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[Bug runtime/20597] New: broken @avg() calculations


https://sourceware.org/bugzilla/show_bug.cgi?id=20597

            Bug ID: 20597
           Summary: broken @avg() calculations
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
          Assignee: systemtap at sourceware dot org
          Reporter: mcermak at redhat dot com
  Target Milestone: ---

Created attachment 9506
  --> https://sourceware.org/bugzilla/attachment.cgi?id=9506&action=edit
proposed patch

Commit 0ec5ddf57deaefdf8bb6c18e502082a1acd7832d breaks @avg() calculations by
only performing them when STAT_OP_VARIANCE is set.  Relevant testcases:
foreach_aggrsort.exp global_end.exp map_wrap.exp print_stats.exp.  Attached
patch seems to fix the problem.

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