From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37495) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XNOUY-0001Tz-He for qemu-devel@nongnu.org; Fri, 29 Aug 2014 11:53:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XNOUP-0006dQ-2z for qemu-devel@nongnu.org; Fri, 29 Aug 2014 11:53:34 -0400 Received: from mail-wg0-x22c.google.com ([2a00:1450:400c:c00::22c]:53599) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XNOUO-0006cP-LH for qemu-devel@nongnu.org; Fri, 29 Aug 2014 11:53:24 -0400 Received: by mail-wg0-f44.google.com with SMTP id m15so2316055wgh.3 for ; Fri, 29 Aug 2014 08:53:23 -0700 (PDT) Date: Fri, 29 Aug 2014 16:53:20 +0100 From: Stefan Hajnoczi Message-ID: <20140829155320.GA20193@stefanha-thinkpad.redhat.com> References: <1409274040-20304-1-git-send-email-famz@redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="J/dobhs11T7y2rNN" Content-Disposition: inline In-Reply-To: <1409274040-20304-1-git-send-email-famz@redhat.com> Subject: Re: [Qemu-devel] [PATCH v4] block: Introduce "null" driver List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Fam Zheng Cc: Kevin Wolf , benoit.canet@irqsave.net, qemu-devel@nongnu.org, armbru@redhat.com, Stefan Hajnoczi , pbonzini@redhat.com --J/dobhs11T7y2rNN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Aug 29, 2014 at 09:00:40AM +0800, Fam Zheng wrote: > This is an analogue to Linux null_blk. It can be used for testing or > benchmarking block device emulation and general block layer > functionalities such as coroutines and throttling, where disk IO is not > necessary or wanted. >=20 > Use null:// for AIO version, and null-co:// for coroutine version. Looks fine but please call them null-aio:// and null-co:// so it's 100% clear what they do. Stefan --J/dobhs11T7y2rNN Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJUAKHwAAoJEJykq7OBq3PIUxIIAKwAlDJOZY9yXHe52so4WZFZ coKPZJdzcenwGQESttk/b/dBc8T3KClEz1xzqZXqP1fYCEo6WWAZyNfVIM8PICFW iCUIrfnF7x7+W03dxDtlvsg6sIG7+mZAFNlD0EFEtbBWTjsWtyyVE5gaEj1UyYt8 cEz/T94PI48BmGeyLEWgMq6CB/1Uw3hQfIauOwFyZ59fxYN1w7B//1sHzW67ksJn qSTxe88k4zpc20w3K+ucCYIDwJtuviUJ0aa+NF3UWnsV84c0vzQyonVLaqm7gQvC t02vOlxUow6VvGpAs835VhsAH72uEptqnyaVgOO3y+o6KgYt/qRlDt6UAK3tCuE= =RI7k -----END PGP SIGNATURE----- --J/dobhs11T7y2rNN--