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Wed, 07 Jun 2017 10:47:32 +0100 (BST) From: Alexey Perevalov To: qemu-devel@nongnu.org Date: Wed, 07 Jun 2017 12:46:38 +0300 Message-id: <1496828798-27548-12-git-send-email-a.perevalov@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1496828798-27548-1-git-send-email-a.perevalov@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrKIsWRmVeSWpSXmKPExsWy7djPc7pbTptHGqy6am4x9+55FovebffY La60/2S32LL/G7vF8d4dLA6sHk+ubWbyeL/vKptH35ZVjAHMUVw2Kak5mWWpRfp2CVwZD07e Zyn4zlEx6/1T9gbGbexdjJwcEgImEg2/3rJA2GISF+6tZ+ti5OIQEljKKHFiZhOU85lRomn1 TtYuRg6wjnXvDSHiyxglHs7fxAjhdDNJ/Fp+mwWkiE3AQGLfPVuQqSICkhK/u04zg9jMAgUS H1tXgm0TFnCVeNF4kgmknEVAVWL1JEuQMK+Ah8SW8xcYIQ6Skzh5bDIriM0JFP8x9TYzyCoJ getsEkd/7WKDuEdWYtMBZoh6F4kJ+zuZIGxhiVfHt0A9KSNxeXI3C0RvO6NE985OVghnAqPE mel/oarsJU7dvMoEcSifxKRt05khFvBKdLQJQZR4SGzf9oINwnaU6NrUxw7x+2xGifOP97BM YJRZwMiwilEktbQ4Nz212FivODG3uDQvXS85P3cTIzAyT/87/mkH49cTVocYBTgYlXh4BXaZ RQqxJpYVV+YeYpTgYFYS4Z141DxSiDclsbIqtSg/vqg0J7X4EKM0B4uSOC/XqWsRQgLpiSWp 2ampBalFMFkmDk6pBkaLxQyRv84eN16w+xoHswZHpveMPoP1RVJ2+a8Z3svstWB+x/xtstS9 ivBE1z2zO/5uCZ+acrza7hk/2+lbT55P7vmyRzlo7afna4v36ryoEJf6JrqTc2Wt7LuNfzp5 nNx1gzhtMmcU9/tPyd6ww3yvcIdMztaC1BX+hYta5R5yfd6/skSi6p0SS3FGoqEWc1FxIgCW V6z3yAIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrELMWRmVeSWpSXmKPExsVy+t/xy7pbTptHGlz9yGwx9+55FovebffY La60/2S32LL/G7vF8d4dLA6sHk+ubWbyeL/vKptH35ZVjAHMUW42GamJKalFCql5yfkpmXnp tkqhIW66FkoKeYm5qbZKEbq+IUFKCmWJOaVAnpEBGnBwDnAPVtK3S3DLeHDyPkvBd46KWe+f sjcwbmPvYuTgkBAwkVj33rCLkRPIFJO4cG89WxcjF4eQwBJGiUdHrjCBJIQEepkk5mzjBqln EzCQ2HfPFiQsIiAp8bvrNDOIzSxQIHFu8hQWEFtYwFXiReNJJpByFgFVidWTLEHCvAIeElvO X2CEWCUncfLYZFYQmxMo/mPqbWaITe4St++cYZrAyLuAkWEVo0hqaXFuem6xkV5xYm5xaV66 XnJ+7iZGYHhuO/Zzyw7GrnfBhxgFOBiVeHgz9phFCrEmlhVX5h5ilOBgVhLhnXjUPFKINyWx siq1KD++qDQntfgQoynQTROZpUST84Gxk1cSb2hiaG5paGRsYWFuZKQkzjv1w5VwIYH0xJLU 7NTUgtQimD4mDk6pBkZ75WLvnW9X7uD1TN947fsjax/bmens9mz9irlJrOpN715r9YVJSrO3 VWv1rOuI1nmQ/O7YajVG6WePtJx9vlh3Hlmjc+mEsJfzuj3WJVWTt4Y6G1nWah0UzameMNW2 vq/xp8qOZ4zZZ9gWuiZ3ezxq3XOoaYcGt9+d8oMm/HvLrHsXrjDYqcRSnJFoqMVcVJwIAP6u O9JlAgAA X-MTR: 20000000000000000@CPGS X-CMS-MailID: 20170607094732eucas1p199fb11b4189929a105515f6079415ebe 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: 20170607094732eucas1p199fb11b4189929a105515f6079415ebe X-RootMTR: 20170607094732eucas1p199fb11b4189929a105515f6079415ebe References: <1496828798-27548-1-git-send-email-a.perevalov@samsung.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 210.118.77.13 Subject: [Qemu-devel] [PATCH v8 11/11] 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, Alexey Perevalov , peterx@redhat.com, dgilbert@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 Reviewed-by: Juan Quintela --- docs/migration.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/docs/migration.txt b/docs/migration.txt index 1b940a8..4b625ca 100644 --- a/docs/migration.txt +++ b/docs/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).