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SubjectRe: Intel P6 vs P7 system call performance
Dave Jones <> said:
> On Wed, Dec 18, 2002 at 10:40:24AM -0300, Horst von Brand wrote:
> > [Extremely interesting new syscall mechanism tread elided]
> >
> > What happened to "feature freeze"?

> *bites lip* it's fairly low impact *duck*.
> Given the wins seem to be fairly impressive across the board, spending
> a few days on getting this right isn't going to push 2.6 back any
> noticable amount of time.

Ever hear Larry McVoy's [I think, please correct me if wrong] standard
rant of how $UNIX_FROM_BIG_VENDOR sucks, one "almost unnoticeable
performance impact" feature at a time?

Similarly, Fred Brooks tells in "The Mythical Man Month" how schedules
don't slip by months, they slip a day at a time...

> This stuff is mostly of the case "it either works, or it doesn't".
> And right now, corner cases like apm aside, it seems to be holding up
> so far. This isn't as far reaching as it sounds. There are still
> drivers being turned upside down which are changing things in a
> lot bigger ways than this[1]
> Dave
> [1] Myself being one of the guilty parties there, wrt agp.

Fixing a broken feature is in for me. Adding new features is supposed to be
out until 2.7 opens.
Dr. Horst H. von Brand User #22616
Departamento de Informatica Fono: +56 32 654431
Universidad Tecnica Federico Santa Maria +56 32 654239
Casilla 110-V, Valparaiso, Chile Fax: +56 32 797513
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