From 96e4dedaff9922f87e4ec351d51d3f093198382a Mon Sep 17 00:00:00 2001 From: Alberto Garcia Date: Wed, 28 Oct 2015 17:33:06 +0200 Subject: block: Add average I/O queue depth to BlockDeviceTimedStats This patch adds two new fields to BlockDeviceTimedStats that track the average number of pending read and write requests for a block device. The values are calculated for the period of time defined for that interval. Signed-off-by: Alberto Garcia Message-id: fd31fef53e2714f2f30d59ed58ca2f67ec9ab926.1446044837.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- qapi/block-core.json | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'qapi') diff --git a/qapi/block-core.json b/qapi/block-core.json index 80470da574..6fd68a6d24 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -450,6 +450,12 @@ # @avg_flush_latency_ns: Average latency of flush operations in the # defined interval, in nanoseconds. # +# @avg_rd_queue_depth: Average number of pending read operations +# in the defined interval. +# +# @avg_wr_queue_depth: Average number of pending write operations +# in the defined interval. +# # Since: 2.5 ## @@ -458,7 +464,8 @@ 'max_rd_latency_ns': 'int', 'avg_rd_latency_ns': 'int', 'min_wr_latency_ns': 'int', 'max_wr_latency_ns': 'int', 'avg_wr_latency_ns': 'int', 'min_flush_latency_ns': 'int', - 'max_flush_latency_ns': 'int', 'avg_flush_latency_ns': 'int' } } + 'max_flush_latency_ns': 'int', 'avg_flush_latency_ns': 'int', + 'avg_rd_queue_depth': 'number', 'avg_wr_queue_depth': 'number' } } ## # @BlockDeviceStats: -- cgit v1.2.3-55-g7522