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authorAlberto Garcia <berto@igalia.com>2015-10-28 17:33:05 +0200
committerKevin Wolf <kwolf@redhat.com>2015-11-12 16:22:45 +0100
commit979e9b03fc8c85d3b78a14410c64cbb16d348095 (patch)
treeacadf4f7a6bf98a4ce5363ea40a5658542949640 /qemu-io-cmds.c
parent362e9299b34b3101aaa20f20363441c9f055fa5e (diff)
downloadfocaccia-qemu-979e9b03fc8c85d3b78a14410c64cbb16d348095.tar.gz
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block: Compute minimum, maximum and average I/O latencies
This patch keeps track of the minimum, maximum and average latencies
of I/O operations during a certain interval of time.

The values are exposed in the BlockDeviceTimedStats structure.

An option to define the intervals to collect these statistics will be
added in a separate patch.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: c7382dc89622c64f918d09f32815827772628f8e.1446044837.git.berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qemu-io-cmds.c')
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