System and method for analyzing data accesses of a trace...

Data processing: software development – installation – and managem – Software program development tool – Translation of code

Reexamination Certificate

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C717S128000, C717S156000, C711S118000, C712S207000

Reexamination Certificate

active

06971092

ABSTRACT:
A system and method for analyzing data accesses to determine data access patterns. Data address accesses are traced and transformed into Whole Program Streams (WPS). WPS may then be used to discover higher-level data abstractions, such as hot data streams and data flow graphs. Hot data streams provide information related to sequences of data addresses that are repeatedly accessed together. Data flow graphs indicate how hot data streams are related and include frequencies of each hot data stream following another. Hot data streams and data flow graphs may be used with pre-fetching and/or cache managers to improve program performance.

REFERENCES:
Larus-Schnarr, EEL: Machine-Independent Executable Editing, Feb. 1995, ACM SIGPLAN'95, LaJolia, CA.
Cohn-Lowney, Hot Cold Optimization of Large Windows/NT Applications, 1996, IEEE.
Rosenberg-Jacobson-Sazeides-Smith, Trace Processors, 1997, IEEE.
Nevill-Manning et al., “Compression and Explanation Using Hierarchical Grammars”,The Computer Journal,vol. 40, No. 2/3, 1997, pp. 103-116.
Larus, “Whole Program Paths”,ACM SIGPLAN Notices, vol. 34, No. 5, Atlanta, GA, May 1999, pp. 259-269.
Chilimbi et al., “Making Pointer-Based Data Structures Cache Conscious”,Computer,vol. 33, No. 12, Dec. 2000, pp. 67-74.
Chilimbi, “Efficient Representations and Abstractions for Quantifying and Exploiting Data Reference Locality”,ACM SIGPLAN Notices, vol. 36, No. 5, Snowbird, UT, Jun. 2001, pp. 191-202.
Chilimbi, “On the Stability of Temporal Data Reference Profiles”,International Conference on Parallel Architectures&Compilation Techniques, Barcelona, Spain, Sep. 2001, pp. 151-160.

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