linux-kernel - Re: Implementing NVMHCI...

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Message-ID: <49E22510.90608@garzik.org>
Date:	Sun, 12 Apr 2009 13:29:52 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Mark Lord <liml@....ca>
CC:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Grant Grundler <grundler@...gle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux IDE mailing list <linux-ide@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: Implementing NVMHCI...

Mark Lord wrote:
> Alan Cox wrote:
> ..
>> Alternatively you go for read-modify-write (nasty performance hit
>> especially for RAID or a log structured fs).
> ..
> 
> Initially, at least, I'd guess that this NVM-HCI thing is all about
> built-in flash memory on motherboards, to hold the "instant-boot"
> software that hardware companies (eg. ASUS) are rapidly growing fond of.
> 
> At present, that means a mostly read-only Linux installation,
> though MS for sure are hoping for Moore's Law to kick in and
> provide sufficient space for a copy of Vista there or something.

Yeah... instant boot, and "trusted boot" (booting a signed image), 
storage of useful details like boot drive layouts, etc.

I'm sure we can come up with other funs uses, too...

	Jeff




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