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[Bug binutils/22802] massive performance regression for `readelf -n`


From: nickc at redhat dot com
Subject: [Bug binutils/22802] massive performance regression for `readelf -n`
Date: Thu, 08 Feb 2018 12:41:46 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=22802

Nick Clifton <nickc at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |nickc at redhat dot com
         Resolution|---                         |FIXED

--- Comment #3 from Nick Clifton <nickc at redhat dot com> ---
Hi Robert,

  Sorry - this was my fault.  The new code to follow debug links
  was looking for DWO links, even if the user was not interested
  in them.  Finding DWO links involves reading in processing pretty
  much all of the .debug_info section, which in a file with a lot
  of debug information can take a long time.

  I have checked in a small patch to stop the search for DWO links
  unless the user has provided the --debug=links or --debug=follow-links
  options.  This should give you back your millisecond response times.

Cheers
  Nick

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