From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pavel Machek <pavel@suse.cz>
Subject: Re: Use of parallel init threads for slow devices start
	ups?
Date: Mon, 19 Feb 2007 23:26:40 +0100
Message-ID: <20070219222640.GC21214@elf.ucw.cz>
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To: "Woodruff, Richard" <r-woodruff2@ti.com>
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Hi!

> While doing some startup time profiling it is noticed we spend a lot of
> time in the idle loop.  As there is only one thread initializing devices
> there is no one to schedule during device start ups.  So for example an
> external sensor might need a couple seconds to power up.
> =

> Does anyone want to give an opinion on forking off a parallel thread to
> handle slower devices which are not dependent?

GregKH had a patch to do that for PCI and USB, but it was broken. You
are welcome to ressurect them and fix them...

> This is true for boot time and for device resume time...

Lets get it right for boot, first.
									Pavel

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