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Fri, 16 Jun 2017 20:12:24 +0100 (BST) From: Alexey Perevalov To: qemu-devel@nongnu.org Date: Fri, 16 Jun 2017 22:12:05 +0300 Message-id: <1497640325-10960-9-git-send-email-a.perevalov@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1497640325-10960-1-git-send-email-a.perevalov@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrJIsWRmVeSWpSXmKPExsWy7djPc7ozdV0iDQ6tkLeYe/c8i0Xvtnvs Flfaf7JbbNn/jd3ieO8OFos7W/qYHNg8nlzbzOTxft9VNo++LasYA5ijuGxSUnMyy1KL9O0S uDLmz/vJXjCds2L/xnUsDYzX2LsYOTkkBEwkVh3Zwghhi0lcuLeerYuRi0NIYCmjxPZtu1kg nM+MEq9u/mfqYuQA62j4bgkRX8Yo0XatgQ2kW0igm0ni7INckBo2AQOJffdsQcIiApISv7tO M4PUMwu0Mkq09z1iBkkICzhLnNo/gxXEZhFQlZjaO40FxOYVcJfY+ng/K8RFchInj01mBZnJ KeAhcXyTH0T4PpvEjgNuEOfISmw6wAwRdpHY+foblC0s8er4FqgfZSQuT+4Ge0VCoJ1Rontn JyuEM4FR4sz0v1BV9hKnbl5lArGZBfgkJm2bzgyxgFeio00IosRDYu/PbqjTHCWOzH0BDZ/Z jBInD71nmcAos4CRYRWjSGppcW56arGRXnFibnFpXrpecn7uJkZghJ7+d/zjDsb3J6wOMQpw MCrx8DLcdo4UYk0sK67MPcQowcGsJMJrr+MSKcSbklhZlVqUH19UmpNafIhRmoNFSZyX69S1 CCGB9MSS1OzU1ILUIpgsEwenVAOjl04Gm/nN35t55kyzVLgwhTGkb2vjj5TzzMs8tn2q1VXa O9lkWcfiuslVCk8fLeF72vNU1CntR4WZ2Oa/qXve7dL9FhowKfztyxNbA+yumG3tWNBplMfc wfvxYuqnX0fVNDtiT3BsOykWcrSMT6ld+a2E9IeUiambdtaw/0x50TbHsKPIco2EEktxRqKh FnNRcSIA9JbGnMwCAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrJLMWRmVeSWpSXmKPExsVy+t/xy7ozdF0iDU68lrSYe/c8i0Xvtnvs Flfaf7JbbNn/jd3ieO8OFos7W/qYHNg8nlzbzOTxft9VNo++LasYA5ij3GwyUhNTUosUUvOS 81My89JtlUJD3HQtlBTyEnNTbZUidH1DgpQUyhJzSoE8IwM04OAc4B6spG+X4JYxf95P9oLp nBX7N65jaWC8xt7FyMEhIWAi0fDdsouRE8gUk7hwbz1bFyMXh5DAEkaJ/mN9LBBOL5PEuiNf WUEa2AQMJPbdswVpEBGQlPjddZoZpIZZoJVR4knjLHaQhLCAs8Sp/TNYQWwWAVWJqb3TWEBs XgF3ia2P97NCbJOTOHlsMthMTgEPieOb/EDCQkAlW7bsYJnAyLuAkWEVo0hqaXFuem6xkV5x Ym5xaV66XnJ+7iZGYLBuO/Zzyw7GrnfBhxgFOBiVeHgj7zpHCrEmlhVX5h5ilOBgVhLhtddx iRTiTUmsrEotyo8vKs1JLT7EaAp000RmKdHkfGAk5ZXEG5oYmlsaGhlbWJgbGSmJ8079cCVc SCA9sSQ1OzW1ILUIpo+Jg1OqgXGx2q44jwXPjMzjD87e//3UElahgvhdPjPCXaasfMUtY+Ie r8nf1tTJlZM7j42rgV/Ct1nFxDmS/YnolY6iN36rHuytzVJ7uSbgnKXso08Vb+3eai19+evC R89HR0o7FIw/+qpNi3bXncT2Ze6PSfx+d5kqn6XfemnxuaJP0alIQK2V8Wf6ViWW4oxEQy3m ouJEAG7LWvtsAgAA X-MTR: 20000000000000000@CPGS X-CMS-MailID: 20170616191224eucas1p2e8c1ff33f630b6beaff096b73ab3462b X-Msg-Generator: CA X-Sender-IP: 182.198.249.180 X-Local-Sender: =?UTF-8?B?QWxleGV5IFBlcmV2YWxvdhtTUlItVmlydHVhbGl6YXRpb24g?= =?UTF-8?B?TGFiG+yCvOyEseyghOyekBtTZW5pb3IgRW5naW5lZXI=?= X-Global-Sender: =?UTF-8?B?QWxleGV5IFBlcmV2YWxvdhtTUlItVmlydHVhbGl6YXRpb24g?= =?UTF-8?B?TGFiG1NhbXN1bmcgRWxlY3Ryb25pY3MbU2VuaW9yIEVuZ2luZWVy?= X-Sender-Code: =?UTF-8?B?QzEwG0NJU0hRG0MxMEdEMDFHRDAxMDE1NA==?= CMS-TYPE: 201P X-HopCount: 7 X-CMS-RootMailID: 20170616191224eucas1p2e8c1ff33f630b6beaff096b73ab3462b X-RootMTR: 20170616191224eucas1p2e8c1ff33f630b6beaff096b73ab3462b References: <1497640325-10960-1-git-send-email-a.perevalov@samsung.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 210.118.77.11 Subject: [Qemu-devel] [PATCH v9 8/8] migration: postcopy_blocktime documentation 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: i.maximets@samsung.com, dgilbert@redhat.com, Alexey Perevalov , peterx@redhat.com, quintela@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Alexey Perevalov --- docs/devel/migration.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/docs/devel/migration.txt b/docs/devel/migration.txt index 1b940a8..4b625ca 100644 --- a/docs/devel/migration.txt +++ b/docs/devel/migration.txt @@ -402,6 +402,16 @@ will now cause the transition from precopy to postcopy. It can be issued immediately after migration is started or any time later on. Issuing it after the end of a migration is harmless. +Blocktime is a postcopy live migration metric, intended to show +how long the vCPU was in state of interruptable sleep due to pagefault. +This value is calculated on destination side. +To enable postcopy blocktime calculation, enter following command on destination +monitor: + +migrate_set_capability postcopy-blocktime on + +Postcopy blocktime can be retrieved by query-migrate qmp command. + Note: During the postcopy phase, the bandwidth limits set using migrate_set_speed is ignored (to avoid delaying requested pages that the destination is waiting for).