From patchwork Tue Nov 23 23:03:05 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 72771 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id A05BCB708B for ; Wed, 24 Nov 2010 10:09:56 +1100 (EST) Received: from localhost ([127.0.0.1]:45959 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PL1zl-0004AE-PK for incoming@patchwork.ozlabs.org; Tue, 23 Nov 2010 18:09:53 -0500 Received: from [140.186.70.92] (port=48820 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PL1tn-0001LO-7p for qemu-devel@nongnu.org; Tue, 23 Nov 2010 18:04:01 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PL1tX-0000tT-Fq for qemu-devel@nongnu.org; Tue, 23 Nov 2010 18:03:42 -0500 Received: from mx1.redhat.com ([209.132.183.28]:33483) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PL1tX-0000tD-4G for qemu-devel@nongnu.org; Tue, 23 Nov 2010 18:03:27 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id oANN3QbJ012663 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 23 Nov 2010 18:03:26 -0500 Received: from trasno.mitica (ovpn-113-23.phx2.redhat.com [10.3.113.23]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id oANN3D5c025161; Tue, 23 Nov 2010 18:03:25 -0500 From: Juan Quintela To: qemu-devel@nongnu.org Date: Wed, 24 Nov 2010 00:03:05 +0100 Message-Id: In-Reply-To: References: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. Cc: Juan Quintela Subject: [Qemu-devel] [PATCH 08/10] Count nanoseconds with uint64_t not doubles X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Juan Quintela Signed-off-by: Juan Quintela Signed-off-by: Juan Quintela --- arch_init.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/arch_init.c b/arch_init.c index 9e941a0..d32aaae 100644 --- a/arch_init.c +++ b/arch_init.c @@ -216,6 +216,7 @@ int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque) { ram_addr_t addr; uint64_t bytes_transferred_last; + uint64_t t0; double bwidth = 0; if (stage < 0) { @@ -258,7 +259,7 @@ int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque) } bytes_transferred_last = bytes_transferred; - bwidth = qemu_get_clock_ns(rt_clock); + t0 = qemu_get_clock_ns(rt_clock); while (!qemu_file_rate_limit(f)) { int bytes_sent; @@ -270,8 +271,8 @@ int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque) } } - bwidth = qemu_get_clock_ns(rt_clock) - bwidth; - bwidth = (bytes_transferred - bytes_transferred_last) / bwidth; + t0 = qemu_get_clock_ns(rt_clock) - t0; + bwidth = (bytes_transferred - bytes_transferred_last) / t0; /* if we haven't transferred anything this round, force expected_time to a * a very high value, but without crashing */