Pre-Grant Publication Number: 20070118712
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Review this prior art and click on the thumbs up (or down) to indicate whether this submission should be forwarded to the USPTO.
If you login then you can add an annotation by typing in the box at the bottom of the screen to comment on the relevance of the prior art to the claims of the patent application.
Prior Art Detail
Summary / Description
| Summary / Description | Enhancements made to the NewBSD Operating System to improve system performance by sharing memory between processes. |
Basic Information
| Type of Prior Art | Print Publication |
| Publication Title * | The Design and Implementation of the UVM Virtual Memory System |
| Author | Charles D Cranor |
| ISBN | |
| Page Range | |
| Medium | Other printed publication |
| Publication Date * | July 24, 1998 |
| URL | |
Notes / To Do
| Notes | |
Excerpt
Excerpt (Page 15 Page Transfer) Allows pages of memory from the IO system, IPC system or other processes to be inserted easily into a process's address space.
(Page 16 Map entry passing) Allow processes and the kernel to dynamically exchange chunks of their virtual address space. |
Relevance
Claims
1
A method for allocating memory freed by applications in a computer system having an operating system (O/S), said method comprising:
a) designating a status of said one or more freed memory units previously associated with an application as available for reuse;
b) organizing one or more freed memory units having said available for reuse status into one or more free memory pools, wherein freed memory units in a pool are directly allocated to an application requiring backing physical memory store without the O/S deleting data in the freed memory units.
Relevance
Although this prior art is solving a slightly different problem, the mechanism is the same, that of mapping memory from the kernel into a variety of different processes to improve performance.
Although this prior art is solving a slightly different problem, the mechanism is the same, that of mapping memory from the kernel into a variety of different processes to improve performance.
Claim Chart
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