Re: optimising, and per file flags

2003-01-16 Thread Nicholas Clark
On Mon, Jan 13, 2003 at 09:22:07AM -0800, Steve Fink wrote: > On Jan-12, Nicholas Clark wrote: > > IIRC Leo added an option to Configure.pl to turn on optimising. > > > > Prior to this, on IRC Dan said to me that we need to avoid the hack that perl5 > > found itself in, when it had to retro-fit th

Re: optimising, and per file flags

2003-01-13 Thread Leopold Toetsch
Nicholas Clark wrote: On Mon, Jan 13, 2003 at 05:14:54PM +0100, Leopold Toetsch wrote: The -malign flags seem to have reasonable defaults. As in you've read what they are, and they seem reasonable, or you've actually tested the timings when playing with them? The impact is very small, tho

Re: optimising, and per file flags

2003-01-13 Thread Steve Fink
On Jan-12, Nicholas Clark wrote: > IIRC Leo added an option to Configure.pl to turn on optimising. > > Prior to this, on IRC Dan said to me that we need to avoid the hack that perl5 > found itself in, when it had to retro-fit the ability to change the compiler > flags per file. > > Currently I do

Re: optimising, and per file flags

2003-01-13 Thread Nicholas Clark
On Mon, Jan 13, 2003 at 05:14:54PM +0100, Leopold Toetsch wrote: > The -malign flags seem to have reasonable defaults. As in you've read what they are, and they seem reasonable, or you've actually tested the timings when playing with them? colon has too much load ("damn users" (of which I'm one))

Re: optimising, and per file flags

2003-01-13 Thread Leopold Toetsch
Nicholas Clark wrote: IIRC Leo added an option to Configure.pl to turn on optimising. Yep. Has anyone [er, I'm thinking of Leo :-)] tried benchmarking computed goto without this flag? And with the various align functions, such as -falign-jumps ? -O3 -fno-gcse doesn't compile the core_ops

Re: optimising, and per file flags

2003-01-12 Thread Dan Sugalski
At 3:45 PM + 1/12/03, Nicholas Clark wrote: Prior to this, on IRC Dan said to me that we need to avoid the hack that perl5 found itself in, when it had to retro-fit the ability to change the compiler flags per file. Right, I want to do it right to begin with, as we'll undoubtedly have to do

optimising, and per file flags

2003-01-12 Thread Nicholas Clark
IIRC Leo added an option to Configure.pl to turn on optimising. Prior to this, on IRC Dan said to me that we need to avoid the hack that perl5 found itself in, when it had to retro-fit the ability to change the compiler flags per file. Currently I don't think we have this ability. I was wondering