From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arjan van de Ven Subject: Re: [PATCH 2/4] fastboot: make scsi probes asynchronous Date: Sun, 4 Jan 2009 10:44:25 -0800 Message-ID: <20090104104425.4bee0c95@infradead.org> References: <20090104092430.7ffd2c41@infradead.org> <20090104092940.11943797@infradead.org> <20090104180515.GD2002@parisc-linux.org> <20090104101353.05e8df09@infradead.org> <3f9a31f40901041038w47493205m9fcd87fe237ec257@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <3f9a31f40901041038w47493205m9fcd87fe237ec257@mail.gmail.com> Sender: linux-acpi-owner@vger.kernel.org To: Jaswinder Singh Rajput Cc: Matthew Wilcox , linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, mingo@elte.hu, fweisbec@gmail.com, linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org, linux-acpi@vger.kernel.org, akpm@linux-foundation.org List-Id: linux-ide@vger.kernel.org On Mon, 5 Jan 2009 00:08:42 +0530 "Jaswinder Singh Rajput" wrote: > On Sun, Jan 4, 2009 at 11:43 PM, Arjan van de Ven > wrote: > > > > just checked; > > my box has CONFIG_SCSI_SCAN_ASYNC=y set for both cases > > it seems to be about 0.1 seconds win still though... > > sounds little, but a kernel boot should be less than a second, so > > that is still 10%. And it's obviously also disk dependent.. > > (I used libata connected disks obviously) > > > > Do you also have boot time numbers for RAM and/or flash based > filesystem (disk-less) my laptop with a pretty nice SSD shows a similar kind of behavior (bit shorter in time, but there the entire kernel boot is shorter as a whole) -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org