From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: Arjan van de Ven <arjan@infradead.org>
Cc: linux-ide@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH] ide/net: flip the order of SATA and network init
Date: Wed, 28 Jan 2009 01:22:20 +0100 [thread overview]
Message-ID: <200901280122.24499.bzolnier@gmail.com> (raw)
In-Reply-To: <20090127141952.51785b4f@infradead.org>
On Tuesday 27 January 2009, Arjan van de Ven wrote:
> From e89d6840ad685a3c61f72367d4ac5bfed69ead0c Mon Sep 17 00:00:00 2001
> From: Arjan van de Ven <arjan@linux.intel.com>
> Date: Mon, 26 Jan 2009 18:58:11 -0800
> Subject: [PATCH] ide/net: flip the order of SATA and network init
>
> this patch flips the order in which sata and network drivers are initialized.
it seems to affect much more than that, please see below
> SATA probing takes quite a bit of time, and with the asynchronous infrastructure
> other drivers that run after it can execute in parallel. Network drivers do tend
> to take some real time talking to the hardware, so running these later is
> a good thing (the sata probe then runs concurrent)
>
> This saves about 15% of my kernels boot time.
>
> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
> ---
> drivers/Makefile | 5 +++--
> 1 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/Makefile b/drivers/Makefile
> index c1bf417..2618a61 100644
> --- a/drivers/Makefile
> +++ b/drivers/Makefile
> @@ -36,13 +36,14 @@ obj-$(CONFIG_FB_INTEL) += video/intelfb/
>
> obj-y += serial/
> obj-$(CONFIG_PARPORT) += parport/
> -obj-y += base/ block/ misc/ mfd/ net/ media/
> +obj-y += base/ block/ misc/ mfd/ media/
> obj-$(CONFIG_NUBUS) += nubus/
> -obj-$(CONFIG_ATM) += atm/
> obj-y += macintosh/
> obj-$(CONFIG_IDE) += ide/
> obj-$(CONFIG_SCSI) += scsi/
scsi, ide, macintosh and nubus will be now init-ed after network.
No problem for ide but I'm not really sure about scsi...
> obj-$(CONFIG_ATA) += ata/
> +obj-y += net/
> +obj-$(CONFIG_ATM) += atm/
> obj-$(CONFIG_FUSION) += message/
> obj-$(CONFIG_FIREWIRE) += firewire/
> obj-y += ieee1394/
prev parent reply other threads:[~2009-01-28 0:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-27 22:19 [PATCH] ide/net: flip the order of SATA and network init Arjan van de Ven
2009-01-27 22:26 ` David Miller
2009-01-27 23:35 ` Jeff Garzik
2009-01-28 0:48 ` Arjan van de Ven
2009-01-28 1:23 ` David Miller
2009-01-28 1:59 ` Jeff Garzik
2009-01-28 0:22 ` Bartlomiej Zolnierkiewicz [this message]
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