Is Automatic 'Folding' of Programs Efficient Enough To Displace Manual?

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Bibliographic Details
Title: Is Automatic 'Folding' of Programs Efficient Enough To Displace Manual?
Authors: Sayre, D.1
Source: Communications of the ACM. Dec1969, Vol. 12 Issue 12, p656-660. 5p.
Subjects: Computer programming, Paging (Computer science), Computer software, Computer systems, Computer storage devices
Abstract: The operation of "folding" a program into the available memory is discussed. Measurements by Brawn et al. and by Nelson on an automatic folding mechanism of simple design, a demand paging unit built at the IBM Research Center by Belady, Nelson, O'Neill, and others, permitting its quality to be compared with that of manual folding, are discussed, and it is shown that given some care in use the unit performs satisfactorily under the conditions tested, even though it is operating across a memory-to-storage interface with a very large speed difference. The disadvantages of prefolding, which is required when the folding is manual, are examined, and a number of the important troubles which beset computing today are shown to arise from, or be aggravated by, this source. It is concluded that a folding mechanism will probably become a normal part of most computing 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.)
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  Data: Is Automatic 'Folding' of Programs Efficient Enough To Displace Manual?
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  Data: The operation of "folding" a program into the available memory is discussed. Measurements by Brawn et al. and by Nelson on an automatic folding mechanism of simple design, a demand paging unit built at the IBM Research Center by Belady, Nelson, O'Neill, and others, permitting its quality to be compared with that of manual folding, are discussed, and it is shown that given some care in use the unit performs satisfactorily under the conditions tested, even though it is operating across a memory-to-storage interface with a very large speed difference. The disadvantages of prefolding, which is required when the folding is manual, are examined, and a number of the important troubles which beset computing today are shown to arise from, or be aggravated by, this source. It is concluded that a folding mechanism will probably become a normal part of most computing 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:
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      – Type: doi
        Value: 10.1145/363626.363629
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      – Code: eng
        Text: English
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        PageCount: 5
        StartPage: 656
    Subjects:
      – SubjectFull: Computer programming
        Type: general
      – SubjectFull: Paging (Computer science)
        Type: general
      – SubjectFull: Computer software
        Type: general
      – SubjectFull: Computer systems
        Type: general
      – SubjectFull: Computer storage devices
        Type: general
    Titles:
      – TitleFull: Is Automatic 'Folding' of Programs Efficient Enough To Displace Manual?
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            NameFull: Sayre, D.
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            – D: 01
              M: 12
              Text: Dec1969
              Type: published
              Y: 1969
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              Value: 12
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              Value: 12
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