Re: [PATCH] Decrease number of pointer derefs in nf_conntrack_core.c

[Jesper Juhl]

On 12/9/05, Ingo Molnar <mingo@xxxxxxx> wrote:
>
> * Jesper Juhl <jesper.juhl@xxxxxxxxx> wrote:
>
> > orig:
> >    text    data     bss     dec     hex filename
> >   12636      49     760   13445    3485 net/netfilter/nf_conntrack_core.o
> >
> > patched:
> >    text    data     bss     dec     hex filename
> >   11825     183     632   12640    3160 net/netfilter/nf_conntrack_core.o
>
> just a question - are you sure the measurements are accurate in this
> case? The patch looks too small to shave more than 800 bytes off .text!
> If it's real then something really wrong is going on in gcc-land ...
>
I did all this with an allyesconfig kernel source and then did :
   make net/netfilter/nf_conntrack_core.o
   size net/netfilter/nf_conntrack_core.o
   rm net/netfilter/nf_conntrack_core.o
then applied the patch and redid
   make net/netfilter/nf_conntrack_core.o
   size net/netfilter/nf_conntrack_core.o

So I believe the numbers should be correct, but I'm not at home atm,
so I can't verify right now. I won't have a chance to look at it until
tomorrow, but then I'll double-check.

--
Jesper Juhl <jesper.juhl@xxxxxxxxx>
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