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Postings from May 2012
On Sun May 30 15:39:00 2004, davem@iabyn.com wrote: > On Fri, May 28, 2004 at 11:07:28PM -0000, Norbert wrote: > > I can't run the Devel::DProf profiler on any script that uses > > threads/shared.pm, because that lib loads itself using > > XSLoader::load(). This function is written such that it bumps > > up against a DProf bug, whereby it chokes on subroutines that > > end with a last, goto, or next. > (snip) > > I suppose that if this problem is going to be fixed in DProf > > then this is just a duplicate bug, but I would suggest that > > this issue increases the severity, since the major question > > marks about ithreads seems to revolve around memory usage, > > which DProf is useful for checking. > > Thanks for the report. yes, this does seem to be the same problem. > > P5Pers: the root problem seems to be that whenever pp_entersub is invoked, > it calls DB::sub rather than the the real sub, and it is left to DB::sub > to then invoke the real sub, which can be tricky when that real sub may do > various stuff that will unwind the CX stack (like goto &foo, last, die). > > I'd have thought a better way would be to provide an additional C-level > hook that gets called by entersub before it (ie entersub) then proceeds to > call the real sub as usual. > > I havn't looked into this closely, though. I'm hoping someone with some > more experience in this area might comment. > > Dave. > Discussion in this RT petered out eight years ago, and Devel::DProf was removed from the Perl core distribution with Perl 5.15.9. How should we handle this ticket? Thank you very much. Jim Keenan --- via perlbug: queue: perl5 status: open https://rt.perl.org:443/rt3/Ticket/Display.html?id=29939Thread Previous | Thread Next