From: Roland Dreier <rolandd@cisco.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Andrew Morton <akpm@osdl.org>,
zippel@linux-m68k.org, ak@suse.de, rmk+lkml@arm.linux.org.uk,
tony.luck@gmail.com, paolo.ciarrocchi@gmail.com,
linux-kernel@vger.kernel.org
Subject: Re: New (now current development process)
Date: Tue, 01 Nov 2005 21:56:41 -0800 [thread overview]
Message-ID: <52u0eva8yu.fsf@cisco.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0511012142200.27915@g5.osdl.org> (Linus Torvalds's message of "Tue, 1 Nov 2005 21:43:28 -0800 (PST)")
Linus> I really don't see the point of shaving less than a kB with
Linus> ugly calling convention magic, when switching to -Os can
Linus> save us much more, and when the networking code is several
Linus> hundred kB.
Fair enough, although to be fair the savings are still there even with
-Os enabled. With CONFIG_CC_OPTIMIZE_FOR_SIZE=y:
text data bss dec hex filename
682564 197172 116384 996120 f3318 vmlinux-before
681824 197244 116384 995452 f307c vmlinux-after
And with a realistic config rather than allnoconfig, you could easily
save as much as 3 or even 4 KB of text!
BTW, allnoconfig has CONFIG_NET=n, so we have to find someone else to
blame here.
Linus> If we start doing size optimizations, we need to think big.
No pun intended I'm sure...
Anyway, it would be great to find ways to make big improvements. But
I think the most realistic way to shrink the kernel is the same way it
grows in the first place -- one small piece at a time.
- R.
next prev parent reply other threads:[~2005-11-02 5:56 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-29 17:26 New (now current development process) Paolo Ciarrocchi
2005-10-29 18:57 ` Tony Luck
2005-10-29 19:51 ` Russell King
2005-10-29 20:28 ` Linus Torvalds
2005-10-29 20:44 ` Akula2
2005-10-29 23:28 ` Greg KH
2005-10-29 22:29 ` Andi Kleen
2005-10-29 22:37 ` Russell King
2005-10-30 19:12 ` Andrew Morton
2005-10-30 21:43 ` Russell King
2005-10-30 22:31 ` Andrew Morton
2005-10-30 22:45 ` Russell King
2005-10-30 22:55 ` Andrew Morton
2005-10-30 23:17 ` Russell King
2005-10-31 0:48 ` Andi Kleen
2005-10-31 0:16 ` Russell King
2005-10-31 1:22 ` Andrew Morton
2005-10-31 2:41 ` Andi Kleen
2005-10-31 6:34 ` Zwane Mwaikambo
2005-10-31 7:07 ` Andrew Morton
2005-10-31 23:58 ` Roman Zippel
2005-11-01 0:05 ` Andrew Morton
2005-11-01 0:13 ` Linus Torvalds
2005-11-01 0:34 ` Andrew Morton
2005-11-01 0:59 ` Grant Coady
2005-11-01 14:08 ` Adrian Bunk
2005-11-01 15:15 ` Nix
2005-11-01 15:26 ` Bill Davidsen
2005-11-02 5:01 ` Roland Dreier
2005-11-02 5:43 ` Linus Torvalds
2005-11-02 5:56 ` Roland Dreier [this message]
2005-11-02 6:05 ` Linus Torvalds
2005-11-02 6:15 ` Roland Dreier
2005-11-02 15:54 ` Linus Torvalds
2005-11-02 17:48 ` Dave Jones
2005-11-02 18:12 ` Adrian Bunk
2005-11-02 20:11 ` David Lang
2005-11-02 22:31 ` Sam Ravnborg
2005-11-03 18:54 ` Andi Kleen
2005-11-02 23:11 ` Rob Landley
2005-11-04 22:08 ` Tim Bird
2005-11-04 22:35 ` Andi Kleen
2005-11-04 23:33 ` Tim Bird
2005-11-02 15:41 ` Andreas Kleen
2005-11-01 7:52 ` Russell King
2005-11-01 9:09 ` Rob Landley
2005-11-01 14:15 ` Adrian Bunk
2005-11-01 0:17 ` Roman Zippel
2005-11-01 0:34 ` Jesse Barnes
2005-10-31 1:10 ` Andrew Morton
2005-10-31 5:05 ` Rob Landley
2005-10-31 7:17 ` Andrew Morton
2005-10-31 8:47 ` Rogério Brito
2005-10-31 9:54 ` Andrew Morton
2005-11-02 5:04 ` Martin J. Bligh
2005-10-30 21:32 ` Theodore Ts'o
2005-10-31 0:45 ` Andi Kleen
2005-10-31 0:18 ` Al Viro
2005-10-31 3:14 ` Paul Jackson
2005-10-31 3:34 ` Al Viro
2005-10-31 6:17 ` Paul Jackson
2005-10-31 7:22 ` Andrew Morton
2005-10-31 7:27 ` Al Viro
2005-10-31 8:19 ` Paul Jackson
2005-11-02 4:53 ` Martin J. Bligh
2005-11-02 4:49 ` Martin J. Bligh
2005-10-31 4:52 ` Rob Landley
2005-11-02 14:44 ` Andreas Kleen
2005-10-30 1:12 ` Tony Luck
2005-10-31 6:41 ` Willy Tarreau
2005-11-07 4:54 ` Eric Sandall
2005-11-07 16:12 ` Krzysztof Halasa
2005-11-07 17:11 ` Christopher Friesen
2005-11-07 17:22 ` Linus Torvalds
2005-11-07 17:28 ` Linus Torvalds
2005-11-07 20:34 ` Willy Tarreau
2005-11-07 18:25 ` Krzysztof Halasa
2005-10-30 0:37 ` Jesper Juhl
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