diff options
| author | Alberto Garcia <berto@igalia.com> | 2015-10-28 17:33:06 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2015-11-12 16:22:46 +0100 |
| commit | 96e4dedaff9922f87e4ec351d51d3f093198382a (patch) | |
| tree | 4f13bd41dbde11ddedeb6ce30d0ae0ca11e8ea6e /include | |
| parent | 979e9b03fc8c85d3b78a14410c64cbb16d348095 (diff) | |
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')
| -rw-r--r-- | include/block/accounting.h | 2 | ||||
| -rw-r--r-- | include/qemu/timed-average.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/include/block/accounting.h b/include/block/accounting.h index 1dd582a99a..482926b8ec 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 diff --git a/include/qemu/timed-average.h b/include/qemu/timed-average.h index f1cdddc48b..364bf88f70 100644 --- a/include/qemu/timed-average.h +++ b/include/qemu/timed-average.h @@ -59,5 +59,6 @@ void timed_average_account(TimedAverage *ta, uint64_t value); uint64_t timed_average_min(TimedAverage *ta); uint64_t timed_average_avg(TimedAverage *ta); uint64_t timed_average_max(TimedAverage *ta); +uint64_t timed_average_sum(TimedAverage *ta, uint64_t *elapsed); #endif |