motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-06 09:13:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

migration/postcopy: Add max-postcopy-bandwidth parameter

Browse source 
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>
This commit is contained in:
Dr. David Alan Gilbert 2018-06-13 11:26:40 +01:00
parent b734035b61
commit 7e555c6c58
3 changed files with 57 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

19
qapi/migration.json
View file

@ -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: