Practical Differential Profiling

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Comparing performance profiles from two runs is an essential performance analysis step that users routinely perform. In this work we present eGprof, a tool that facilitates these comparisons through differential profiling inside gprof. We chose this approach, rather than designing a new tool, since gprof is one of the few performance analysis tools accepted and used by a large community of users. eGprof allows users to 'subtract' two performance profiles directly. It also includes callgraph visualization to highlight the differences in graphical form. Along with the design of this tool, we present several case studies that show how eGprof can ... continued below

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12 p. (0.2 MB)

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Schulz, M & De Supinski, B R February 4, 2007.

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Description

Comparing performance profiles from two runs is an essential performance analysis step that users routinely perform. In this work we present eGprof, a tool that facilitates these comparisons through differential profiling inside gprof. We chose this approach, rather than designing a new tool, since gprof is one of the few performance analysis tools accepted and used by a large community of users. eGprof allows users to 'subtract' two performance profiles directly. It also includes callgraph visualization to highlight the differences in graphical form. Along with the design of this tool, we present several case studies that show how eGprof can be used to find and to study the differences of two application executions quickly and hence can aid the user in this most common step in performance analysis. We do this without requiring major changes on the side of the user, the most important factor in guaranteeing the adoption of our tool by code teams.

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12 p. (0.2 MB)

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PDF-file: 12 pages; size: 0.2 Mbytes

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  • Presented at: EuroPar 2007, Rennes, France, Aug 28 - Aug 31, 2007

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  • Report No.: UCRL-CONF-227812
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 914615
  • Archival Resource Key: ark:/67531/metadc877450

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • February 4, 2007

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • April 13, 2017, 4:12 p.m.

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Schulz, M & De Supinski, B R. Practical Differential Profiling, article, February 4, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc877450/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.