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| author | Sergei Petrunia <psergey@askmonty.org> | 2019-11-09 21:03:23 +0300 |
|---|---|---|
| committer | Sergei Petrunia <psergey@askmonty.org> | 2019-11-12 14:40:00 +0300 |
| commit | 68ed3a81f2113ecdcd5fce0f0cab636d57ff77da (patch) | |
| tree | 6a1ec5f927a864018475f908c005b314b1feaacf /mysql-test/main/explain_json.result | |
| parent | 0117d0e65ac8051bc9f6d14764a2ab05e69bd895 (diff) | |
| download | mariadb-git-68ed3a81f2113ecdcd5fce0f0cab636d57ff77da.tar.gz | |
MDEV-20854: ANALYZE for statements: not clear where the time is spent
Count the "gap" time between table accesses and display it as
r_other_time_ms in the "table" element.
* The advantage of this approach is that it doesn't add any new
my_timer_cycles() calls.
* The disadvantage is that the definition of what is done during
"other time" is not that clear: it includes checking the WHERE
(for this table), constructing index lookup tuple (for the next table)
writing to GROUP BY temporary table (as we dont account for that time
separately [yet], etc)
Diffstat (limited to 'mysql-test/main/explain_json.result')
| -rw-r--r-- | mysql-test/main/explain_json.result | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/mysql-test/main/explain_json.result b/mysql-test/main/explain_json.result index b918e7614af..a48cfcf213b 100644 --- a/mysql-test/main/explain_json.result +++ b/mysql-test/main/explain_json.result @@ -977,7 +977,8 @@ ANALYZE "r_loops": 1, "rows": 101, "r_rows": 100, - "r_total_time_ms": "REPLACED", + "r_table_time_ms": "REPLACED", + "r_other_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100, "using_index_for_group_by": true @@ -1292,7 +1293,8 @@ ANALYZE "r_loops": 1, "rows": 2, "r_rows": 2, - "r_total_time_ms": "REPLACED", + "r_table_time_ms": "REPLACED", + "r_other_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100 } @@ -1346,7 +1348,8 @@ ANALYZE "r_loops": 1, "rows": 2, "r_rows": 2, - "r_total_time_ms": "REPLACED", + "r_table_time_ms": "REPLACED", + "r_other_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100 }, @@ -1361,7 +1364,8 @@ ANALYZE "r_loops": 2, "rows": 1, "r_rows": 1, - "r_total_time_ms": "REPLACED", + "r_table_time_ms": "REPLACED", + "r_other_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100, "attached_condition": "trigcond(t2.pk is null) and trigcond(trigcond(t1.a is not null))", @@ -1421,7 +1425,8 @@ ANALYZE "r_loops": 1, "rows": 2, "r_rows": 2, - "r_total_time_ms": "REPLACED", + "r_table_time_ms": "REPLACED", + "r_other_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100, "attached_condition": "t1.a is not null" @@ -1437,7 +1442,8 @@ ANALYZE "r_loops": 2, "rows": 1, "r_rows": 1, - "r_total_time_ms": "REPLACED", + "r_table_time_ms": "REPLACED", + "r_other_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100, "using_index": true, @@ -1512,7 +1518,8 @@ ANALYZE "r_loops": 1, "rows": 10, "r_rows": 10, - "r_total_time_ms": "REPLACED", + "r_table_time_ms": "REPLACED", + "r_other_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100, "attached_condition": "t3.a is not null" @@ -1529,7 +1536,8 @@ ANALYZE "r_loops": 1, "rows": 1, "r_rows": 10, - "r_total_time_ms": "REPLACED", + "r_table_time_ms": "REPLACED", + "r_other_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100, "index_condition_bka": "t4.b + 1 <= t3.b + 1" |