Characteristics of Program Localities.
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| Title: | Characteristics of Program Localities. |
|---|---|
| Authors: | Madison, A. Wayne1, Batson, Alan P.1, Gaines, R.S. |
| Source: | Communications of the ACM. May76, Vol. 19 Issue 5, p285-294. 10p. 6 Charts, 9 Graphs. |
| Subjects: | ALGOL (Computer program language), Virtual storage (Computer science), Computer memory management, Computer software, Computer storage devices |
| Abstract: | The term "Locality" has been used to denote that subset of a program's segments which are referenced during a particular phase of its execution. A program's behavior can be characterized in terms of its residence in localities of various sizes and lifetimes, and the transitions between these localities. In this paper the concept of a locality is made more explicit through a formal definition of what constitutes a phase of localized reference behavior, and by a corresponding mechanism for the detection of localities in actual reference strings. This definition provides for the existence of a hierarchy of localities at any given time, and the reasonableness of the definition is supported by examples taken from actual programs. Empirical data from a sample of production Algol 60 programs is used to display distributions of Locality sizes and lifetimes, and these results are discussed in terms of their implications for the modeling of program behavior and memory management in virtual memory systems. [ABSTRACT FROM AUTHOR] |
| Copyright of Communications of the ACM is the property of Association for Computing Machinery and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 5246488 AccessLevel: 6 PubType: Periodical PubTypeId: serialPeriodical PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Characteristics of Program Localities. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Madison%2C+A%2E+Wayne%22">Madison, A. Wayne</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Batson%2C+Alan+P%2E%22">Batson, Alan P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gaines%2C+R%2ES%2E%22">Gaines, R.S.</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Communications+of+the+ACM%22">Communications of the ACM</searchLink>. May76, Vol. 19 Issue 5, p285-294. 10p. 6 Charts, 9 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22ALGOL+%28Computer+program+language%29%22">ALGOL (Computer program language)</searchLink><br /><searchLink fieldCode="DE" term="%22Virtual+storage+%28Computer+science%29%22">Virtual storage (Computer science)</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+memory+management%22">Computer memory management</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+software%22">Computer software</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+storage+devices%22">Computer storage devices</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The term "Locality" has been used to denote that subset of a program's segments which are referenced during a particular phase of its execution. A program's behavior can be characterized in terms of its residence in localities of various sizes and lifetimes, and the transitions between these localities. In this paper the concept of a locality is made more explicit through a formal definition of what constitutes a phase of localized reference behavior, and by a corresponding mechanism for the detection of localities in actual reference strings. This definition provides for the existence of a hierarchy of localities at any given time, and the reasonableness of the definition is supported by examples taken from actual programs. Empirical data from a sample of production Algol 60 programs is used to display distributions of Locality sizes and lifetimes, and these results are discussed in terms of their implications for the modeling of program behavior and memory management in virtual memory systems. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Communications of the ACM is the property of Association for Computing Machinery and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1145/360051.360227 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 285 Subjects: – SubjectFull: ALGOL (Computer program language) Type: general – SubjectFull: Virtual storage (Computer science) Type: general – SubjectFull: Computer memory management Type: general – SubjectFull: Computer software Type: general – SubjectFull: Computer storage devices Type: general Titles: – TitleFull: Characteristics of Program Localities. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Madison, A. Wayne – PersonEntity: Name: NameFull: Batson, Alan P. – PersonEntity: Name: NameFull: Gaines, R.S. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May76 Type: published Y: 1976 Identifiers: – Type: issn-print Value: 00010782 Numbering: – Type: volume Value: 19 – Type: issue Value: 5 Titles: – TitleFull: Communications of the ACM Type: main |
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