perfschema 5.6.10 initial commit.

10.0 files

mysql-test/suite/perfschema/t/func_file_io.test

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+##
+## WL#4814, 4.1.4 FILE IO
+##
+## Functional testing of File IO
+##
+
+--source include/not_embedded.inc
+--source include/have_perfschema.inc
+
+UPDATE performance_schema.setup_instruments SET enabled = 'NO', timed = 'YES';
+
+UPDATE performance_schema.setup_instruments SET enabled = 'YES'
+WHERE name LIKE 'wait/io/file/%';
+
+update performance_schema.threads SET instrumented = 'YES'
+  WHERE PROCESSLIST_ID=connection_id();
+
+# reset lost counters
+flush status;
+
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+--enable_warnings
+
+#
+# TODO: Change to InnoDB when it gets instrumentation
+#
+
+CREATE TABLE t1 (id INT PRIMARY KEY, b CHAR(100) DEFAULT 'initial value')
+ENGINE=MyISAM;
+
+INSERT INTO t1 (id) VALUES (1), (2), (3), (4), (5), (6), (7), (8);
+
+TRUNCATE TABLE performance_schema.events_waits_history_long;
+TRUNCATE TABLE performance_schema.events_waits_history;
+TRUNCATE TABLE performance_schema.events_waits_current;
+
+#
+# FF1: Count for file should increase with instrumentation enabled and
+# FF2: Count for file should not increase with instrumentation disabled
+#
+
+SELECT * FROM t1 WHERE id = 1;
+
+SET @before_count = (SELECT SUM(TIMER_WAIT)
+                     FROM performance_schema.events_waits_history_long
+                     WHERE (EVENT_NAME = 'wait/io/file/myisam/dfile')
+                       AND (OBJECT_NAME LIKE '%t1.MYD'));
+
+SELECT (@before_count >= 0) as have_before_count;
+SELECT IF(@before_count > 0, 'Success', 'Failure') has_instrumentation;
+
+SELECT * FROM t1 WHERE id < 4;
+
+SET @after_count = (SELECT SUM(TIMER_WAIT)
+                    FROM performance_schema.events_waits_history_long
+                    WHERE (EVENT_NAME = 'wait/io/file/myisam/dfile')
+                      AND (OBJECT_NAME LIKE '%t1.MYD') AND (1 = 1));
+
+SELECT (@after_count >= 0) as have_after_count;
+SELECT IF((@after_count - @before_count) > 0, 'Success', 'Failure') test_ff1_timed;
+
+UPDATE performance_schema.setup_instruments SET enabled='NO';
+
+SET @before_count = (SELECT SUM(TIMER_WAIT)
+                     FROM performance_schema.events_waits_history_long
+                     WHERE (EVENT_NAME = 'wait/io/file/myisam/dfile')
+                       AND (OBJECT_NAME LIKE '%t1.MYD') AND (2 = 2));
+
+SELECT (@before_count >= 0) as have_before_count;
+SELECT * FROM t1 WHERE id < 6;
+
+SET @after_count = (SELECT SUM(TIMER_WAIT)
+                    FROM performance_schema.events_waits_history_long
+                    WHERE (EVENT_NAME = 'wait/io/file/myisam/dfile')
+                      AND (OBJECT_NAME LIKE '%t1.MYD') AND (3 = 3));
+
+SELECT (@after_count >= 0) as have_after_count;
+SELECT IF((COALESCE(@after_count, 0) - COALESCE(@before_count, 0)) = 0, 'Success', 'Failure') test_ff2_timed;
+
+#
+# Check not timed measurements
+#
+
+UPDATE performance_schema.setup_instruments SET enabled = 'YES'
+WHERE name LIKE 'wait/io/file/%';
+
+UPDATE performance_schema.setup_instruments SET timed = 'NO';
+
+TRUNCATE TABLE performance_schema.events_waits_history_long;
+TRUNCATE TABLE performance_schema.events_waits_history;
+TRUNCATE TABLE performance_schema.events_waits_current;
+
+SELECT * FROM t1 WHERE id > 4;
+
+SELECT * FROM performance_schema.events_waits_history_long
+WHERE TIMER_WAIT != NULL
+   OR TIMER_START != NULL
+   OR TIMER_END != NULL;
+
+SELECT * FROM performance_schema.events_waits_history
+WHERE TIMER_WAIT != NULL
+   OR TIMER_START != NULL
+   OR TIMER_END != NULL;
+
+SELECT * FROM performance_schema.events_waits_current
+WHERE TIMER_WAIT != NULL
+   OR TIMER_START != NULL
+   OR TIMER_END != NULL;
+
+UPDATE performance_schema.setup_instruments SET timed = 'YES';
+
+SELECT * FROM t1 WHERE id < 4;
+
+DROP TABLE t1;
+
+#
+# FF4: Use-case from Enterprise Monitor
+#
+
+--disable_result_log
+SELECT SUM(COUNT_READ) AS sum_count_read,
+       SUM(COUNT_WRITE) AS sum_count_write,
+       SUM(SUM_NUMBER_OF_BYTES_READ) AS sum_num_bytes_read,
+       SUM(SUM_NUMBER_OF_BYTES_WRITE) AS sum_num_bytes_write
+FROM performance_schema.file_summary_by_instance
+WHERE FILE_NAME LIKE CONCAT('%', @@tmpdir, '%') ORDER BY NULL;
+--enable_result_log
+
+#
+# FF5: Troubleshooting tasks
+#
+# These queries will give different results based on timing,
+# but at least they should not crash.
+#
+
+#
+# Total and average wait time for different events on system level
+#
+--disable_result_log
+SELECT EVENT_NAME, COUNT_STAR, AVG_TIMER_WAIT, SUM_TIMER_WAIT
+FROM performance_schema.events_waits_summary_global_by_event_name
+WHERE COUNT_STAR > 0
+ORDER BY SUM_TIMER_WAIT DESC
+LIMIT 10;
+--enable_result_log
+
+#
+# Total and average wait time for different users
+#
+
+--disable_result_log
+SELECT p.processlist_user, SUM(TIMER_WAIT) SUM_WAIT
+# ((TIME_TO_SEC(TIMEDIFF(NOW(), i.startup_time)) * 1000) / SUM(TIMER_WAIT)) * 100 WAIT_PERCENTAGE
+FROM performance_schema.events_waits_history_long h
+INNER JOIN performance_schema.threads p USING (THREAD_ID)
+GROUP BY p.processlist_user
+ORDER BY SUM_WAIT DESC
+LIMIT 20;
+--enable_result_log
+
+#
+# Total and average wait times for different events for a session
+#
+--disable_result_log
+SELECT h.EVENT_NAME, SUM(h.TIMER_WAIT) TOTAL_WAIT
+FROM performance_schema.events_waits_history_long h
+INNER JOIN performance_schema.threads p USING (THREAD_ID)
+WHERE p.PROCESSLIST_ID = 1
+GROUP BY h.EVENT_NAME
+HAVING TOTAL_WAIT > 0;
+--enable_result_log
+
+#
+# Which user reads and writes data
+#
+
+--disable_result_log
+SELECT p.processlist_user, h.operation, SUM(NUMBER_OF_BYTES) bytes
+FROM performance_schema.events_waits_history_long h
+INNER JOIN performance_schema.threads p USING (THREAD_ID)
+GROUP BY p.processlist_user, h.operation
+HAVING BYTES > 0
+ORDER BY p.processlist_user, h.operation;
+--enable_result_log
+
+# Clean-up.
+UPDATE performance_schema.setup_instruments SET enabled = 'YES', timed = 'YES';
+
+# In case of failure, will indicate the root cause
+show status like "performance_schema%";
+