I'm curious. Do others running 5.8.0 get the same error? Have you tried contacting the author of the module?

I'm still running 5.6.1 in most places, so have not encountered the problem.

USEFULE UPDATE:) Ignore all the stuff below and add the following line just above the use Time::HiRes 'time'; at line 9 of SmallProf.pm.

sub DB{ return; }

This satsfies the error created when the debugger tries to invoke DB::DB() as Time::HiRes is loaded at BEGIN time, which is before the DB::DB() sub has been compiled. If you enable warnings via the command line with -w, you will see the error msg

Subroutine DB redefined at D:/Perl/lib/Devel/SmallProf.pm line 50.

When the above benign routine is replaced by the real one. Other than that, this fix seems to be completely effective and transparent.

END UPDATE - Everything below is redundant

I'm not sure that this a complete answer, but I found that if you comment out the use Time::HiRes 'time'; at line 4 9 of SmallProf.pm, the profiling completes without error.

The problem then is, that the wallclock times are then calculated using the built-in time function (with it's inherent limitation of whole second resolution) rather than the Time::HiRes equivalent with its sub-second resolution.

This renders the wallclock timimgs pretty useless unless you have really long running processes, but the iteration counts and cpu second times remain unaffected. As these are, for the most part, the most useful figures, it may at least allow you to continue until the p5p guys resolve the problem properly.

I tried moving the use line around various places, but it seems to be some weird sort of circular dependancy that is tripping it up. Anyway, maybe this will help you some.