From: Andrew Morton <akpm@osdl.org>
To: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>
Cc: anton@samba.org, linux-kernel@vger.kernel.org, jrsantos@austin.ibm.com
Subject: Re: [PATCH] remove cacheline alignment from inode slabs
Date: Sun, 15 Aug 2004 22:58:40 -0700 [thread overview]
Message-ID: <20040815225840.3ba8cdce.akpm@osdl.org> (raw)
In-Reply-To: <200408160825.42889.vda@port.imtp.ilyichevsk.odessa.ua>
Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua> wrote:
>
> +ifneq ($(CONFIG_CC_ALIGN_FUNCTIONS),0)
> +CFLAGS += -falign-functions=$(CONFIG_CC_ALIGN_FUNCTIONS)
> +endif
> +ifneq ($(CONFIG_CC_ALIGN_LABELS),0)
> +CFLAGS += -falign-labels=$(CONFIG_CC_ALIGN_LABELS)
> +endif
> +ifneq ($(CONFIG_CC_ALIGN_LOOPS),0)
> +CFLAGS += -falign-loops=$(CONFIG_CC_ALIGN_LOOPS)
> +endif
> +ifneq ($(CONFIG_CC_ALIGN_JUMPS),0)
> +CFLAGS += -falign-jumps=$(CONFIG_CC_ALIGN_JUMPS)
> +endif
When sending optimisation patches, please include information on how
effective the optimisation is. Before and after code sizes would be
appropriate here.
gcc-2.95.x barfs over all four of the above options. Some testing of
$(GCC_VERSION) is needed. That's only set up by arch/i386/Makefile at
present.
prev parent reply other threads:[~2004-08-16 6:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-15 23:37 [PATCH] remove cacheline alignment from inode slabs Anton Blanchard
[not found] ` <200408160825.42889.vda@port.imtp.ilyichevsk.odessa.ua>
2004-08-16 5:58 ` Andrew Morton [this message]
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