On Fri, 15 May 2020 03:16:18 +0000 "Zhang, Chen" <chen.zh...@intel.com> wrote:
> Hi Hailiang/Dave. > > I found a urgent problem in current upstream code, COLO will stuck on > secondary checkpoint and later. > The guest will stuck by this issue. > I have bisect upstream code, this issue caused by Hailiang's optimize patch: 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 <zhang.zhanghaili...@huawei.com> > Date: Mon, 24 Feb 2020 14:54:10 +0800 > Subject: [PATCH] COLO: Optimize memory back-up process > > 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. > > Signed-off-by: zhanghailiang <zhang.zhanghaili...@huawei.com> > Message-Id: <20200224065414.36524-5-zhang.zhanghaili...@huawei.com> > Signed-off-by: Dr. David Alan Gilbert <dgilb...@redhat.com> > minor typo fixes > > Hailiang, do you have time to look into it? > > ...
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