From patchwork Fri Nov 28 14:12:17 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Bonzini X-Patchwork-Id: 415888 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org 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 CD69D14017E for ; Sat, 29 Nov 2014 01:13:30 +1100 (AEDT) Received: from localhost ([::1]:44549 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XuMIa-0001Qd-Ji for incoming@patchwork.ozlabs.org; Fri, 28 Nov 2014 09:13:28 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34615) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XuMHv-0000NE-7l for qemu-devel@nongnu.org; Fri, 28 Nov 2014 09:12:53 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XuMHo-0004qv-UF for qemu-devel@nongnu.org; Fri, 28 Nov 2014 09:12:47 -0500 Received: from mx1.redhat.com ([209.132.183.28]:53394) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XuMHo-0004qk-NB for qemu-devel@nongnu.org; Fri, 28 Nov 2014 09:12:40 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id sASECYYk009140 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 28 Nov 2014 09:12:34 -0500 Received: from donizetti.redhat.com (ovpn-112-73.ams2.redhat.com [10.36.112.73]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id sASECLCx022437; Fri, 28 Nov 2014 09:12:31 -0500 From: Paolo Bonzini To: qemu-devel@nongnu.org Date: Fri, 28 Nov 2014 15:12:17 +0100 Message-Id: <1417183941-26329-4-git-send-email-pbonzini@redhat.com> In-Reply-To: <1417183941-26329-1-git-send-email-pbonzini@redhat.com> References: <1417183941-26329-1-git-send-email-pbonzini@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: kwolf@redhat.com, ming.lei@canonical.com, pl@kamp.de, stefanha@redhat.com Subject: [Qemu-devel] [PATCH 3/7] test-coroutine: avoid overflow on 32-bit systems X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org unsigned long is not large enough to represent 1000000000 * duration there. Just use floating point. Signed-off-by: Paolo Bonzini --- tests/test-coroutine.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/test-coroutine.c b/tests/test-coroutine.c index e22fae1..27d1b6f 100644 --- a/tests/test-coroutine.c +++ b/tests/test-coroutine.c @@ -337,7 +337,7 @@ static void perf_cost(void) "%luns per coroutine", maxcycles, duration, ops, - (unsigned long)(1000000000 * duration) / maxcycles); + (unsigned long)(1000000000.0 * duration / maxcycles)); } int main(int argc, char **argv)