Improving sort performance with FASTSRT
Using the FASTSRT compiler option improves
the performance of most sort operations. With FASTSRT,
the DFSORT product (instead of Enterprise COBOL)
performs the I/O on the input and output files you name in the SORT
. . . USING and SORT . . . GIVING statements.
About this task
The
compiler issues informational messages to point out statements in
which FASTSRT can improve performance.
Usage notes
- You cannot use the DFSORT options
SORTINorSORTOUTif you useFASTSRT. TheFASTSRTcompiler option does not apply to line-sequential files you use asUSINGorGIVINGfiles. - If you specify file status and use
FASTSRT, file status is ignored during the sort.