Re: [PATCH] deinline a few large functions in vlan code v2

From: Ingo Oeser
Date: Thu Apr 13 2006 - 07:35:26 EST


Hi Dave,

On Wednesday, 12. April 2006 19:18, Dave Dillow wrote:
> you've left the spin_locks in, and have more #ifdefs.

Ok, I can refactor your driver to even remove this and reduce it to exaxtly
two ifdef sections for your driver. Acceptable?

> Regardless, I remain opposed to this particular instance of bloat
> busting. While both patches have improved in style, they remove a useful
> feature and make the code less clean, for no net gain.

s/useful feature/unreachable code/g

> On SMP FC4, typhoon.ko has a text size of 68330, so you need to cut 2794
> bytes to see an actual difference in memory usage for a module. Non-SMP
> it is 67741, so there you only need to cut 2205 bytes to get a win.

text data bss dec hex filename
62079 973 4 63056 f650 no-vlan/drivers/net/typhoon.o
62654 973 4 63631 f88f vlan/drivers/net/typhoon.o

with allyesconfig (minus CONFIG_INFO) and my patches applied.
So maybe the uninlining is enough. Gain after this is just 575 bytes here.


Regards

Ingo Oeser
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