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authorXiao Guangrong <xiaoguangrong@tencent.com>2018-09-06 15:01:00 +0800
committerDr. David Alan Gilbert <dgilbert@redhat.com>2018-09-26 12:27:27 +0100
commit76e030004f7fbabc2f978e8cd44052e17abd55b2 (patch)
treea082f6700d63b14e26cdba005e42f06640dff2b5 /qapi/migration.json
parent48df9d8002914137b0a1e5c4ca4d402224f205f9 (diff)
downloadfocaccia-qemu-76e030004f7fbabc2f978e8cd44052e17abd55b2.tar.gz
focaccia-qemu-76e030004f7fbabc2f978e8cd44052e17abd55b2.zip
migration: show the statistics of compression
Currently, it includes:
pages: amount of pages compressed and transferred to the target VM
busy: amount of count that no free thread to compress data
busy-rate: rate of thread busy
compressed-size: amount of bytes after compression
compression-rate: rate of compressed size

Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Message-Id: <20180906070101.27280-3-xiaoguangrong@tencent.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'qapi/migration.json')
-rw-r--r--qapi/migration.json26
1 files changed, 25 insertions, 1 deletions
diff --git a/qapi/migration.json b/qapi/migration.json
index f62d3f9a4b..6e8c21258a 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -76,6 +76,27 @@
            'overflow': 'int' } }
 
 ##
+# @CompressionStats:
+#
+# Detailed migration compression statistics
+#
+# @pages: amount of pages compressed and transferred to the target VM
+#
+# @busy: count of times that no free thread was available to compress data
+#
+# @busy-rate: rate of thread busy
+#
+# @compressed-size: amount of bytes after compression
+#
+# @compression-rate: rate of compressed size
+#
+# Since: 3.1
+##
+{ 'struct': 'CompressionStats',
+  'data': {'pages': 'int', 'busy': 'int', 'busy-rate': 'number',
+	   'compressed-size': 'int', 'compression-rate': 'number' } }
+
+##
 # @MigrationStatus:
 #
 # An enumeration of migration status.
@@ -172,6 +193,8 @@
 #           only present when the postcopy-blocktime migration capability
 #           is enabled. (Since 3.0)
 #
+# @compression: migration compression statistics, only returned if compression
+#           feature is on and status is 'active' or 'completed' (Since 3.1)
 #
 # Since: 0.14.0
 ##
@@ -186,7 +209,8 @@
            '*cpu-throttle-percentage': 'int',
            '*error-desc': 'str',
            '*postcopy-blocktime' : 'uint32',
-           '*postcopy-vcpu-blocktime': ['uint32']} }
+           '*postcopy-vcpu-blocktime': ['uint32'],
+           '*compression': 'CompressionStats'} }
 
 ##
 # @query-migrate: