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authorDr. David Alan Gilbert <dgilbert@redhat.com>2018-06-13 11:26:40 +0100
committerDr. David Alan Gilbert <dgilbert@redhat.com>2018-06-15 14:40:56 +0100
commit7e555c6c58f095c9286814c3f9cd06196feba8a1 (patch)
treec6bc6247dd3874995257814a2ccc8bfa04bed6b8 /qapi
parentb734035b61c0943c11bc591549d81de3ed7c0029 (diff)
migration/postcopy: Add max-postcopy-bandwidth parameter
Limit the background transfer bandwidth during the postcopy phase to the value set on this new parameter. The default, 0, corresponds to the existing behaviour which is unlimited bandwidth. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20180613102642.23995-2-dgilbert@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'qapi')
-rw-r--r--qapi/migration.json19
1 files changed, 16 insertions, 3 deletions
diff --git a/qapi/migration.json b/qapi/migration.json
index f7e10ee90f..1b4c1db670 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -517,6 +517,9 @@
# and a power of 2
# (Since 2.11)
#
+# @max-postcopy-bandwidth: Background transfer bandwidth during postcopy.
+# Defaults to 0 (unlimited). In bytes per second.
+# (Since 3.0)
# Since: 2.4
##
{ 'enum': 'MigrationParameter',
@@ -525,7 +528,7 @@
'tls-creds', 'tls-hostname', 'max-bandwidth',
'downtime-limit', 'x-checkpoint-delay', 'block-incremental',
'x-multifd-channels', 'x-multifd-page-count',
- 'xbzrle-cache-size' ] }
+ 'xbzrle-cache-size', 'max-postcopy-bandwidth' ] }
##
# @MigrateSetParameters:
@@ -593,6 +596,10 @@
# needs to be a multiple of the target page size
# and a power of 2
# (Since 2.11)
+#
+# @max-postcopy-bandwidth: Background transfer bandwidth during postcopy.
+# Defaults to 0 (unlimited). In bytes per second.
+# (Since 3.0)
# Since: 2.4
##
# TODO either fuse back into MigrationParameters, or make
@@ -611,7 +618,8 @@
'*block-incremental': 'bool',
'*x-multifd-channels': 'int',
'*x-multifd-page-count': 'int',
- '*xbzrle-cache-size': 'size' } }
+ '*xbzrle-cache-size': 'size',
+ '*max-postcopy-bandwidth': 'size' } }
##
# @migrate-set-parameters:
@@ -694,6 +702,10 @@
# needs to be a multiple of the target page size
# and a power of 2
# (Since 2.11)
+#
+# @max-postcopy-bandwidth: Background transfer bandwidth during postcopy.
+# Defaults to 0 (unlimited). In bytes per second.
+# (Since 3.0)
# Since: 2.4
##
{ 'struct': 'MigrationParameters',
@@ -710,7 +722,8 @@
'*block-incremental': 'bool' ,
'*x-multifd-channels': 'uint8',
'*x-multifd-page-count': 'uint32',
- '*xbzrle-cache-size': 'size' } }
+ '*xbzrle-cache-size': 'size',
+ '*max-postcopy-bandwidth': 'size' } }
##
# @query-migrate-parameters: