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This commit is contained in:
Georgi Kodinov
2009-01-31 14:18:03 +02:00
parent 2b3a53a352 690dc721b8
commit 4b35af07f4
2 changed files with 107 additions and 40 deletions
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72
mysql-test/suite/sys_vars/r/innodb_max_dirty_pages_pct_func.result
View File

@@ -1,24 +1,88 @@
SET @start_value= @@global.innodb_max_dirty_pages_pct;
SET @innodb_max_dirty_pages_pct = @@global.innodb_max_dirty_pages_pct;
'#--------------------FN_DYNVARS_044_02-------------------------#'
SET @@global.innodb_max_dirty_pages_pct = 80;
'connect (con1,localhost,root,,,,)'
'connection con1'
SELECT @@global.innodb_max_dirty_pages_pct;
@@global.innodb_max_dirty_pages_pct
80
SET @@global.innodb_max_dirty_pages_pct = 70;
'connect (con2,localhost,root,,,,)'
'connection con2'
SELECT @@global.innodb_max_dirty_pages_pct;
@@global.innodb_max_dirty_pages_pct
70
'#--------------------FN_DYNVARS_044_02-------------------------#'
'connection default'
'disconnect con2'
'disconnect con1'
SET @@global.innodb_max_dirty_pages_pct = @innodb_max_dirty_pages_pct;
'#--------------------FN_DYNVARS_044_02-------------------------#'
DROP PROCEDURE IF EXISTS add_records;
DROP PROCEDURE IF EXISTS add_until;
DROP PROCEDURE IF EXISTS check_pct;
DROP FUNCTION IF EXISTS dirty_pct;
DROP TABLE IF EXISTS t1;
CREATE PROCEDURE add_records(IN num INT)
BEGIN
START TRANSACTION;
WHILE (num > 0) DO
INSERT INTO t1(b) VALUES('MYSQL');
SET num = num - 1;
END WHILE;
COMMIT;
END//
CREATE FUNCTION dirty_pct() RETURNS DECIMAL(20,17)
BEGIN
DECLARE res DECIMAL(20,17);
DECLARE a1, b1 VARCHAR(256);
DECLARE a2, b2 VARCHAR(256);
DECLARE dirty CURSOR FOR SELECT * FROM information_schema.global_status
WHERE variable_name LIKE 'Innodb_buffer_pool_pages_dirty';
DECLARE total CURSOR FOR SELECT * FROM information_schema.global_status
WHERE variable_name LIKE 'Innodb_buffer_pool_pages_total';
OPEN dirty;
OPEN total;
FETCH dirty INTO a1, b1;
FETCH total INTO a2, b2;
SET res = (CONVERT(b1,DECIMAL) * 100) / CONVERT(b2,DECIMAL);
CLOSE dirty;
CLOSE total;
RETURN res;
END//
CREATE PROCEDURE add_until(IN num DECIMAL)
BEGIN
DECLARE pct,last DECIMAL(20,17);
SET pct = dirty_pct();
SET last = 0;
WHILE (pct < num AND pct < 100) DO
CALL add_records(500);
SET pct = dirty_pct();
IF (pct < last) THEN
SET pct = num + 1;
ELSE
SET last = pct;
END IF;
END WHILE;
END//
CREATE PROCEDURE check_pct(IN num DECIMAL)
BEGIN
IF (dirty_pct() < num) THEN
SELECT 'BELOW_MAX' AS PCT_VALUE;
ELSE
SELECT 'ABOVE_MAX' AS PCT_VALUE;
END IF;
END//
CREATE TABLE t1(
a INT AUTO_INCREMENT PRIMARY KEY,
b CHAR(200)
) ENGINE = INNODB;
'---Check when innodb_max_dirty_pages_pct is 10---'
SET @@global.innodb_max_dirty_pages_pct = 10;
FLUSH STATUS;
CALL add_until(10);
FLUSH TABLES;
CALL add_records(500);
'We expect dirty pages pct to be BELOW_MAX'
'We expect dirty pages pct to be BELOW_MAX after some time depending on performance'
CALL check_pct(10);
PCT_VALUE
BELOW_MAX
@@ -27,4 +91,4 @@ DROP PROCEDURE add_until;
DROP PROCEDURE check_pct;
DROP FUNCTION dirty_pct;
DROP TABLE t1;
SET @@global.innodb_max_dirty_pages_pct= @start_value;
SET @@global.innodb_max_dirty_pages_pct = @innodb_max_dirty_pages_pct;

