From patchwork Mon Nov 30 17:21:22 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kiszka X-Patchwork-Id: 39824 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 E60821007D3 for ; Tue, 1 Dec 2009 04:50:18 +1100 (EST) Received: from localhost ([127.0.0.1]:38835 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NFAO8-0007ud-90 for incoming@patchwork.ozlabs.org; Mon, 30 Nov 2009 12:50:16 -0500 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NFA2g-0003oI-IZ for qemu-devel@nongnu.org; Mon, 30 Nov 2009 12:28:07 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NFA2W-0003gl-Gx for qemu-devel@nongnu.org; Mon, 30 Nov 2009 12:28:01 -0500 Received: from [199.232.76.173] (port=36074 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NFA2V-0003gA-Qo for qemu-devel@nongnu.org; Mon, 30 Nov 2009 12:27:56 -0500 Received: from david.siemens.de ([192.35.17.14]:22223) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1NFA2U-0004fW-VH for qemu-devel@nongnu.org; Mon, 30 Nov 2009 12:27:55 -0500 Received: from mail1.siemens.de (localhost [127.0.0.1]) by david.siemens.de (8.12.11.20060308/8.12.11) with ESMTP id nAUHRplk025465; Mon, 30 Nov 2009 18:27:51 +0100 Received: from [139.25.109.167] (mchn012c.ww002.siemens.net [139.25.109.167] (may be forged)) by mail1.siemens.de (8.12.11.20060308/8.12.11) with ESMTP id nAUHRo0H001989; Mon, 30 Nov 2009 18:27:50 +0100 Resent-From: Jan Kiszka Resent-To: Anthony Liguori Resent-Cc: qemu-devel , Liran Schour , Pierre Riteau Resent-Date: Mon, 30 Nov 2009 18:27:50 +0100 Resent-Message-Id: <4B140096.8040803@siemens.com> Resent-User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 From: Jan Kiszka To: Anthony Liguori Date: Mon, 30 Nov 2009 18:21:22 +0100 Message-ID: <20091130172121.22889.28291.stgit@mchn012c.ww002.siemens.net> In-Reply-To: <20091130172119.22889.28114.stgit@mchn012c.ww002.siemens.net> References: <20091130172119.22889.28114.stgit@mchn012c.ww002.siemens.net> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.4-2.6 Resent-Date: Mon, 30 Nov 2009 12:28:01 -0500 Cc: qemu-devel@nongnu.org, Liran Schour , Pierre Riteau Subject: [Qemu-devel] [PATCH 23/23] block migration: Increase dirty chunk size to 1M 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 4K is too small for efficiently saving and restoring multi-GB block devices. Signed-off-by: Jan Kiszka --- block.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/block.h b/block.h index 3513712..4a8b628 100644 --- a/block.h +++ b/block.h @@ -192,7 +192,7 @@ int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf, int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf, int64_t pos, int size); -#define BDRV_SECTORS_PER_DIRTY_CHUNK 8 +#define BDRV_SECTORS_PER_DIRTY_CHUNK 2048 void bdrv_set_dirty_tracking(BlockDriverState *bs, int enable); int bdrv_get_dirty(BlockDriverState *bs, int64_t sector);