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authorAlberto Garcia <berto@igalia.com>2015-10-28 17:33:02 +0200
committerKevin Wolf <kwolf@redhat.com>2015-11-12 16:22:45 +0100
commitcb38fffbc968e797ae32039b1e2c47b940b30cb4 (patch)
treed28bdc71d24992460b50951def2de9c3a129f2c3 /qapi
parentbd797fc15b4290e02c219b7cd6289a33cd6cd18b (diff)
block: Add idle_time_ns to BlockDeviceStats
This patch adds the new field 'idle_time_ns' to the BlockDeviceStats structure, indicating the time that has passed since the previous I/O operation. It also adds the block_acct_idle_time_ns() call, to ensure that all references to the clock type used for accounting are in the same place. This will later allow us to use a different clock for iotests. Signed-off-by: Alberto Garcia <berto@igalia.com> Message-id: 7d8cfcf931453e1a2443e6626e8c1edc347c7c8a.1446044837.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qapi')
-rw-r--r--qapi/block-core.json6
1 files changed, 5 insertions, 1 deletions
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 470e86c6df..597281821b 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -448,6 +448,10 @@
# @wr_merged: Number of write requests that have been merged into another
# request (Since 2.3).
#
+# @idle_time_ns: #optional Time since the last I/O operation, in
+# nanoseconds. If the field is absent it means that
+# there haven't been any operations yet (Since 2.5).
+#
# Since: 0.14.0
##
{ 'struct': 'BlockDeviceStats',
@@ -455,7 +459,7 @@
'wr_operations': 'int', 'flush_operations': 'int',
'flush_total_time_ns': 'int', 'wr_total_time_ns': 'int',
'rd_total_time_ns': 'int', 'wr_highest_offset': 'int',
- 'rd_merged': 'int', 'wr_merged': 'int' } }
+ 'rd_merged': 'int', 'wr_merged': 'int', '*idle_time_ns': 'int' } }
##
# @BlockStats: