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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=52u0eva8yu.fsf@cisco.com \
--to=rolandd@cisco.com \
--cc=ak@suse.de \
--cc=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
--cc=paolo.ciarrocchi@gmail.com \
--cc=rmk+lkml@arm.linux.org.uk \
--cc=tony.luck@gmail.com \
--cc=torvalds@osdl.org \
--cc=zippel@linux-m68k.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.