From patchwork Wed Feb 20 11:56:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 1045300 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=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 444GT510ytz9s71 for ; Wed, 20 Feb 2019 23:03:05 +1100 (AEDT) Received: from localhost ([127.0.0.1]:38876 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gwQac-0003ag-Uy for incoming@patchwork.ozlabs.org; Wed, 20 Feb 2019 07:03:03 -0500 Received: from eggs.gnu.org ([209.51.188.92]:37191) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gwQUt-0007N1-0v for qemu-devel@nongnu.org; Wed, 20 Feb 2019 06:57:11 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gwQUp-0002hK-9T for qemu-devel@nongnu.org; Wed, 20 Feb 2019 06:57:04 -0500 Received: from mx1.redhat.com ([209.132.183.28]:40086) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gwQUp-0001OU-2r for qemu-devel@nongnu.org; Wed, 20 Feb 2019 06:57:03 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 922F23DE10 for ; Wed, 20 Feb 2019 11:56:46 +0000 (UTC) Received: from localhost.localdomain (ovpn-117-2.ams2.redhat.com [10.36.117.2]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8D590600C0; Wed, 20 Feb 2019 11:56:44 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Date: Wed, 20 Feb 2019 12:56:09 +0100 Message-Id: <20190220115611.3192-7-quintela@redhat.com> In-Reply-To: <20190220115611.3192-1-quintela@redhat.com> References: <20190220115611.3192-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Wed, 20 Feb 2019 11:56:46 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 6/8] multifd: Change default packet size 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: Laurent Vivier , Thomas Huth , Juan Quintela , "Dr. David Alan Gilbert" , Markus Armbruster , Paolo Bonzini Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" We moved from 64KB to 512KB, as it makes less locking contention without any downside in testing. Signed-off-by: Juan Quintela Reviewed-by: Dr. David Alan Gilbert --- migration/ram.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/migration/ram.c b/migration/ram.c index 75a8fc21f8..d57db00ce4 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -521,7 +521,7 @@ exit: #define MULTIFD_FLAG_SYNC (1 << 0) /* This value needs to be a multiple of qemu_target_page_size() */ -#define MULTIFD_PACKET_SIZE (64 * 1024) +#define MULTIFD_PACKET_SIZE (512 * 1024) typedef struct { uint32_t magic;