Simultaneous multiple module versions

[Nicholas Clark]

On Thu, Aug 17, 2006 at 02:12:24PM +0100, Matt S Trout wrote:
> Dave Hodgkinson wrote:
> >
> >On 16 Aug 2006, at 18:10, Toby Corkindale wrote:
> >
> >>
> >>Any thoughts or options I've missed?
> >
> >Keep the old version runnung, put up a clean new CentOS VM on the machine.
> >
> >Profit!
> 
> Just don't upgrade petk past 5.8.4-4 since -5 introduces a backport of the 
> 5.10 rebless-with-overload stuff that introduces a 30x performance hit for 
> bless({}, $class). But hey, Class::DBI is slightly less broken. Thanks, 
> guys.

You've measured this? Or you just read this somewhere?
If the former, do you have a demonstration case?

Nicholas Clark