Added benchmark scripts to GitHub
This commit is contained in:
lukaseder
parent
423bf10a65
commit
2dcdfee7bb
68
jOOQ-examples/Benchmarks/DB2/Benchmarking DB2 (absolute).sql
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68
jOOQ-examples/Benchmarks/DB2/Benchmarking DB2 (absolute).sql
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@ -0,0 +1,68 @@
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-- This version displays actual execution times.
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-- Beware that according to DB2 licensing, it is not allowed to publish benchmark results
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BEGIN
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DECLARE CONTINUE HANDLER FOR SQLSTATE '42710' BEGIN END;
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EXECUTE IMMEDIATE 'CREATE TABLE print (text VARCHAR(500))';
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END
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BEGIN
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DECLARE v_ts TIMESTAMP;
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DECLARE v_repeat INTEGER DEFAULT 100;
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DECLARE v_i INTEGER;
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DECLARE v_j INTEGER;
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-- Repeat the whole benchmark several times to avoid warmup penalty
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SET v_i = 1;
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DELETE FROM print;
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REPEAT
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SET v_j = 1;
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SET v_ts = CURRENT_TIMESTAMP;
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REPEAT
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FOR rec AS cur CURSOR FOR
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-- Paste statement 1 here
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SELECT 1 AS a FROM sysibm.dual
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DO
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BEGIN END;
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END FOR;
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SET v_j = v_j + 1;
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UNTIL v_j = v_repeat
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END REPEAT;
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INSERT INTO print VALUES ('Run ' || v_i ||', Statement 1 : ' || (CURRENT_TIMESTAMP - v_ts));
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SET v_j = 1;
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SET v_ts = CURRENT_TIMESTAMP;
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REPEAT
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FOR rec AS cur CURSOR FOR
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-- Paste statement 2 here
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WITH t(a) AS (
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SELECT 1 AS a FROM sysibm.dual
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UNION ALL
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SELECT a + 1
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FROM t
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WHERE a < 100
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)
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SELECT a FROM t
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DO
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BEGIN END;
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END FOR;
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SET v_j = v_j + 1;
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UNTIL v_j > v_repeat
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END REPEAT;
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INSERT INTO print VALUES ('Run ' || v_i ||', Statement 2 : ' || (CURRENT_TIMESTAMP - v_ts));
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SET v_i = v_i + 1;
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UNTIL v_i > 5
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END REPEAT;
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END
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SELECT * FROM print;
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DROP TABLE print;
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73
jOOQ-examples/Benchmarks/DB2/Benchmarking DB2 (relative).sql
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73
jOOQ-examples/Benchmarks/DB2/Benchmarking DB2 (relative).sql
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@ -0,0 +1,73 @@
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-- This version displays actual execution times.
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-- According to our understanding of DB2 licensing, such benchmark results may be published
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-- as they cannot be compared to other databases and do not provide absolute time values
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BEGIN
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DECLARE CONTINUE HANDLER FOR SQLSTATE '42710' BEGIN END;
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EXECUTE IMMEDIATE 'CREATE TABLE print_relative (run INTEGER, stmt INTEGER, elapsed DECIMAL(20, 4))';
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END
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BEGIN
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DECLARE v_ts TIMESTAMP;
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DECLARE v_repeat INTEGER DEFAULT 100;
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DECLARE v_i INTEGER;
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DECLARE v_j INTEGER;
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-- Repeat the whole benchmark several times to avoid warmup penalty
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SET v_i = 1;
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DELETE FROM print_relative;
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REPEAT
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SET v_j = 1;
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SET v_ts = CURRENT_TIMESTAMP;
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REPEAT
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FOR rec AS cur CURSOR FOR
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-- Paste statement 1 here
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SELECT 1 AS a FROM sysibm.dual
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DO
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BEGIN END;
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END FOR;
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SET v_j = v_j + 1;
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UNTIL v_j = v_repeat
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END REPEAT;
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INSERT INTO print_relative VALUES (v_i, 1, (CURRENT_TIMESTAMP - v_ts));
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SET v_j = 1;
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SET v_ts = CURRENT_TIMESTAMP;
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REPEAT
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FOR rec AS cur CURSOR FOR
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-- Paste statement 2 here
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WITH t(a) AS (
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SELECT 1 AS a FROM sysibm.dual
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UNION ALL
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SELECT a + 1
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FROM t
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WHERE a < 100
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)
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SELECT a FROM t
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DO
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BEGIN END;
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END FOR;
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SET v_j = v_j + 1;
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UNTIL v_j > v_repeat
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END REPEAT;
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INSERT INTO print_relative VALUES (v_i, 2, (CURRENT_TIMESTAMP - v_ts));
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SET v_i = v_i + 1;
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UNTIL v_i > 5
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END REPEAT;
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END
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SELECT
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run,
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stmt,
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CAST(elapsed / MIN(elapsed) OVER() AS DECIMAL(20, 4)) ratio
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FROM print_relative;
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DROP TABLE print_relative;
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@ -0,0 +1,136 @@
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-- This version displays actual execution times.
