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| author | Alberto Garcia | 2015-10-28 16:33:02 +0100 |
|---|---|---|
| committer | Kevin Wolf | 2015-11-12 16:22:45 +0100 |
| commit | cb38fffbc968e797ae32039b1e2c47b940b30cb4 (patch) | |
| tree | d28bdc71d24992460b50951def2de9c3a129f2c3 /block/qapi.c | |
| parent | util: Infrastructure for computing recent averages (diff) | |
| download | qemu-cb38fffbc968e797ae32039b1e2c47b940b30cb4.tar.gz qemu-cb38fffbc968e797ae32039b1e2c47b940b30cb4.tar.xz qemu-cb38fffbc968e797ae32039b1e2c47b940b30cb4.zip | |
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 <berto@igalia.com>
Message-id: 7d8cfcf931453e1a2443e6626e8c1edc347c7c8a.1446044837.git.berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qapi.c')
| -rw-r--r-- | block/qapi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/block/qapi.c b/block/qapi.c index 89d4274177..9799656761 100644 --- a/block/qapi.c +++ b/block/qapi.c @@ -357,6 +357,11 @@ static BlockStats *bdrv_query_stats(const BlockDriverState *bs, s->stats->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; s->stats->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; s->stats->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; + + s->stats->has_idle_time_ns = stats->last_access_time_ns > 0; + if (s->stats->has_idle_time_ns) { + s->stats->idle_time_ns = block_acct_idle_time_ns(stats); + } } s->stats->wr_highest_offset = bs->wr_highest_offset; |