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Postings from September 2013
On Sat May 26 18:26:14 2012, jkeenan wrote: > On Tue Jul 05 10:59:49 2005, ni-s wrote: > > Nicholas Clark <perl5-porters@perl.org> writes: > > > > > >It would seem a good idea to re-order this and prune the odd unused > > entries. > > >thrdvar.h has this comment: > > > > > >/* Important ones in the first cache line (if alignment is done > > right) */ > > > > > >so clearly some of the current ordering is important. > > > > I agree with the idea of re-ordering. > > I suspect the comment was wishful thinking (on my part? - 'twas I > > that invented the xxxxvar.h). > > > > The xxxvar.h stuff was to allow olde global variables and multiplicty > > etc. > > via pointer to share source. I am (still) curious as to how much speed > > gain the global variables give us. Most RISCs (which can't do > > 32-bit immediate) will access a globals via a register anyway. > > So I think most gain will come on x86 where explicit pointer > > adds to register preasure... > > > > > > > >Nicholas Clark > > > > > > Nicholas: Should we still be considering the fix you suggested in this RT? > > Thank you very much. > Jim Keenan Nicholas: Should we still be considering the fix you suggested in this RT? Thank you very much. Jim Keenan --- via perlbug: queue: perl5 status: open https://rt.perl.org:443/rt3/Ticket/Display.html?id=36380Thread Previous | Thread Next