Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate
2005-04-12
2005-04-12
Tsai, Carol S (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Performance or efficiency evaluation
C709S229000
Reexamination Certificate
active
06879939
ABSTRACT:
A method and apparatus for controlling a distribution of sizes of input/output (I/O) operations in testing a data processing system. A plurality of I/O operations of different sizes are issued in response to a set of distribution parameter values. Each distribution parameter value specifies a number of I/O operations to issue for one or more sizes of I/O operations. The I/O operations are verified for correctness after completion. While issuing the I/O operations, performance characteristics of the data processing system are measured. In response to the performance characteristics relative to target performance characteristics, the distribution parameter values are selectively adjusted.
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Lang Michelle J.
Yohn William Judge
Crawford & Maunu PLLC
Johnson Charles A.
Starr Mark T.
Tsai Carol S
Unisys Corporation
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