On Thu, 19 Oct 2000, Chris Nokleberg wrote:
> Following up on my post on this subject a couple of months ago, here is a
> proof-of-concept drop-in replacement for Apache::Registry that eliminates
> the "my() Scoped Variable in Nested Subroutine" problem.
nice hack!
> It requires PERL5OPT = "-d" and PERL5DB = "sub DB::DB {}" environment
> variables set when starting the mod_perl-enabled httpd. This enables the
> %DB::sub hash table that holds subroutine start and end line info. I
> presume that this has some negative (marginal?) impact on performance. If
> someone knows of a better way to reliably figure out where a subroutine
> starts and ends, please let me know.
there is quite a bit of overhead when -d is enabled. have a look at
Apache::DB.xs, there's in init_debugger() function todo what -d does. if
another method was added to turn it off, after the registry script was
compiled, the overhead would be reduced a great deal.
