在 2022/9/2 16:03, Markus Armbruster 写道:
huang...@chinatelecom.cn writes:
From: Hyman Huang(黄勇) <huang...@chinatelecom.cn>
Introduce "x-vcpu-dirty-limit" migration parameter used
to limit dirty page rate during live migration.
"x-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) <huang...@chinatelecom.cn>
[...]
diff --git a/qapi/migration.json b/qapi/migration.json
index 332c087..8554d33 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -779,6 +779,9 @@
# @x-vcpu-dirty-limit-period: Periodic time (ms) of dirty limit during live
migration.
# Defaults to 500ms. (Since 7.1)
#
+# @x-vcpu-dirty-limit: Dirtyrate limit (MB/s) during live migration.
+# Defaults to 1. (Since 7.1)
+#
# Features:
# @unstable: Member @x-checkpoint-delay and @x-vcpu-dirty-limit-period
# are experimental.
@@ -801,7 +804,8 @@
'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'] },
+ 'x-vcpu-dirty-limit'] }
Shouldn't 'x-vcpu-dirty-limit-period' have feature 'unstable', too?
Yes, i missed that, thanks very much.
Same below.
##
# @MigrateSetParameters:
@@ -949,6 +953,9 @@
# @x-vcpu-dirty-limit-period: Periodic time (ms) of dirty limit during live
migration.
# Defaults to 500ms. (Since 7.1)
#
+# @x-vcpu-dirty-limit: Dirtyrate limit (MB/s) during live migration.
+# Defaults to 1. (Since 7.1)
+#
# Features:
# @unstable: Member @x-checkpoint-delay and @x-vcpu-dirty-limit-period
# are experimental.
@@ -987,7 +994,8 @@
'*multifd-zstd-level': 'uint8',
'*block-bitmap-mapping': [ 'BitmapMigrationNodeAlias' ],
'*x-vcpu-dirty-limit-period': { 'type': 'uint64',
- 'features': [ 'unstable' ] } } }
+ 'features': [ 'unstable' ] },
+ '*x-vcpu-dirty-limit': 'uint64'} }
##
# @migrate-set-parameters:
@@ -1155,6 +1163,9 @@
# @x-vcpu-dirty-limit-period: Periodic time (ms) of dirty limit during live
migration.
# Defaults to 500ms. (Since 7.1)
#
+# @x-vcpu-dirty-limit: Dirtyrate limit (MB/s) during live migration.
+# Defaults to 1. (Since 7.1)
+#
# Features:
# @unstable: Member @x-checkpoint-delay and @x-vcpu-dirty-limit-period
# are experimental.
@@ -1191,7 +1202,8 @@
'*multifd-zstd-level': 'uint8',
'*block-bitmap-mapping': [ 'BitmapMigrationNodeAlias' ],
'*x-vcpu-dirty-limit-period': { 'type': 'uint64',
- 'features': [ 'unstable' ] } } }
+ 'features': [ 'unstable' ] },
+ '*x-vcpu-dirty-limit': 'uint64'} }
##
# @query-migrate-parameters:
--
Best regard
Hyman Huang(黄勇)
