linux-kernel - Re: Work Queue for btrfs compression writes

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Date:	Wed, 30 Jul 2014 10:36:57 -0400
From:	Peter Hurley <peter@...leysoftware.com>
To:	Theodore Ts'o <tytso@....edu>
CC:	Hugo Mills <hugo@...fax.org.uk>, Nick Krause <xerofoify@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-btrfs@...r.kernel.org" <linux-btrfs@...r.kernel.org>
Subject: Re: Work Queue for btrfs compression writes

On 07/30/2014 10:13 AM, Theodore Ts'o wrote:
> On Wed, Jul 30, 2014 at 10:38:21AM +0100, Hugo Mills wrote:
>> qemu/kvm is good for this, because it has a mode
>> that bypasses the BIOS and bootloader emulation, and just directly
>> runs a kernel from a file on the host machine. This is fast. You can
>> pass large sparse files to the VM to act as scratch disks, plus keep
>> another smaller file for the guest OS (and a copy of it so that you
>> can throw one away and make another one quickly and easily).
> 
> Nick,
> 
> The xfstests-bld/kvm-xfstests git tree I pointed out to you has an
> example of a test infrastructure which does this for ext4.  It's been
> on my todo list to support other file systems, and I have some plans
> for how to do thi, but it's been low on my priority list.  If someone
> in the btrfs development community is interested in working with me on
> this, they should contact me.

Ted,

Where is that git tree? I've been planning to set up a unit test and
regression suite for tty/serial, and wouldn't mind cribbing the
infrastructure from someone's existing work.

Regards,
Peter Hurley

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