Corion... Maybe I misunderstand your use of 

$DB::single=1

[download]

To use that, doesn't the code needs to be loaded with the debugger?
So every sub is already wrapped with a DB::sub() like Rolf suggests.
and the whole script is already slowed down before I hit the $DB::single =1;

If I don't load through debugger I get: 

Name "DB::single" used only once: possible typo at fix_ahdl_dcfx_const
+raint_file.pl line 78.

[download]

I can fix that warning by adding 

use DB;

[download]

But I still can't interact with the debugger without running with the perl -d flag.

Now I'm really done spending time on this :)
But it has helped me understand the debugger a bit more.

In reply to Re^2: Perl Debugger degrades performance when reading large spreadsheet by boleary
in thread Perl Debugger degrades performance when reading large spreadsheet by boleary

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