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qmp/hmp: Add throttle ratio to query-migrate and info migrate 

Report throttle percentage in info migrate and query-migrate responses when
cpu throttling is active.

Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Jason J. Herne 2015-09-08 13:12:36 -04:00 committed by Juan Quintela
parent 070afca258
commit 4782893e09
3 changed files with 16 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
hmp.c
View File

@ -232,6 +232,11 @@ void hmp_info_migrate(Monitor *mon, const QDict *qdict)
info->xbzrle_cache->overflow);
}
if (info->has_x_cpu_throttle_percentage) {
monitor_printf(mon, "cpu throttle percentage: %" PRIu64 "\n",
info->x_cpu_throttle_percentage);
}
qapi_free_MigrationInfo(info);
qapi_free_MigrationCapabilityStatusList(caps);
}

5
migration/migration.c
View File

@ -447,6 +447,11 @@ MigrationInfo *qmp_query_migrate(Error **errp)
info->disk->total = blk_mig_bytes_total();
}
if (cpu_throttle_active()) {
info->has_x_cpu_throttle_percentage = true;
info->x_cpu_throttle_percentage = cpu_throttle_get_percentage();
}
get_xbzrle_cache_stats(info);
break;
case MIGRATION_STATUS_COMPLETED:

7
qapi-schema.json
View File

@ -480,6 +480,10 @@
# may be expensive, but do not actually occur during the iterative
# migration rounds themselves. (since 1.6)
#
# @x-cpu-throttle-percentage: #optional percentage of time guest cpus are being
# throttled during auto-converge. This is only present when auto-converge
# has started throttling guest cpus. (Since 2.5)
#
# Since: 0.14.0
##
{ 'struct': 'MigrationInfo',
@ -489,7 +493,8 @@
'*total-time': 'int',
'*expected-downtime': 'int',
'*downtime': 'int',
'*setup-time': 'int'} }
'*setup-time': 'int',
'*x-cpu-throttle-percentage': 'int'} }
##
# @query-migrate