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-- According to our understanding of DB2 licensing, such benchmark results may be published
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-- as they cannot be compared to other databases and do not provide absolute time values
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BEGIN
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DECLARE CONTINUE HANDLER FOR SQLSTATE '42710' BEGIN END;
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EXECUTE IMMEDIATE 'CREATE TABLE print_relative (run INTEGER, stmt INTEGER, elapsed DECIMAL(20, 4))';
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END
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BEGIN
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DECLARE v_ts TIMESTAMP;
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DECLARE v_repeat INTEGER DEFAULT 2000;
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DECLARE v_i INTEGER;
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DECLARE v_j INTEGER;
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-- Repeat the whole benchmark several times to avoid warmup penalty
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SET v_i = 1;
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DELETE FROM print_relative;
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REPEAT
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SET v_j = 1;
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SET v_ts = CURRENT_TIMESTAMP;
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REPEAT
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FOR rec AS cur CURSOR FOR
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SELECT
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first_name, last_name, count(*) c
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FROM actor
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JOIN film_actor ON actor.actor_id = film_actor.actor_id
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WHERE last_name LIKE 'A%'
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GROUP BY first_name, last_name
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ORDER BY count(*) DESC
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DO
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BEGIN END;
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END FOR;
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SET v_j = v_j + 1;
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UNTIL v_j = v_repeat
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END REPEAT;
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INSERT INTO print_relative VALUES (v_i, 1, (CURRENT_TIMESTAMP - v_ts));
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SET v_j = 1;
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SET v_ts = CURRENT_TIMESTAMP;
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REPEAT
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FOR rec AS cur CURSOR FOR
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SELECT
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first_name, last_name,
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count(*) a
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FROM (
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SELECT *
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FROM actor
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WHERE last_name LIKE 'A%'
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) a
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JOIN film_actor
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ON a.actor_id = film_actor.actor_id
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GROUP BY
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first_name, last_name
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ORDER BY count(*) DESC
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DO
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BEGIN END;
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END FOR;
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SET v_j = v_j + 1;
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UNTIL v_j = v_repeat
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END REPEAT;
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INSERT INTO print_relative VALUES (v_i, 2, (CURRENT_TIMESTAMP - v_ts));
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SET v_j = 1;
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SET v_ts = CURRENT_TIMESTAMP;
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REPEAT
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FOR rec AS cur CURSOR FOR
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SELECT * FROM (
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SELECT
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first_name, last_name, (
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SELECT count(*)
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FROM film_actor fa
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WHERE a.actor_id =
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fa.actor_id
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) AS c
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FROM actor a
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WHERE last_name LIKE 'A%'
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) a
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WHERE c > 0
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ORDER BY c DESC
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DO
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BEGIN END;
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END FOR;
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SET v_j = v_j + 1;
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UNTIL v_j = v_repeat
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END REPEAT;
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INSERT INTO print_relative VALUES (v_i, 3, (CURRENT_TIMESTAMP - v_ts));
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SET v_j = 1;
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SET v_ts = CURRENT_TIMESTAMP;
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REPEAT
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FOR rec AS cur CURSOR FOR
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SELECT
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first_name, last_name, c
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FROM actor
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JOIN (
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SELECT actor_id,count(*) c
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FROM film_actor
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GROUP BY actor_id
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) fa
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ON actor.actor_id = fa.actor_id
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WHERE last_name LIKE 'A%'
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ORDER BY c DESC
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DO
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BEGIN END;
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END FOR;
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SET v_j = v_j + 1;
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UNTIL v_j = v_repeat
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END REPEAT;
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INSERT INTO print_relative VALUES (v_i, 4, (CURRENT_TIMESTAMP - v_ts));
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SET v_i = v_i + 1;
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UNTIL v_i = 5
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END REPEAT;
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END
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SELECT
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run,
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stmt,
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CAST(elapsed / MIN(elapsed) OVER() AS DECIMAL(20, 4)) ratio
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FROM print_relative;
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DROP TABLE print_relative;
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@ -0,0 +1,72 @@
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CREATE TABLE IF NOT EXISTS print (text VARCHAR(500));
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delimiter //
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CREATE PROCEDURE benchmark ()
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BEGIN
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DECLARE done INT DEFAULT FALSE;
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DECLARE v_ts BIGINT;
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DECLARE v_repeat INT DEFAULT 10000;
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DECLARE r, c INT;
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DECLARE a INT;
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DECLARE cur1 CURSOR FOR
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SELECT 1 AS a FROM dual;
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DECLARE cur2 CURSOR FOR
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SELECT 1 AS a FROM dual UNION SELECT 2 FROM dual UNION SELECT 3 FROM dual;
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DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
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SET r = 0;
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REPEAT
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SET v_ts = ROUND(UNIX_TIMESTAMP(CURTIME(4)) * 1000);
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SET c = 0;
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REPEAT
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OPEN cur1;
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read_loop: LOOP
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FETCH cur1 INTO a;
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IF done THEN
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LEAVE read_loop;
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END IF;
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END LOOP;
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CLOSE cur1;
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SET c = c + 1;
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UNTIL c >= v_repeat END REPEAT;
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INSERT INTO print VALUES (CONCAT('Run ', r, ', Statement 1 : ', ROUND(UNIX_TIMESTAMP(CURTIME(4)) * 1000) - v_ts));
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SET v_ts = ROUND(UNIX_TIMESTAMP(CURTIME(4)) * 1000);
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SET c = 0;
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REPEAT
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OPEN cur2;
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read_loop: LOOP
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FETCH cur2 INTO a;
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IF done THEN
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LEAVE read_loop;
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END IF;
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END LOOP;
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CLOSE cur2;
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SET c = c + 1;
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UNTIL c >= v_repeat END REPEAT;
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INSERT INTO print VALUES (CONCAT('Run ', r, ', Statement 2 : ', ROUND(UNIX_TIMESTAMP(CURTIME(4)) * 1000) - v_ts));
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SET r = r + 1;
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UNTIL r >= 5 END REPEAT;
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END//
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delimiter ;
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CALL benchmark();
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SELECT * FROM print;
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DROP PROCEDURE benchmark;
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DROP TABLE print;
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@ -0,0 +1,76 @@
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CREATE TABLE IF NOT EXISTS print_relative (run INT, stmt INT, elapsed BIGINT);
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delimiter //
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CREATE PROCEDURE benchmark ()
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BEGIN
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DECLARE done INT DEFAULT FALSE;
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DECLARE v_ts BIGINT;
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DECLARE v_repeat INT DEFAULT 10000;
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DECLARE r, c INT;
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DECLARE a INT;
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DECLARE cur1 CURSOR FOR
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SELECT 1 AS a FROM dual;
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DECLARE cur2 CURSOR FOR
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SELECT 1 AS a FROM dual UNION SELECT 2 FROM dual UNION SELECT 3 FROM dual;
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DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
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SET r = 0;
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REPEAT
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SET v_ts = ROUND(UNIX_TIMESTAMP(CURTIME(4)) * 1000);
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SET c = 0;
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REPEAT
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OPEN cur1;
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read_loop: LOOP
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FETCH cur1 INTO a;
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IF done THEN
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LEAVE read_loop;
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END IF;
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END LOOP;
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CLOSE cur1;
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SET c = c + 1;
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UNTIL c >= v_repeat END REPEAT;
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INSERT INTO print_relative VALUES (r, 1, ROUND(UNIX_TIMESTAMP(CURTIME(4)) * 1000) - v_ts);
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SET v_ts = ROUND(UNIX_TIMESTAMP(CURTIME(4)) * 1000);
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SET c = 0;
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REPEAT
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OPEN cur2;
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read_loop: LOOP
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FETCH cur2 INTO a;
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IF done THEN
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LEAVE read_loop;
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END IF;
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END LOOP;
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CLOSE cur2;
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SET c = c + 1;
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UNTIL c >= v_repeat END REPEAT;
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INSERT INTO print_relative VALUES (r, 2, ROUND(UNIX_TIMESTAMP(CURTIME(4)) * 1000) - v_ts);
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SET r = r + 1;
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UNTIL r >= 5 END REPEAT;
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END//
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delimiter ;
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CALL benchmark();
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SELECT
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run,
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stmt,
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CAST(elapsed / MIN(elapsed) OVER() AS DECIMAL(20, 4)) ratio
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FROM print_relative;
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DROP PROCEDURE benchmark;
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DROP TABLE print_relative;
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@ -0,0 +1,40 @@
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-- This version displays actual execution times.
|
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-- Beware that according to Oracle licensing, it is not allowed to publish benchmark results
|
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SET SERVEROUTPUT ON
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DECLARE
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v_ts TIMESTAMP WITH TIME ZONE;
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v_repeat CONSTANT NUMBER := 10000;
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BEGIN
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-- Repeat the whole benchmark several times to avoid warmup penalty
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FOR r IN 1..5 LOOP
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v_ts := SYSTIMESTAMP;
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FOR i IN 1..v_repeat LOOP
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FOR rec IN (
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-- Paste statement 1 here
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SELECT 1 FROM dual
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) LOOP
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NULL;
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END LOOP;
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END LOOP;
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dbms_output.put_line('Run ' || r ||', Statement 1 : ' || (SYSTIMESTAMP - v_ts));
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v_ts := SYSTIMESTAMP;
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FOR i IN 1..v_repeat LOOP
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FOR rec IN (
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-- Paste statement 2 here
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SELECT 1
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FROM dual
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CONNECT BY level < 100
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) LOOP
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NULL;
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END LOOP;
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END LOOP;
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dbms_output.put_line('Run ' || r ||', Statement 2 : ' || (SYSTIMESTAMP - v_ts));
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dbms_output.put_line('');
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END LOOP;
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END;
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/
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@ -0,0 +1,60 @@
|
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-- This version displays relative execution times (fastest execution = 1)
|
||||
-- According to our understanding of Oracle licensing, such benchmark results may be published
|
||||
-- as they cannot be compared to other databases and do not provide absolute time values
|
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SET SERVEROUTPUT ON
|
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CREATE TABLE results (
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run NUMBER(2),
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stmt NUMBER(2),
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elapsed NUMBER
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);
|
||||
|
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DECLARE
|
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v_ts TIMESTAMP WITH TIME ZONE;
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v_repeat CONSTANT NUMBER := 2000;
|
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BEGIN
|
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|
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-- Repeat the whole benchmark several times to avoid warmup penalty
|
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FOR r IN 1..5 LOOP
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v_ts := SYSTIMESTAMP;
|
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|
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FOR i IN 1..v_repeat LOOP
|
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FOR rec IN (
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-- Paste statement 1 here
|
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SELECT 1 FROM dual
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) LOOP
|
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NULL;
|
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END LOOP;
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END LOOP;
|
||||
|
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INSERT INTO results VALUES (r, 1, SYSDATE + ((SYSTIMESTAMP - v_ts) * 86400) - SYSDATE);
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v_ts := SYSTIMESTAMP;
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|
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FOR i IN 1..v_repeat LOOP
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FOR rec IN (
|
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-- Paste statement 2 here
|
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SELECT 1
|
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FROM dual
|
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CONNECT BY level < 100
|
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) LOOP
|
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NULL;
|
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END LOOP;
|
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END LOOP;
|
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|
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INSERT INTO results VALUES (r, 2, SYSDATE + ((SYSTIMESTAMP - v_ts) * 86400) - SYSDATE);
