From: Bill Davidsen <davidsen@tmr.com>
To: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>
Cc: Andrew Morton <akpm@osdl.org>, Sam Ravnborg <sam@ravnborg.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Make gcc -align options .config-settable
Date: Mon, 04 Oct 2004 14:38:23 -0400 [thread overview]
Message-ID: <4161989F.9050607@tmr.com> (raw)
In-Reply-To: <200410012226.23565.vda@port.imtp.ilyichevsk.odessa.ua>
Denis Vlasenko wrote:
> Resend.
>
> With all alignment options set to 1 (minimum alignment),
> I've got 5% smaller vmlinux compared to one built with
> default code alignment.
It would be interesting to know if this is better WRT cache usage than
alignment which ensures that loops fit within the minimum number of
cache lines. That's not quite the same thing as starting on a cache line
in all cases.
This may be of interest to embedded builds.
--
-bill davidsen (davidsen@tmr.com)
"The secret to procrastination is to put things off until the
last possible moment - but no longer" -me
next prev parent reply other threads:[~2004-10-04 18:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-01 19:26 [PATCH] Make gcc -align options .config-settable Denis Vlasenko
2004-10-01 22:17 ` Andrew Morton
2004-10-04 22:04 ` Sam Ravnborg
2004-10-08 5:03 ` Keith Owens
2004-10-17 0:38 ` Sam Ravnborg
2004-10-04 18:38 ` Bill Davidsen [this message]
[not found] <2KBq9-2S1-15@gated-at.bofh.it>
2004-10-08 12:20 ` Andi Kleen
2004-10-08 17:10 ` Denis Vlasenko
2004-10-08 14:30 ` Grzegorz Kulewski
2004-10-08 20:42 ` Denis Vlasenko
2004-10-08 21:30 ` Grzegorz Kulewski
2004-10-08 15:42 ` Andi Kleen
2004-10-08 20:46 ` Denis Vlasenko
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