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envelope-from=lukasstraub2@web.de; helo=mout.web.de X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/15 03:12:46 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel , Jason Wang , zhanghailiang , Li Zhijian , "Dr . David Alan Gilbert" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" --Sig_/nWtBU=aJAqbYdpefLvjVjLf Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Fri, 15 May 2020 03:16:18 +0000 "Zhang, Chen" wrote: > Hi Hailiang/Dave. >=20 > I found a urgent problem in current upstream code, COLO will stuck on sec= ondary checkpoint and later. > The guest will stuck by this issue. > I have bisect upstream code, this issue caused by Hailiang's optimize pat= ch: Hmm, I'm on v5.0.0 (where that commit is in) and I don't have this issue in= my testing. Regards, Lukas Straub > From 0393031a16735835a441b6d6e0495a1bd14adb90 Mon Sep 17 00:00:00 2001 > From: zhanghailiang > Date: Mon, 24 Feb 2020 14:54:10 +0800 > Subject: [PATCH] COLO: Optimize memory back-up process >=20 > This patch will reduce the downtime of VM for the initial process, > Previously, we copied all these memory in preparing stage of COLO > while we need to stop VM, which is a time-consuming process. > Here we optimize it by a trick, back-up every page while in migration > process while COLO is enabled, though it affects the speed of the > migration, but it obviously reduce the downtime of back-up all SVM'S > memory in COLO preparing stage. >=20 > Signed-off-by: zhanghailiang > Message-Id: <20200224065414.36524-5-zhang.zhanghailiang@huawei.com> > Signed-off-by: Dr. David Alan Gilbert > minor typo fixes >=20 > Hailiang, do you have time to look into it? >=20 > ... --Sig_/nWtBU=aJAqbYdpefLvjVjLf Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEg/qxWKDZuPtyYo+kNasLKJxdslgFAl6+QMgACgkQNasLKJxd slgrkw//ZonsKWA960c7NkDtfKFKVnT4+x02E8H4AKJF3MLDVh7xPx/j8iukVMTd 4ZgjR1Voe+vigjcHYW37WdNddcAsorxDFnVnq6w0uf0WflL04G5I7/p5LEJcXJOj eKyebFoL33tLBGL6+jM7bDSc1nmt4adyQBbOwhaE71yA5lxlXOVJh3Anj3i/V1sa qtW8E/Ew3PjEGmF8AZzCFsptJcyXgddHEwOaT+HOBzyvkMJxsJHH3R8Xf2ltWup9 G67lYg7U18dp3lkcebU/8txnS+51WUyc+Qg1snhWu94EmVfZSg2nfTzWxnT22Qcl Hd4w7or3FbVeFjAlUyraAShQYNRLlBwRPfdAYTHoPXwhjIqalGaGEG64dX89GHPr 6mTHei+0xnBm1NB7ujMdeTG/qLAqohsvoiSeqJJ3qJdrh3FcL0zx/29ADO35S9M1 RD3y8+pZ22U+o6xnpCjvbLBUxV7McEDExRLNQaj+wngsipp+bLFQrS3qUUdE931g oUf1q0kBpGQVMIYmoesObWlV6LfXlv+w4O9wCdGF4Ncvp1QScu2cuknKUm3w+gnt 1oACYPd2l5V5AQnohMKx4AYl0Tsvy9j37x36SLx1qJ8+ljOE9mIFr9w1R7Vsqvio c0YFe1BvzJGyYvFIFaZkgNN83BeleOzqlYpoeDFaaShz8c8AWi0= =atUk -----END PGP SIGNATURE----- --Sig_/nWtBU=aJAqbYdpefLvjVjLf--