G; G06; G06F; G06F12/00; G06F12/02; G06F12/0223; G06F12/023

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 208 words
In a computer system comprising an operating system, a plurality of application programs, and system memory, a method for allocating the system memory to the plurality of application programs, said method comprising the steps of: executing an executable instruction within a first application program of a plurality of application programs, such that the first application program accesses a heap data structure and a free list, wherein the heap data structure and the free list comprise a concurrent non-blocking queue; executing an executable instruction within a second application program of the plurality of application programs, such that the second application program accesses the heap data structure and the free list, the second application program accessing the heap data structure and the free list concurrently with the first application program to request a respective request amount of system memory for allocation to the first and second application programs; identifying, based on the heap data structure and the free list, available portions of system memory, each of the available portions comprising at least the respective requested amount of system memory for each of the first and the second application programs; and allocating the respective requested amounts of system memory within the available portions to the first and the second application programs.
Claim 2
Dependent Claim 208 words
In a computer system comprising an operating system, a plurality of application programs, and system memory, a method for allocating the system memory to the plurality of application programs, said method comprising the steps of: executing an executable instruction within a first application program of a plurality of application programs, such that the first application program accesses a heap data structure and a free list, wherein the heap data structure and the free list comprise a concurrent non-blocking queue; executing an executable instruction within a second application program of the plurality of application programs, such that the second application program accesses the heap data structure and the free list, the second application program accessing the heap data structure and the free list concurrently with the first application program to request a respective request amount of system memory for allocation to the first and second application programs; identifying, based on the heap data structure and the free list, available portions of system memory, each of the available portions comprising at least the respective requested amount of system memory for each of the first and the second application programs; and allocating the respective requested amounts of system memory within the available portions to the first and the second application programs.
Claim 3
Dependent Claim 155 words
In a computer system comprising an operating system, a first application program and a second application program, and system memory, a system for allocating said system memory to the first and second application programs comprising: a heap data structure for listing a size of at least one unallocated portion of the system memory; a free list for listing at least one address of the at least one unallocated portion of the system memory, wherein the heap data structure and the free list comprise a concurrent non-blocking queue; and an executive instruction within the first and second application programs for accessing the free list and the heap data structure by the first and the second application programs, wherein the first application program accesses the free list and the heap data structure concurrently with the second application program to request a respective requested amount of the system memory for allocation to the first and second application programs.
Claim 4
Dependent Claim 155 words
In a computer system comprising an operating system, a first application program and a second application program, and system memory, a system for allocating said system memory to the first and second application programs comprising: a heap data structure for listing a size of at least one unallocated portion of the system memory; a free list for listing at least one address of the at least one unallocated portion of the system memory, wherein the heap data structure and the free list comprise a concurrent non-blocking queue; and an executive instruction within the first and second application programs for accessing the free list and the heap data structure by the first and the second application programs, wherein the first application program accesses the free list and the heap data structure concurrently with the second application program to request a respective requested amount of the system memory for allocation to the first and second application programs.

References Cited (Backward Citations)

US5561786A Cited
US5809554A Cited
US5784699A Cited
US5949972A Cited
US6047280A Cited
US5930827A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2005-06-24 2005-12-24 2006-06-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2009-06-24 2009-12-24 2010-06-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2013-06-24 2013-12-24 2014-06-25 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag