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authorKevin Wolf <kwolf@redhat.com>2016-02-26 19:02:30 +0100
committerKevin Wolf <kwolf@redhat.com>2016-03-14 16:46:42 +0100
commit2b77e60ab86e240a06f1ef117ecd488e85d6226e (patch)
tree6623497f7bb8b530386c18372e6d1239151ca974 /block/qapi.c
parent396374caeadf044bad0aae9447eeeb109ea8651c (diff)
downloadqemu-2b77e60ab86e240a06f1ef117ecd488e85d6226e.zip
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block/qapi: Factor out bdrv_query_blk_stats()
The new functions handles the data that is taken from the BlockBackend. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/qapi.c')
-rw-r--r--block/qapi.c131
1 files changed, 68 insertions, 63 deletions
diff --git a/block/qapi.c b/block/qapi.c
index db2d3fb..c04f1d8 100644
--- a/block/qapi.c
+++ b/block/qapi.c
@@ -355,6 +355,73 @@ static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info,
qapi_free_BlockInfo(info);
}
+static void bdrv_query_blk_stats(BlockStats *s, BlockBackend *blk)
+{
+ BlockAcctStats *stats = blk_get_stats(blk);
+ BlockAcctTimedStats *ts = NULL;
+
+ s->stats->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ];
+ s->stats->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE];
+ s->stats->rd_operations = stats->nr_ops[BLOCK_ACCT_READ];
+ s->stats->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE];
+
+ s->stats->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ];
+ s->stats->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE];
+ s->stats->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH];
+
+ s->stats->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ];
+ s->stats->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE];
+ s->stats->invalid_flush_operations =
+ stats->invalid_ops[BLOCK_ACCT_FLUSH];
+
+ s->stats->rd_merged = stats->merged[BLOCK_ACCT_READ];
+ s->stats->wr_merged = stats->merged[BLOCK_ACCT_WRITE];
+ s->stats->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH];
+ 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->account_invalid = stats->account_invalid;
+ s->stats->account_failed = stats->account_failed;
+
+ while ((ts = block_acct_interval_next(stats, ts))) {
+ BlockDeviceTimedStatsList *timed_stats =
+ g_malloc0(sizeof(*timed_stats));
+ BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats));
+ timed_stats->next = s->stats->timed_stats;
+ timed_stats->value = dev_stats;
+ s->stats->timed_stats = timed_stats;
+
+ TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ];
+ TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE];
+ TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH];
+
+ dev_stats->interval_length = ts->interval_length;
+
+ dev_stats->min_rd_latency_ns = timed_average_min(rd);
+ dev_stats->max_rd_latency_ns = timed_average_max(rd);
+ dev_stats->avg_rd_latency_ns = timed_average_avg(rd);
+
+ dev_stats->min_wr_latency_ns = timed_average_min(wr);
+ dev_stats->max_wr_latency_ns = timed_average_max(wr);
+ dev_stats->avg_wr_latency_ns = timed_average_avg(wr);
+
+ dev_stats->min_flush_latency_ns = timed_average_min(fl);
+ dev_stats->max_flush_latency_ns = timed_average_max(fl);
+ dev_stats->avg_flush_latency_ns = timed_average_avg(fl);
+
+ dev_stats->avg_rd_queue_depth =
+ block_acct_queue_depth(ts, BLOCK_ACCT_READ);
+ dev_stats->avg_wr_queue_depth =
+ block_acct_queue_depth(ts, BLOCK_ACCT_WRITE);
+ }
+}
+
static BlockStats *bdrv_query_stats(const BlockDriverState *bs,
bool query_backing)
{
@@ -374,69 +441,7 @@ static BlockStats *bdrv_query_stats(const BlockDriverState *bs,
s->stats = g_malloc0(sizeof(*s->stats));
if (bs->blk) {
- BlockAcctStats *stats = blk_get_stats(bs->blk);
- BlockAcctTimedStats *ts = NULL;
-
- s->stats->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ];
- s->stats->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE];
- s->stats->rd_operations = stats->nr_ops[BLOCK_ACCT_READ];
- s->stats->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE];
-
- s->stats->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ];
- s->stats->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE];
- s->stats->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH];
-
- s->stats->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ];
- s->stats->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE];
- s->stats->invalid_flush_operations =
- stats->invalid_ops[BLOCK_ACCT_FLUSH];
-
- s->stats->rd_merged = stats->merged[BLOCK_ACCT_READ];
- s->stats->wr_merged = stats->merged[BLOCK_ACCT_WRITE];
- s->stats->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH];
- 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->account_invalid = stats->account_invalid;
- s->stats->account_failed = stats->account_failed;
-
- while ((ts = block_acct_interval_next(stats, ts))) {
- BlockDeviceTimedStatsList *timed_stats =
- g_malloc0(sizeof(*timed_stats));
- BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats));
- timed_stats->next = s->stats->timed_stats;
- timed_stats->value = dev_stats;
- s->stats->timed_stats = timed_stats;
-
- TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ];
- TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE];
- TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH];
-
- dev_stats->interval_length = ts->interval_length;
-
- dev_stats->min_rd_latency_ns = timed_average_min(rd);
- dev_stats->max_rd_latency_ns = timed_average_max(rd);
- dev_stats->avg_rd_latency_ns = timed_average_avg(rd);
-
- dev_stats->min_wr_latency_ns = timed_average_min(wr);
- dev_stats->max_wr_latency_ns = timed_average_max(wr);
- dev_stats->avg_wr_latency_ns = timed_average_avg(wr);
-
- dev_stats->min_flush_latency_ns = timed_average_min(fl);
- dev_stats->max_flush_latency_ns = timed_average_max(fl);
- dev_stats->avg_flush_latency_ns = timed_average_avg(fl);
-
- dev_stats->avg_rd_queue_depth =
- block_acct_queue_depth(ts, BLOCK_ACCT_READ);
- dev_stats->avg_wr_queue_depth =
- block_acct_queue_depth(ts, BLOCK_ACCT_WRITE);
- }
+ bdrv_query_blk_stats(s, bs->blk);
}
s->stats->wr_highest_offset = bs->wr_highest_offset;