linux-kernel - RE: Tmem [PATCH 0/5] (Take 3): Transcendent memory

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Message-ID: <dfed453e-7cc5-4a17-a45a-fe1d27592615@default>
Date:	Mon, 28 Dec 2009 13:41:02 -0800 (PST)
From:	Dan Magenheimer <dan.magenheimer@...cle.com>
To:	Pavel Machek <pavel@....cz>
Cc:	Nitin Gupta <ngupta@...are.org>, Nick Piggin <npiggin@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>, jeremy@...p.org,
	xen-devel@...ts.xensource.com, tmem-devel@....oracle.com,
	Rusty Russell <rusty@...tcorp.com.au>,
	Rik van Riel <riel@...hat.com>, dave.mccracken@...cle.com,
	sunil.mushran@...cle.com, Avi Kivity <avi@...hat.com>,
	Schwidefsky <schwidefsky@...ibm.com>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>, chris.mason@...cle.com,
	linux-mm <linux-mm@...ck.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: RE: Tmem [PATCH 0/5] (Take 3): Transcendent memory

> > One feature of frontswap which is different than ramzswap is
> > that frontswap acts as a "fronting store" for all configured
> > swap devices, including SAN/NAS swap devices.  It doesn't
> > need to be separately configured as a "highest priority" swap
> > device.  In many installations and depending on how ramzswap
> 
> Ok, I'd call it a bug, not a feature :-).
> 								Pavel

I agree it has little value (or might be considered a bug)
when managing Linux on a physical machine.  But when
Linux is running in a virtual machine, it's one less thing
that a sysadmin needs to understand and configure.
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