|
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END LOOP;
|
||||
|
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FOR rec IN (
|
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SELECT
|
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run, stmt,
|
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CAST(elapsed / MIN(elapsed) OVER() AS NUMBER(10, 5)) ratio
|
||||
FROM results
|
||||
)
|
||||
LOOP
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dbms_output.put_line('Run ' || rec.run ||
|
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', Statement ' || rec.stmt ||
|
||||
' : ' || rec.ratio);
|
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END LOOP;
|
||||
END;
|
||||
/
|
||||
|
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DROP TABLE results;
|
||||
@ -0,0 +1,118 @@
|
||||
-- This version displays relative execution times (fastest execution = 1)
|
||||
-- According to our understanding of Oracle licensing, such benchmark results may be published
|
||||
-- as they cannot be compared to other databases and do not provide absolute time values
|
||||
SET SERVEROUTPUT ON
|
||||
CREATE TABLE results (
|
||||
run NUMBER(2),
|
||||
stmt NUMBER(2),
|
||||
elapsed NUMBER
|
||||
);
|
||||
|
||||
DECLARE
|
||||
v_ts TIMESTAMP WITH TIME ZONE;
|
||||
v_repeat CONSTANT NUMBER := 2000;
|
||||
BEGIN
|
||||
|
||||
-- Repeat the whole benchmark several times to avoid warmup penalty
|
||||
FOR r IN 1..5 LOOP
|
||||
v_ts := SYSTIMESTAMP;
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
SELECT
|
||||
first_name, last_name, count(*) c
|
||||
FROM actor
|
||||
JOIN film_actor ON actor.actor_id = film_actor.actor_id
|
||||
WHERE last_name LIKE 'A%'
|
||||
GROUP BY first_name, last_name
|
||||
ORDER BY count(*) DESC
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
INSERT INTO results VALUES (r, 1, SYSDATE + ((SYSTIMESTAMP - v_ts) * 86400) - SYSDATE);
|
||||
v_ts := SYSTIMESTAMP;
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
SELECT
|
||||
first_name, last_name,
|
||||
count(*) a
|
||||
FROM (
|
||||
SELECT *
|
||||
FROM actor
|
||||
WHERE last_name LIKE 'A%'
|
||||
) a
|
||||
JOIN film_actor
|
||||
ON a.actor_id = film_actor.actor_id
|
||||
GROUP BY
|
||||
first_name, last_name
|
||||
ORDER BY count(*) DESC
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
INSERT INTO results VALUES (r, 2, SYSDATE + ((SYSTIMESTAMP - v_ts) * 86400) - SYSDATE);
|
||||
v_ts := SYSTIMESTAMP;
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
SELECT * FROM (
|
||||
SELECT
|
||||
first_name, last_name, (
|
||||
SELECT count(*)
|
||||
FROM film_actor fa
|
||||
WHERE a.actor_id =
|
||||
fa.actor_id
|
||||
) AS c
|
||||
FROM actor a
|
||||
WHERE last_name LIKE 'A%'
|
||||
) a
|
||||
WHERE c > 0
|
||||
ORDER BY c DESC
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
INSERT INTO results VALUES (r, 3, SYSDATE + ((SYSTIMESTAMP - v_ts) * 86400) - SYSDATE);
|
||||
v_ts := SYSTIMESTAMP;
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
SELECT
|
||||
first_name, last_name, c
|
||||
FROM actor
|
||||
JOIN (
|
||||
SELECT actor_id,count(*) c
|
||||
FROM film_actor
|
||||
GROUP BY actor_id
|
||||
) fa
|
||||
ON actor.actor_id = fa.actor_id
|
||||
WHERE last_name LIKE 'A%'
|
||||
ORDER BY c DESC
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
INSERT INTO results VALUES (r, 4, SYSDATE + ((SYSTIMESTAMP - v_ts) * 86400) - SYSDATE);
|
||||
END LOOP;
|
||||
|
||||
FOR rec IN (
|
||||
SELECT
|
||||
run, stmt,
|
||||
CAST(elapsed / MIN(elapsed) OVER() AS NUMBER(10, 5)) ratio
|
||||
FROM results
|
||||
)
|
||||
LOOP
|
||||
dbms_output.put_line('Run ' || rec.run ||
|
||||
', Statement ' || rec.stmt ||
|
||||
' : ' || rec.ratio);
|
||||
END LOOP;
|
||||
END;
|
||||
/
|
||||
|
||||
DROP TABLE results;
|
||||
@ -0,0 +1,41 @@
|
||||
DO $$
|
||||
DECLARE
|
||||
v_ts TIMESTAMP;
|
||||
v_repeat CONSTANT INT := 10000;
|
||||
rec RECORD;
|
||||
BEGIN
|
||||
|
||||
-- Repeat the whole benchmark several times to avoid warmup penalty
|
||||
FOR r IN 1..5 LOOP
|
||||
v_ts := clock_timestamp();
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
-- Paste statement 1 here
|
||||
SELECT 1
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
RAISE INFO 'Run %, Statement 1: %', r, (clock_timestamp() - v_ts);
|
||||
v_ts := clock_timestamp();
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
-- Paste statement 2 here
|
||||
WITH RECURSIVE t(v) AS (
|
||||
SELECT 1
|
||||
UNION ALL
|
||||
SELECT v + 1 FROM t WHERE v < 10
|
||||
)
|
||||
SELECT * FROM t
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
RAISE INFO 'Run %, Statement 2: %', r, (clock_timestamp() - v_ts);
|
||||
RAISE INFO '';
|
||||
END LOOP;
|
||||
END$$;
|
||||
@ -0,0 +1,59 @@
|
||||
DO $$
|
||||
DECLARE
|
||||
v_ts TIMESTAMP;
|
||||
v_repeat CONSTANT INT := 10000;
|
||||
rec RECORD;
|
||||
run INT[];
|
||||
stmt INT[];
|
||||
elapsed DECIMAL[];
|
||||
min_elapsed DECIMAL;
|
||||
i INT := 1;
|
||||
BEGIN
|
||||
|
||||
-- Repeat the whole benchmark several times to avoid warmup penalty
|
||||
FOR r IN 1..5 LOOP
|
||||
v_ts := clock_timestamp();
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
-- Paste statement 1 here
|
||||
SELECT 1
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
run[i] := r;
|
||||
stmt[i] := 1;
|
||||
elapsed[i] := (EXTRACT(EPOCH FROM CAST(clock_timestamp() AS TIMESTAMP)) - EXTRACT(EPOCH FROM v_ts));
|
||||
i := i + 1;
|
||||
v_ts := clock_timestamp();
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
-- Paste statement 2 here
|
||||
WITH RECURSIVE t(v) AS (
|
||||
SELECT 1
|
||||
UNION ALL
|
||||
SELECT v + 1 FROM t WHERE v < 10
|
||||
)
|
||||
SELECT * FROM t
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
