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block: Allow configuring whether to account failed and invalid ops

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This patch adds two options, "stats-account-invalid" and
"stats-account-failed", that can be used to decide whether invalid and
failed I/O operations must be used when collecting statistics for
latency and last access time.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: ebc7e5966511a342cad428a392c5f5ad56b15213.1446044837.git.berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Alberto Garcia 2015-10-28 17:33:04 +02:00 • committed by Kevin Wolf
parent 7ee12dafe9
commit 362e9299b3
6 changed files with 79 additions and 11 deletions
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25
qmp-commands.hx
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@ -2599,6 +2599,11 @@ Each json-object contain the following:
(json-int)
- "invalid_flush_operations": number of invalid flush operations
(json-int)
- "account_invalid": whether invalid operations are included in
the last access statistics (json-bool)
- "account_failed": whether failed operations are included in the
latency and last access statistics
(json-bool)
- "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
@ -2624,7 +2629,9 @@ Example:
"flush_operations":61,
"rd_merged":0,
"wr_merged":0,
"idle_time_ns":2953431879
"idle_time_ns":2953431879,
"account_invalid":true,
"account_failed":false
}
},
"stats":{
@ -2639,7 +2646,9 @@ Example:
"flush_total_times_ns":49653,
"rd_merged":0,
"wr_merged":0,
"idle_time_ns":2953431879
"idle_time_ns":2953431879,
"account_invalid":true,
"account_failed":false
}
},
{
@ -2655,7 +2664,9 @@ Example:
"rd_total_times_ns":0
"flush_total_times_ns":0,
"rd_merged":0,
"wr_merged":0
"wr_merged":0,
"account_invalid":false,
"account_failed":false
}
},
{
@ -2671,7 +2682,9 @@ Example:
"rd_total_times_ns":0
"flush_total_times_ns":0,
"rd_merged":0,
"wr_merged":0
"wr_merged":0,
"account_invalid":false,
"account_failed":false
}
},
{
@ -2687,7 +2700,9 @@ Example:
"rd_total_times_ns":0
"flush_total_times_ns":0,
"rd_merged":0,
"wr_merged":0
"wr_merged":0,
"account_invalid":false,
"account_failed":false
}
}
]