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migration/dirtyrate: Implement qmp_cal_dirty_rate()/qmp_get_dirty_rate() function

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Implement qmp_cal_dirty_rate()/qmp_get_dirty_rate() function which could be called

Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
Message-Id: <1600237327-33618-12-git-send-email-zhengchuan@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  atomic function fixup
  Wording fixup in migration.json based on Eric's review
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Chuan Zheng 2020-09-16 14:22:06 +08:00 • committed by Dr. David Alan Gilbert
parent cf0bbb49d8
commit 4c437254b8
2 changed files with 112 additions and 0 deletions
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50
qapi/migration.json
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@ -1737,3 +1737,53 @@
##
{ 'enum': 'DirtyRateStatus',
'data': [ 'unstarted', 'measuring', 'measured'] }
##
# @DirtyRateInfo:
#
# Information about current dirty page rate of vm.
#
# @dirty-rate: @dirtyrate describing the dirty page rate of vm
# in units of MB/s.
# If this field returns '-1', it means querying has not
# yet started or completed.
#
# @status: status containing dirtyrate query status includes
# 'unstarted' or 'measuring' or 'measured'
#
# @start-time: start time in units of second for calculation
#
# @calc-time: time in units of second for sample dirty pages
#
# Since: 5.2
#
##
{ 'struct': 'DirtyRateInfo',
'data': {'dirty-rate': 'int64',
'status': 'DirtyRateStatus',
'start-time': 'int64',
'calc-time': 'int64'} }
##
# @calc-dirty-rate:
#
# start calculating dirty page rate for vm
#
# @calc-time: time in units of second for sample dirty pages
#
# Since: 5.2
#
# Example:
# {"command": "calc-dirty-rate", "data": {"calc-time": 1} }
#
##
{ 'command': 'calc-dirty-rate', 'data': {'calc-time': 'int64'} }
##
# @query-dirty-rate:
#
# query dirty page rate in units of MB/s for vm
#
# Since: 5.2
##
{ 'command': 'query-dirty-rate', 'returns': 'DirtyRateInfo' }