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authorAlberto Garcia <berto@igalia.com>2015-10-28 17:33:06 +0200
committerKevin Wolf <kwolf@redhat.com>2015-11-12 16:22:46 +0100
commit96e4dedaff9922f87e4ec351d51d3f093198382a (patch)
tree4f13bd41dbde11ddedeb6ce30d0ae0ca11e8ea6e /include/block
parent979e9b03fc8c85d3b78a14410c64cbb16d348095 (diff)
downloadhqemu-96e4dedaff9922f87e4ec351d51d3f093198382a.zip
hqemu-96e4dedaff9922f87e4ec351d51d3f093198382a.tar.gz
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 <berto@igalia.com> Message-id: fd31fef53e2714f2f30d59ed58ca2f67ec9ab926.1446044837.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block')
-rw-r--r--include/block/accounting.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/block/accounting.h b/include/block/accounting.h
index 1dd582a..482926b 100644
--- a/include/block/accounting.h
+++ b/include/block/accounting.h
@@ -78,5 +78,7 @@ void block_acct_invalid(BlockAcctStats *stats, enum BlockAcctType type);
void block_acct_merge_done(BlockAcctStats *stats, enum BlockAcctType type,
int num_requests);
int64_t block_acct_idle_time_ns(BlockAcctStats *stats);
+double block_acct_queue_depth(BlockAcctTimedStats *stats,
+ enum BlockAcctType type);
#endif
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