Timing Variation in Dual Loop Benchmarks

Benchmarks that measure time values using a standard system clock often employ a dual loop design. One of the important assumptions of this design is that textually identical loop statements will take the same amount of time to execute . This assumption was tested on two bare computers with Ada test...

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Bibliographic Details
Main Authors: Altman, Neal, Weiderman, Nelson
Format: Report
Language:English
Subjects:
ACCURACY
Ada programming language
CLOCKS
Computer benchmarks
Computer Programming and Software
COMPUTER PROGRAMS
COMPUTERS
DIGITAL COMPUTERS
LOOPS
Microvax 2 computers
MVME computers
PERFORMANCE(ENGINEERING)
TEST METHODS
TIME
VALIDATION
VARIATIONS
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Summary:Benchmarks that measure time values using a standard system clock often employ a dual loop design. One of the important assumptions of this design is that textually identical loop statements will take the same amount of time to execute . This assumption was tested on two bare computers with Ada test programs and has been demonstrated to be inaccurate in these specific test cases. Keywords: Validation; Variations; Accuracy. (Author)