Re: [RFC] Templates and tweaks (for size performance and more)

[Tom Rini]

On Thu, Nov 07, 2002 at 11:44:56AM -0800, Andrew Morton wrote:
> Tom Rini wrote:
> > 
> > On Thu, Nov 07, 2002 at 11:27:25AM -0800, Andrew Morton wrote:
> > > Tom Rini wrote:
> > > >
> > > > Comments?
> > >
> > > You missed this little fella:
> > >
> > >    text    data     bss     dec     hex filename
> > >    1735    1120  131104  133959   20b47 kernel/pid.o
> > >
> > >
> > > Have a controversial patch which takes it to:
> > >
> > >    text    data     bss     dec     hex filename
> > >    1614    1120    2080    4814    12ce kernel/pid.o
> > 
> > My patch isn't about size per-se, it's about tweaking the kernel and
> > making it easier to do things like get a small kernel.  Or work on boxes
> > with large amounts of memory and not use HIGHMEM, or otherwise have
> > tweakable params with N different config options.
> > 
> 
> Yes.  Replace PIDHASH_SHIFT (in that patch) with TWEAK_PIDHASH_SHIFT.
> It must be a power of two.
> 
> Those tables are currently 128k even on the teeniest little
> uniprocessor build.

Ah, I see now.  In the next version I'll add that as an additional
patch.  Any comments on the idea itself or how I implemented it or
anything?

-- 
Tom Rini (TR1265)
http://gate.crashing.org/~trini/