JPS57169988A - Working set managing system - Google Patents

Working set managing system

Info

Publication number
JPS57169988A
JPS57169988A JP56055886A JP5588681A JPS57169988A JP S57169988 A JPS57169988 A JP S57169988A JP 56055886 A JP56055886 A JP 56055886A JP 5588681 A JP5588681 A JP 5588681A JP S57169988 A JPS57169988 A JP S57169988A
Authority
JP
Japan
Prior art keywords
frame
working set
evaluation
managing system
mxi
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56055886A
Other languages
Japanese (ja)
Other versions
JPS6034143B2 (en
Inventor
Naoya Ono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56055886A priority Critical patent/JPS6034143B2/en
Publication of JPS57169988A publication Critical patent/JPS57169988A/en
Publication of JPS6034143B2 publication Critical patent/JPS6034143B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE:To reduce the overhead for working set re-evaluation by avoiding the re-evaluating to a set frame where the maximum number and the minimum number of the number of pages permitted to the working set frame are coincident. CONSTITUTION:Each frame of a working set (WS) frame block 1 is provided with a field storing the maximum and minimum numbers (MXi and MNi) of the page number, and the WS re-evaluation is skipped for the WS frame where the numbers MXi and MNi are coincident at a comparison circuit 7. Thus, the overhead for the WS re-evaluation can be reduced in the WS managing system.
JP56055886A 1981-04-14 1981-04-14 Working set management method Expired JPS6034143B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56055886A JPS6034143B2 (en) 1981-04-14 1981-04-14 Working set management method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56055886A JPS6034143B2 (en) 1981-04-14 1981-04-14 Working set management method

Publications (2)

Publication Number Publication Date
JPS57169988A true JPS57169988A (en) 1982-10-19
JPS6034143B2 JPS6034143B2 (en) 1985-08-07

Family

ID=13011578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56055886A Expired JPS6034143B2 (en) 1981-04-14 1981-04-14 Working set management method

Country Status (1)

Country Link
JP (1) JPS6034143B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0465416B2 (en) * 1983-05-11 1992-10-20 Hitachi Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0465416B2 (en) * 1983-05-11 1992-10-20 Hitachi Ltd

Also Published As

Publication number Publication date
JPS6034143B2 (en) 1985-08-07

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