run[i] := r;
|
||||
stmt[i] := 2;
|
||||
elapsed[i] := (EXTRACT(EPOCH FROM CAST(clock_timestamp() AS TIMESTAMP)) - EXTRACT(EPOCH FROM v_ts));
|
||||
i := i + 1;
|
||||
END LOOP;
|
||||
|
||||
SELECT min(t.elapsed)
|
||||
INTO min_elapsed
|
||||
FROM unnest(elapsed) AS t(elapsed);
|
||||
|
||||
FOR i IN 1..array_length(run, 1) LOOP
|
||||
RAISE INFO 'RUN %, Statement %: %', run[i], stmt[i], CAST(elapsed[i] / min_elapsed AS DECIMAL(10, 5));
|
||||
END LOOP;
|
||||
END$$;
|
||||
@ -0,0 +1,120 @@
|
||||
DO $$
|
||||
DECLARE
|
||||
v_ts TIMESTAMP;
|
||||
v_repeat CONSTANT INT := 2000;
|
||||
rec RECORD;
|
||||
run INT[];
|
||||
stmt INT[];
|
||||
elapsed DECIMAL[];
|
||||
min_elapsed DECIMAL;
|
||||
i INT := 1;
|
||||
BEGIN
|
||||
|
||||
-- Repeat the whole benchmark several times to avoid warmup penalty
|
||||
FOR r IN 1..5 LOOP
|
||||
v_ts := clock_timestamp();
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
SELECT
|
||||
first_name, last_name, count(*) c
|
||||
FROM actor
|
||||
JOIN film_actor ON actor.actor_id = film_actor.actor_id
|
||||
WHERE last_name LIKE 'A%'
|
||||
GROUP BY first_name, last_name
|
||||
ORDER BY count(*) DESC
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
run[i] := r;
|
||||
stmt[i] := 1;
|
||||
elapsed[i] := (EXTRACT(EPOCH FROM CAST(clock_timestamp() AS TIMESTAMP)) - EXTRACT(EPOCH FROM v_ts));
|
||||
i := i + 1;
|
||||
v_ts := clock_timestamp();
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
SELECT
|
||||
first_name, last_name,
|
||||
count(*) a
|
||||
FROM (
|
||||
SELECT *
|
||||
FROM actor
|
||||
WHERE last_name LIKE 'A%'
|
||||
) a
|
||||
JOIN film_actor
|
||||
ON a.actor_id = film_actor.actor_id
|
||||
GROUP BY
|
||||
first_name, last_name
|
||||
ORDER BY count(*) DESC
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
run[i] := r;
|
||||
stmt[i] := 2;
|
||||
elapsed[i] := (EXTRACT(EPOCH FROM CAST(clock_timestamp() AS TIMESTAMP)) - EXTRACT(EPOCH FROM v_ts));
|
||||
i := i + 1;
|
||||
v_ts := clock_timestamp();
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
SELECT * FROM (
|
||||
SELECT
|
||||
first_name, last_name, (
|
||||
SELECT count(*)
|
||||
FROM film_actor fa
|
||||
WHERE a.actor_id =
|
||||
fa.actor_id
|
||||
) AS c
|
||||
FROM actor a
|
||||
WHERE last_name LIKE 'A%'
|
||||
) a
|
||||
WHERE c > 0
|
||||
ORDER BY c DESC
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
run[i] := r;
|
||||
stmt[i] := 3;
|
||||
elapsed[i] := (EXTRACT(EPOCH FROM CAST(clock_timestamp() AS TIMESTAMP)) - EXTRACT(EPOCH FROM v_ts));
|
||||
i := i + 1;
|
||||
v_ts := clock_timestamp();
|
||||
|
||||
FOR i IN 1..v_repeat LOOP
|
||||
FOR rec IN (
|
||||
SELECT
|
||||
first_name, last_name, c
|
||||
FROM actor
|
||||
JOIN (
|
||||
SELECT actor_id,count(*) c
|
||||
FROM film_actor
|
||||
GROUP BY actor_id
|
||||
) fa
|
||||
ON actor.actor_id = fa.actor_id
|
||||
WHERE last_name LIKE 'A%'
|
||||
ORDER BY c DESC
|
||||
) LOOP
|
||||
NULL;
|
||||
END LOOP;
|
||||
END LOOP;
|
||||
|
||||
run[i] := r;
|
||||
stmt[i] := 4;
|
||||
elapsed[i] := (EXTRACT(EPOCH FROM CAST(clock_timestamp() AS TIMESTAMP)) - EXTRACT(EPOCH FROM v_ts));
|
||||
i := i + 1;
|
||||
END LOOP;
|
||||
|
||||
SELECT min(t.elapsed)
|
||||
INTO min_elapsed
|
||||
FROM unnest(elapsed) AS t(elapsed);
|
||||
|
||||
FOR i IN 1..array_length(run, 1) LOOP
|
||||
RAISE INFO 'RUN %, Statement %: %', run[i], stmt[i], CAST(elapsed[i] / min_elapsed AS DECIMAL(10, 5));
|
||||
END LOOP;
|
||||
END$$;
|
||||
@ -0,0 +1,70 @@
|
||||
-- This version displays actual execution times.
|
||||
-- Beware that according to SQL Server licensing, it is not allowed to publish benchmark results
|
||||
DECLARE @ts DATETIME;
|
||||
DECLARE @repeat INT = 10000;
|
||||
DECLARE @r INT;
|
||||
DECLARE @i INT;
|
||||
DECLARE @dummy VARCHAR;
|
||||
|
||||
DECLARE @s1 CURSOR;
|
||||
DECLARE @s2 CURSOR;
|
||||
|
||||
SET @r = 0;
|
||||
WHILE @r < 5
|
||||
BEGIN
|
||||
SET @r = @r + 1
|
||||
|
||||
SET @s1 = CURSOR FOR
|
||||
-- Paste statement 1 here
|
||||
SELECT 1 x;
|
||||
|
||||
SET @s2 = CURSOR FOR
|
||||
-- Paste statement 2 here
|
||||
WITH t(v) AS (
|
||||
SELECT 1
|
||||
UNION ALL
|
||||
SELECT v + 1 FROM t WHERE v < 10
|
||||
)
|
||||
SELECT * FROM t
|
||||
|
||||
SET @ts = current_timestamp;
|
||||
SET @i = 0;
|
||||
WHILE @i < @repeat
|
||||
BEGIN
|
||||
SET @i = @i + 1
|
||||
|
||||
OPEN @s1;
|
||||
FETCH NEXT FROM @s1 INTO @dummy;
|
||||
WHILE @@FETCH_STATUS = 0
|
||||
BEGIN
|
||||
FETCH NEXT FROM @s1 INTO @dummy;
|
||||
END;
|
||||
|
||||
CLOSE @s1;
|
||||
END;
|
||||
|
||||
DEALLOCATE @s1;
|
||||
PRINT 'Run ' + @r + ', Statement 1: ' + CAST(DATEDIFF(ms, @ts, current_timestamp) AS VARCHAR) + 'ms';
|
||||
|
||||
SET @ts = current_timestamp;
|
||||
SET @i = 0;
|
||||
WHILE @i < @repeat
|
||||
BEGIN
|
||||
SET @i = @i + 1
|
||||
|
||||
OPEN @s2;
|
||||
FETCH NEXT FROM @s2 INTO @dummy;
|
||||
WHILE @@FETCH_STATUS = 0
|
||||
BEGIN
|
||||
FETCH NEXT FROM @s2 INTO @dummy;
|
||||
END;
|
||||
|
||||
CLOSE @s2;
|
||||
END;
|
||||
|
||||
DEALLOCATE @s2;
|
||||
PRINT 'Run ' + @r + ', Statement 2: ' + CAST(DATEDIFF(ms, @ts, current_timestamp) AS VARCHAR) + 'ms';
|
||||
PRINT '';
|
||||
END;
|
||||
|
||||
|
||||
@ -0,0 +1,77 @@
|
||||
-- This version displays relative execution times (fastest execution = 1)
|
||||
-- According to our understanding of SQL Server licensing, such benchmark results may be published
|
||||
-- as they cannot be compared to other databases and do not provide absolute time values
|
||||
DECLARE @ts DATETIME;
|
||||
DECLARE @repeat INT = 2000;
|
||||
DECLARE @r INT;
|
||||
DECLARE @i INT;
|
||||
DECLARE @dummy VARCHAR;
|
||||
|
||||
DECLARE @s1 CURSOR;
|
||||
DECLARE @s2 CURSOR;
|
||||
|
||||
