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Managing ABL Applications
ABL and R-code Deployment and Management : Managing Client Performance : Sorting I/O

Sorting I/O

The following table lists the startup parameters you use to improve performance when sorting records for reports and during index rebuild operations.
Table 25. Startup parameters for tuning sort performance
Startup parameter
Speed Sort (-TB)
Increase this parameter to 8K, 16K, or even 31K, particularly for index rebuild operations. Increasing this parameter increases memory usage during sorting and index rebuilds. It also slightly increases disk space usage.
Merge Number (-TM)
Increase this parameter to 32 to speed the merge phase of the sort process (at the cost of increased temporary memory usage).
For more information about these startup parameters, see OpenEdge Deployment: Startup Command and Parameter Reference.