Program, control method, and control device
OwnerKenichi Hashimotoinventor
Life of this patent
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Abstract
Provided is a program, control method, and control device that can shorten start-up time. Page table entry is rewritten for a Memory Management Unit (MMU) table, on a computer system equipped with an MMU, so that a page fault will occur at every page, for all the pages necessary for the operation of a software program. Upon start-up, the stored memory image is loaded in page units for page faults that have occurred on the RAM to be accessed. Loading of unnecessary pages will not be executed, because such loading was executed, and the start-up time can be shortened worth that time. This program, control method, and control device can be applied to personal computers, and electronic devices equipped with built-in type computers.
Claims16
-6. (canceled)
A method of controlling the activation of software, the method enabling a processor having a function of managing memories to execute the steps of:
- rewriting page table entries for managing memories so that a page fault occurs at each physical page necessary for predetermined operations of predetermined software in the predetermined operation status;
- after the rewriting, storing memory images of the software in the predetermined operation status;
- and
- sequentially reading the pages at each of which the page fault has occurred by the page table entries for managing memories, when the software is activated.
A information processing device, comprising:
- memories, a processor having a function of managing the memories, and program codes, the program codes enabling the processor to execute the steps of:
- rewriting page table entries for managing memories so that a page fault occurs at each physical page necessary for predetermined operations of predetermined software in the predetermined operation status;
- after the rewriting, storing memory images of the software in the predetermined operation status;
- and
- sequentially reading the pages at each of which the page fault has occurred by the page table entries for managing memories, when the software is activated.
A computer readable medium storing program codes, the program codes enabling a processor having a function of managing memories to execute the method of controlling the activation of software, the method comprising the steps of:
- rewriting page table entries for managing memories so that a page fault occurs at each physical page necessary for predetermined operations of predetermined software in the predetermined operation status;
- after the rewriting, storing memory images of the software in the predetermined operation status;
- and
- sequentially reading the pages at each of which the page fault has occurred by the page table entries for managing memories, when the software is activated.
Dependencies are inferred from the claim text.