motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-07 17:53:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

qapi/migration: Introduce vcpu-dirty-limit parameters

Browse source 
Introduce "vcpu-dirty-limit" migration parameter used
to limit dirty page rate during live migration.

"vcpu-dirty-limit" and "x-vcpu-dirty-limit-period" are
two dirty-limit-related migration parameters, which can
be set before and during live migration by qmp
migrate-set-parameters.

This two parameters are used to help implement the dirty
page rate limit algo of migration.

Signed-off-by: Hyman Huang(黄勇) <yong.huang@smartx.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <168618975839.6361.17407633874747688653-3@git.sr.ht>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Hyman Huang(黄勇) 2023-06-07 22:58:32 +08:00 • committed by Juan Quintela
parent 4d80785719
commit 09f9ec9913
3 changed files with 44 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

18
qapi/migration.json
View file

@ -793,6 +793,9 @@
# live migration. Should be in the range 1 to 1000ms,
# defaults to 1000ms. (Since 8.1)
#
# @vcpu-dirty-limit: Dirtyrate limit (MB/s) during live migration.
# Defaults to 1. (Since 8.1)
#
# Features:
#
# @unstable: Members @x-checkpoint-delay and @x-vcpu-dirty-limit-period
@ -816,7 +819,8 @@
'max-cpu-throttle', 'multifd-compression',
'multifd-zlib-level', 'multifd-zstd-level',
'block-bitmap-mapping',
{ 'name': 'x-vcpu-dirty-limit-period', 'features': ['unstable'] } ] }
{ 'name': 'x-vcpu-dirty-limit-period', 'features': ['unstable'] },
'vcpu-dirty-limit'] }
##
# @MigrateSetParameters:
@ -955,6 +959,9 @@
# live migration. Should be in the range 1 to 1000ms,
# defaults to 1000ms. (Since 8.1)
#
# @vcpu-dirty-limit: Dirtyrate limit (MB/s) during live migration.
# Defaults to 1. (Since 8.1)
#
# Features:
#
# @unstable: Members @x-checkpoint-delay and @x-vcpu-dirty-limit-period
@ -995,7 +1002,8 @@
'*multifd-zstd-level': 'uint8',
'*block-bitmap-mapping': [ 'BitmapMigrationNodeAlias' ],
'*x-vcpu-dirty-limit-period': { 'type': 'uint64',
'features': [ 'unstable' ] } } }
'features': [ 'unstable' ] },
'*vcpu-dirty-limit': 'uint64'} }
##
# @migrate-set-parameters:
@ -1154,6 +1162,9 @@
# live migration. Should be in the range 1 to 1000ms,
# defaults to 1000ms. (Since 8.1)
#
# @vcpu-dirty-limit: Dirtyrate limit (MB/s) during live migration.
# Defaults to 1. (Since 8.1)
#
# Features:
#
# @unstable: Members @x-checkpoint-delay and @x-vcpu-dirty-limit-period
@ -1191,7 +1202,8 @@
'*multifd-zstd-level': 'uint8',
'*block-bitmap-mapping': [ 'BitmapMigrationNodeAlias' ],
'*x-vcpu-dirty-limit-period': { 'type': 'uint64',
'features': [ 'unstable' ] } } }
'features': [ 'unstable' ] },
'*vcpu-dirty-limit': 'uint64'} }
##
# @query-migrate-parameters: