From patchwork Wed Jan 10 09:18:43 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fam Zheng X-Patchwork-Id: 858127 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3zGk823tzqz9s8J for ; Wed, 10 Jan 2018 20:23:14 +1100 (AEDT) Received: from localhost ([::1]:56010 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eZCbI-0008Fr-Gt for incoming@patchwork.ozlabs.org; Wed, 10 Jan 2018 04:23:12 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49025) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eZCXq-0005gC-0J for qemu-devel@nongnu.org; Wed, 10 Jan 2018 04:19:38 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eZCXp-0000Cm-5X for qemu-devel@nongnu.org; Wed, 10 Jan 2018 04:19:37 -0500 Received: from mx1.redhat.com ([209.132.183.28]:34720) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eZCXm-00009l-Gn; Wed, 10 Jan 2018 04:19:34 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A27A5C058EC2; Wed, 10 Jan 2018 09:19:33 +0000 (UTC) Received: from lemon.usersys.redhat.com (ovpn-12-52.pek2.redhat.com [10.72.12.52]) by smtp.corp.redhat.com (Postfix) with ESMTP id AAAF37B8D3; Wed, 10 Jan 2018 09:19:29 +0000 (UTC) From: Fam Zheng To: qemu-devel@nongnu.org Date: Wed, 10 Jan 2018 17:18:43 +0800 Message-Id: <20180110091846.10699-7-famz@redhat.com> In-Reply-To: <20180110091846.10699-1-famz@redhat.com> References: <20180110091846.10699-1-famz@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Wed, 10 Jan 2018 09:19:33 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v4 6/9] qemu-img: Map bench buffer X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Fam Zheng , qemu-block@nongnu.org, Markus Armbruster , Max Reitz , Keith Busch , Stefan Hajnoczi , Paolo Bonzini , Karl Rister Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Fam Zheng Reviewed-by: Stefan Hajnoczi --- qemu-img.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/qemu-img.c b/qemu-img.c index 68b375f998..28d0e4e9f8 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -3862,6 +3862,7 @@ static int img_bench(int argc, char **argv) struct timeval t1, t2; int i; bool force_share = false; + size_t buf_size; for (;;) { static const struct option long_options[] = { @@ -4050,9 +4051,12 @@ static int img_bench(int argc, char **argv) printf("Sending flush every %d requests\n", flush_interval); } - data.buf = blk_blockalign(blk, data.nrreq * data.bufsize); + buf_size = data.nrreq * data.bufsize; + data.buf = blk_blockalign(blk, buf_size); memset(data.buf, pattern, data.nrreq * data.bufsize); + blk_register_buf(blk, data.buf, buf_size); + data.qiov = g_new(QEMUIOVector, data.nrreq); for (i = 0; i < data.nrreq; i++) { qemu_iovec_init(&data.qiov[i], 1); @@ -4073,6 +4077,9 @@ static int img_bench(int argc, char **argv) + ((double)(t2.tv_usec - t1.tv_usec) / 1000000)); out: + if (data.buf) { + blk_unregister_buf(blk, data.buf); + } qemu_vfree(data.buf); blk_unref(blk);