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From: Ingo Oeser <ioe-lkml@rameria.de>
To: Dave Dillow <dave@thedillows.org>
Cc: Denis Vlasenko <vda@ilport.com.ua>,
	netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
	linux-kernel@vger.kernel.org, jgarzik@pobox.com
Subject: Re: [PATCH] deinline a few large functions in vlan code v2
Date: Thu, 13 Apr 2006 13:32:50 +0200	[thread overview]
Message-ID: <200604131332.51784.ioe-lkml@rameria.de> (raw)
In-Reply-To: <1144862325.18319.32.camel@dillow.idleaire.com>

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

      parent reply	other threads:[~2006-04-13 11:35 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-07 13:28 [PATCH] deinline a few large functions in vlan code Denis Vlasenko
2006-04-07 20:25 ` David S. Miller
2006-04-10  5:28   ` Denis Vlasenko
2006-04-10  5:45     ` David S. Miller
2006-04-10 14:16       ` [PATCH] deinline a few large functions in vlan code v2 Denis Vlasenko
2006-04-10 14:31         ` Auke Kok
2006-04-10 15:26         ` Dave Dillow
2006-04-11  7:28           ` Denis Vlasenko
2006-04-11  8:02             ` David S. Miller
2006-04-11  9:49             ` Ingo Oeser
     [not found]               ` <200604111502.52302.vda@ilport.com.ua>
2006-04-11 13:17                 ` Ingo Oeser
2006-04-12 19:32                   ` [RFD][PATCH] typhoon and core sample for folding away VLAN stuff (was: Re: [PATCH] deinline a few large functions in vlan code v2) Ingo Oeser
2006-04-12 20:10                     ` [RFD][PATCH] typhoon and core sample for folding away VLAN stuff Ben Greear
2006-04-12 20:23                       ` Stephen Hemminger
2006-04-12 20:51                       ` David S. Miller
2006-04-13  1:24                     ` Dave Dillow
2006-04-13  8:38                       ` Denis Vlasenko
2006-04-13 15:00                         ` Dave Dillow
2006-04-11 13:59             ` [PATCH] deinline a few large functions in vlan code v2 Dave Dillow
2006-04-12  8:55               ` Denis Vlasenko
2006-04-12 17:18                 ` Dave Dillow
2006-04-13  6:04                   ` Denis Vlasenko
2006-04-13 14:59                     ` Dave Dillow
2006-04-13 11:32                   ` Ingo Oeser [this message]

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