Data processing device in a virtual memory having a paging funct

Details Data processing device in a virtual memory having a paging funct Data processing device in a virtual memory having a paging funct

1993-10-07

1996-12-24

Chan, Eddie P.

395486, G06F 1206

Patent

active

055881351

ABSTRACT:
A data processing device carries out a paging method used when a virtual memory methods is employed. First, among the pages stored in a main memory, flag is set in a page which has been referred to. The flag is examined at equal time intervals and the elapse time after the page was last referred to is measured. The elapsed time is summarized for the entire pages and the number of pages having the same elapsed time is counted. Calculation is carried out in advance to know up to which page group are to be paged out starting with the page group with the longest elapsed time to satisfy the number of pages requested by a CPU when a page fault occurs. The reference elapsed time thus calculated and the elapsed time of each page are compared and pages with elapsed times longer than the reference are paged out.

REFERENCES:
patent: 4035778 (1977-07-01), Ghanem
patent: 5155834 (1992-10-01), Ryan et al.

Affiliated with

Also associated with

Rating

Data processing device in a virtual memory having a paging funct does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data processing device in a virtual memory having a paging funct, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data processing device in a virtual memory having a paging funct will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1185163