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Issue No.05 - September/October (1989 vol.6)
pp: 70-79
ABSTRACT
<p>It is shown how to reduce computer usage significantly by building performance into the code. Compiler performance is first defined, and three Cobol environments chosen to illustrate compiler performance in various settings are described: two mainframes and one personal computer. The usage clause, data fields, data-type conversions, tables, file-blocking efficiencies, 'perform' and 'call' overhead, sorting efficiency, ISAM file performance, and compiler options are discussed. Ten steps to improve program performance in an organization's installation are recommended.</p>
INDEX TERMS
performance potential; Cobol; compiler performance; mainframes; personal computer; usage clause; data fields; data-type conversions; tables; file-blocking efficiencies; sorting efficiency; ISAM file performance; compiler options; program performance; COBOL; program compilers
CITATION
Paul J. Jalics, "Realizing the Performance Potential of Cobol", IEEE Software, vol.6, no. 5, pp. 70-79, September/October 1989, doi:10.1109/52.35591
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