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[Bug shlibs/15590] New: GDB slows nonlinearly as number of inferior solibs increases


http://sourceware.org/bugzilla/show_bug.cgi?id=15590

            Bug ID: 15590
           Summary: GDB slows nonlinearly as number of inferior solibs
                    increases
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: shlibs
          Assignee: unassigned at sourceware dot org
          Reporter: gbenson at redhat dot com

Performance testing during the implementation of the probes-based runtime
linker interface revealed that GDB slows nonlinearly as the number of inferior
shared libraries increases:

  no of solibs         128     256     512     1024    2048    4096
  -----------------------------------------------------------------
  original interface     0       1       4       12      47     185
  probes interface       0       0       2        4      10      36
  (time in seconds)

The probes interface is considerably faster than the original, but there is
still some nonlinearity there.

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