DECLARE @results TABLE (
|
||||
run INT,
|
||||
stmt INT,
|
||||
elapsed DECIMAL
|
||||
);
|
||||
|
||||
SET @r = 0;
|
||||
WHILE @r < 5
|
||||
BEGIN
|
||||
SET @r = @r + 1
|
||||
|
||||
SET @s1 = CURSOR FOR
|
||||
-- Paste statement 1 here
|
||||
SELECT 1 x;
|
||||
|
||||
SET @s2 = CURSOR FOR
|
||||
-- Paste statement 2 here
|
||||
WITH t(v) AS (
|
||||
SELECT 1
|
||||
UNION ALL
|
||||
SELECT v + 1 FROM t WHERE v < 10
|
||||
)
|
||||
SELECT * FROM t
|
||||
|
||||
SET @ts = current_timestamp;
|
||||
SET @i = 0;
|
||||
WHILE @i < @repeat
|
||||
BEGIN
|
||||
SET @i = @i + 1
|
||||
|
||||
OPEN @s1;
|
||||
FETCH NEXT FROM @s1 INTO @dummy;
|
||||
WHILE @@FETCH_STATUS = 0
|
||||
BEGIN
|
||||
FETCH NEXT FROM @s1 INTO @dummy;
|
||||
END;
|
||||
|
||||
CLOSE @s1;
|
||||
END;
|
||||
|
||||
DEALLOCATE @s1;
|
||||
INSERT INTO @results VALUES (@r, 1, DATEDIFF(ms, @ts, current_timestamp));
|
||||
|
||||
SET @ts = current_timestamp;
|
||||
SET @i = 0;
|
||||
WHILE @i < @repeat
|
||||
BEGIN
|
||||
SET @i = @i + 1
|
||||
|
||||
OPEN @s2;
|
||||
FETCH NEXT FROM @s2 INTO @dummy;
|
||||
WHILE @@FETCH_STATUS = 0
|
||||
BEGIN
|
||||
FETCH NEXT FROM @s2 INTO @dummy;
|
||||
END;
|
||||
|
||||
CLOSE @s2;
|
||||
END;
|
||||
|
||||
DEALLOCATE @s2;
|
||||
INSERT INTO @results VALUES (@r, 2, DATEDIFF(ms, @ts, current_timestamp));
|
||||
END;
|
||||
|
||||
SELECT 'Run ' + CAST(run AS VARCHAR) + ', Statement ' + CAST(stmt AS VARCHAR) + ': ' + CAST(CAST(elapsed / MIN(elapsed) OVER() AS DECIMAL(10, 5)) AS VARCHAR)
|
||||
FROM @results;
|
||||
@ -0,0 +1,158 @@
|
||||
-- This version displays relative execution times (fastest execution = 1)
|
||||
-- According to our understanding of SQL Server licensing, such benchmark results may be published
|
||||
-- as they cannot be compared to other databases and do not provide absolute time values
|
||||
DECLARE @ts DATETIME;
|
||||
DECLARE @repeat INT = 2000;
|
||||
DECLARE @r INT;
|
||||
DECLARE @i INT;
|
||||
DECLARE @dummy1 VARCHAR;
|
||||
DECLARE @dummy2 VARCHAR;
|
||||
DECLARE @dummy3 INT;
|
||||
|
||||
DECLARE @s1 CURSOR;
|
||||
DECLARE @s2 CURSOR;
|
||||
DECLARE @s3 CURSOR;
|
||||
DECLARE @s4 CURSOR;
|
||||
|
||||
DECLARE @results TABLE (
|
||||
run INT,
|
||||
stmt INT,
|
||||
elapsed DECIMAL
|
||||
);
|
||||
|
||||
SET @r = 0;
|
||||
WHILE @r < 5
|
||||
BEGIN
|
||||
SET @r = @r + 1
|
||||
|
||||
SET @s1 = CURSOR FOR
|
||||
SELECT
|
||||
first_name, last_name, count(*) c
|
||||
FROM actor
|
||||
JOIN film_actor ON actor.actor_id = film_actor.actor_id
|
||||
WHERE last_name LIKE 'A%'
|
||||
GROUP BY first_name, last_name
|
||||
ORDER BY count(*) DESC
|
||||
|
||||
SET @s2 = CURSOR FOR
|
||||
SELECT
|
||||
first_name, last_name,
|
||||
count(*) a
|
||||
FROM (
|
||||
SELECT *
|
||||
FROM actor
|
||||
WHERE last_name LIKE 'A%'
|
||||
) a
|
||||
JOIN film_actor
|
||||
ON a.actor_id = film_actor.actor_id
|
||||
GROUP BY
|
||||
first_name, last_name
|
||||
ORDER BY count(*) DESC
|
||||
|
||||
SET @s3 = CURSOR FOR
|
||||
SELECT * FROM (
|
||||
SELECT
|
||||
first_name, last_name, (
|
||||
SELECT count(*)
|
||||
FROM film_actor fa
|
||||
WHERE a.actor_id =
|
||||
fa.actor_id
|
||||
) AS c
|
||||
FROM actor a
|
||||
WHERE last_name LIKE 'A%'
|
||||
) a
|
||||
WHERE c > 0
|
||||
ORDER BY c DESC
|
||||
|
||||
SET @s4 = CURSOR FOR
|
||||
SELECT
|
||||
first_name, last_name, c
|
||||
FROM actor
|
||||
JOIN (
|
||||
SELECT actor_id,count(*) c
|
||||
FROM film_actor
|
||||
GROUP BY actor_id
|
||||
) fa
|
||||
ON actor.actor_id = fa.actor_id
|
||||
WHERE last_name LIKE 'A%'
|
||||
ORDER BY c DESC
|
||||
|
||||
SET @ts = current_timestamp;
|
||||
SET @i = 0;
|
||||
WHILE @i < @repeat
|
||||
BEGIN
|
||||
SET @i = @i + 1
|
||||
|
||||
OPEN @s1;
|
||||
FETCH NEXT FROM @s1 INTO @dummy1, @dummy2, @dummy3;
|
||||
WHILE @@FETCH_STATUS = 0
|
||||
BEGIN
|
||||
FETCH NEXT FROM @s1 INTO @dummy1, @dummy2, @dummy3;
|
||||
END;
|
||||
|
||||
CLOSE @s1;
|
||||
END;
|
||||
|
||||
DEALLOCATE @s1;
|
||||
INSERT INTO @results VALUES (@r, 1, DATEDIFF(ms, @ts, current_timestamp));
|
||||
|
||||
SET @ts = current_timestamp;
|
||||
SET @i = 0;
|
||||
WHILE @i < @repeat
|
||||
BEGIN
|
||||
SET @i = @i + 1
|
||||
|
||||
OPEN @s2;
|
||||
FETCH NEXT FROM @s2 INTO @dummy1, @dummy2, @dummy3;
|
||||
WHILE @@FETCH_STATUS = 0
|
||||
BEGIN
|
||||
FETCH NEXT FROM @s2 INTO @dummy1, @dummy2, @dummy3;
|
||||
END;
|
||||
|
||||
CLOSE @s2;
|
||||
END;
|
||||
|
||||
DEALLOCATE @s2;
|
||||
INSERT INTO @results VALUES (@r, 2, DATEDIFF(ms, @ts, current_timestamp));
|
||||
|
||||
SET @ts = current_timestamp;
|
||||
SET @i = 0;
|
||||
WHILE @i < @repeat
|
||||
BEGIN
|
||||
SET @i = @i + 1
|
||||
|
||||
OPEN @s3;
|
||||
FETCH NEXT FROM @s3 INTO @dummy1, @dummy2, @dummy3;
|
||||
WHILE @@FETCH_STATUS = 0
|
||||
BEGIN
|
||||
FETCH NEXT FROM @s3 INTO @dummy1, @dummy2, @dummy3;
|
||||
END;
|
||||
|
||||
CLOSE @s3;
|
||||
END;
|
||||
|
||||
DEALLOCATE @s3;
|
||||
INSERT INTO @results VALUES (@r, 3, DATEDIFF(ms, @ts, current_timestamp));
|
||||
|
||||
SET @ts = current_timestamp;
|
||||
SET @i = 0;
|
||||
WHILE @i < @repeat
|
||||
BEGIN
|
||||
SET @i = @i + 1
|
||||
|
||||
OPEN @s4;
|
||||
FETCH NEXT FROM @s4 INTO @dummy1, @dummy2, @dummy3;
|
||||
WHILE @@FETCH_STATUS = 0
|
||||
BEGIN
|
||||
FETCH NEXT FROM @s4 INTO @dummy1, @dummy2, @dummy3;
|
||||
END;
|
||||
|
||||
CLOSE @s4;
|
||||
END;
|
||||
|
||||
DEALLOCATE @s4;
|
||||
INSERT INTO @results VALUES (@r, 4, DATEDIFF(ms, @ts, current_timestamp));
|
||||
END;
|
||||
|
||||
SELECT 'Run ' + CAST(run AS VARCHAR) + ', Statement ' + CAST(stmt AS VARCHAR) + ': ' + CAST(CAST(elapsed / MIN(elapsed) OVER() AS DECIMAL(10, 5)) AS VARCHAR)
|
||||
FROM @results;
|
||||
Loading…
Reference in New Issue
Block a user