Library /sys$common/syshlp/PCA$HELP.HLB  —  SET  UNALIGNED
    Collector Command

    Enables the collection of unaligned access fault data.

    Format

      SET UNALIGNED

1  –  Description

    The SET UNALIGNED command enables the collection of unaligned
    access fault data. After you enter the GO command with unaligned
    access fault data collection enabled, the Collector records in
    the performance data file every unaligned access fault that
    occurs during program execution. The Collector records the
    faulting virtual address and program location where it occured.

    You must collect stack PC information if you want to use a /MAIN_
    IMAGE, /CUMULATIVE or /STACK_DEPTH qualifier with the PLOT or
    TABULATE command in the Analyzer.

2  –  Qualifiers

2.1    /STACK_PCS

    Specifies that stack PC values are collected for unaligned access
    fault data. This is the default upon entry into the Collector.

2.2    /NOSTACK_PCS

    Specifies that no stack PC values are collected for unaligned
    access fault data.

3  –  Examples

  PCAC> SET UNALIGNED

      This command enables the collection of unaligned access fault
      data.
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