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Diffstat (limited to 'docs/devel/migration.rst')
| -rw-r--r-- | docs/devel/migration.rst | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/docs/devel/migration.rst b/docs/devel/migration.rst index 015a9ebdf7..bf97080dac 100644 --- a/docs/devel/migration.rst +++ b/docs/devel/migration.rst @@ -401,20 +401,6 @@ 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. -That metric is calculated both for all vCPUs as overlapped value, and -separately for each vCPU. These values are 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. -postcopy-blocktime value of qmp command will show overlapped blocking -time for all vCPU, postcopy-vcpu-blocktime will show list of blocking -time per vCPU. - .. note:: During the postcopy phase, the bandwidth limits set using ``migrate_set_speed`` is ignored (to avoid delaying requested pages that |