[Bug binutils/30725] New: severe objdump performance regression

[Stromeko at nexgo dot de]

https://sourceware.org/bugzilla/show_bug.cgi?id=30725

            Bug ID: 30725
           Summary: severe objdump performance regression
           Product: binutils
           Version: 2.41
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: Stromeko at nexgo dot de
  Target Milestone: ---

On Cygwin the performance of objdump has further degraded with 2.41.  The
extraction of the debuginfo source files from the objects with "objdump -d -l"
that was already quite slow sees an additional 2× slowdown cs. the previous
version.

* cygport gcc install

2.39:  8763.607u 284.933s   29:14.38 515.7%   0+0k 0+0io 41005478pf+0w
2.40: 10122.687u 249.745s   31:29.71 548.8%   0+0k 0+0io 41382419pf+0w
2.41: 23065.196u 516.525s 1:02:40.22 627.1%   0+0k 0+0io 41348709pf+0w

The timing of install phase of gcc is dominated by the objdump invocation and
there mainly by the compiler executables (d21 usually takes the longest).

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