From cb38fffbc968e797ae32039b1e2c47b940b30cb4 Mon Sep 17 00:00:00 2001 From: Alberto Garcia Date: Wed, 28 Oct 2015 17:33:02 +0200 Subject: 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 Message-id: 7d8cfcf931453e1a2443e6626e8c1edc347c7c8a.1446044837.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- qmp-commands.hx | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'qmp-commands.hx') diff --git a/qmp-commands.hx b/qmp-commands.hx index ede18bf..5c4c16f 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -2583,6 +2583,10 @@ Each json-object contain the following: another request (json-int) - "wr_merged": number of write requests that have been merged into another request (json-int) + - "idle_time_ns": time since the last I/O operation, in + nanoseconds. If the field is absent it means + that there haven't been any operations yet + (json-int, optional) - "parent": Contains recursively the statistics of the underlying protocol (e.g. the host file for a qcow2 image). If there is no underlying protocol, this field is omitted @@ -2607,7 +2611,8 @@ Example: "flush_total_times_ns":49653 "flush_operations":61, "rd_merged":0, - "wr_merged":0 + "wr_merged":0, + "idle_time_ns":2953431879 } }, "stats":{ @@ -2621,7 +2626,8 @@ Example: "rd_total_times_ns":3465673657 "flush_total_times_ns":49653, "rd_merged":0, - "wr_merged":0 + "wr_merged":0, + "idle_time_ns":2953431879 } }, { -- cgit v1.1