75
mysql-test/suite/sys_vars/t/innodb_max_dirty_pages_pct_func.test
View File

@@ -10,9 +10,11 @@
# #
# Creation Date: 2008-03-08 #
# Author: Rizwan #
# Modified: HHunger 2009-01-29 Fix for bug#39382, replaced sleep by wait cond.#
# added comments, beautifications. #
# #
# Description: #
# Test cases of Dynamic System Variable innodb_max_dirty_pages_pct that #
# Test Cases of Dynamic System Variable innodb_max_dirty_pages_pct that #
# checks the behavior of this variable #
# #
# Reference: #
@@ -22,7 +24,8 @@
--source include/have_innodb.inc
SET @start_value= @@global.innodb_max_dirty_pages_pct;
# safe initial value
SET @innodb_max_dirty_pages_pct = @@global.innodb_max_dirty_pages_pct;
--echo '#--------------------FN_DYNVARS_044_02-------------------------#'
############################################################################
@@ -32,23 +35,29 @@ SET @start_value= @@global.innodb_max_dirty_pages_pct;
SET @@global.innodb_max_dirty_pages_pct = 80;
--echo 'connect (con1,localhost,root,,,,)'
connect (con1,localhost,root,,,,);
--echo 'connection con1'
connection con1;
SELECT @@global.innodb_max_dirty_pages_pct;
SET @@global.innodb_max_dirty_pages_pct = 70;
--echo 'connect (con2,localhost,root,,,,)'
connect (con2,localhost,root,,,,);
--echo 'connection con2'
connection con2;
SELECT @@global.innodb_max_dirty_pages_pct;
--echo 'connection default'
connection default;
--echo 'disconnect con2'
disconnect con2;
--echo 'disconnect con1'
disconnect con1;
# restore initial value
SET @@global.innodb_max_dirty_pages_pct = @innodb_max_dirty_pages_pct;
--echo '#--------------------FN_DYNVARS_044_02-------------------------#'
###################################################################
# Begin the functionality Testing of innodb_max_dirty_pages_pct #
###################################################################
--echo 'connection default'
connection default;
--disable_query_log
--disable_warnings
DROP PROCEDURE IF EXISTS add_records;
@@ -58,18 +67,13 @@ DROP FUNCTION IF EXISTS dirty_pct;
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1(
a INT AUTO_INCREMENT PRIMARY KEY,
b CHAR(200)
)ENGINE=INNODB;
DELIMITER //;
CREATE PROCEDURE add_records(IN NUM INT)
CREATE PROCEDURE add_records(IN num INT)
BEGIN
START TRANSACTION;
WHILE (NUM>0) DO
WHILE (num > 0) DO
INSERT INTO t1(b) VALUES('MYSQL');
SET NUM = NUM - 1;
SET num = num - 1;
END WHILE;
COMMIT;
END//
@@ -77,15 +81,11 @@ END//
CREATE FUNCTION dirty_pct() RETURNS DECIMAL(20,17)
BEGIN
DECLARE res DECIMAL(20,17);
DECLARE a1,b1 VARCHAR(256);
DECLARE a2,b2 VARCHAR(256);
DECLARE a1, b1 VARCHAR(256);
DECLARE a2, b2 VARCHAR(256);
DECLARE dirty CURSOR FOR SELECT * FROM information_schema.global_status
WHERE variable_name LIKE 'Innodb_buffer_pool_pages_dirty'
UNION SELECT * FROM information_schema.session_status
WHERE variable_name LIKE 'Innodb_buffer_pool_pages_dirty';
DECLARE total CURSOR FOR SELECT * FROM information_schema.global_status
WHERE variable_name LIKE 'Innodb_buffer_pool_pages_total'
UNION SELECT * FROM information_schema.session_status
WHERE variable_name LIKE 'Innodb_buffer_pool_pages_total';
OPEN dirty;
@@ -94,33 +94,32 @@ BEGIN
FETCH dirty INTO a1, b1;
FETCH total INTO a2, b2;
SET res = ( CONVERT(b1,DECIMAL)*100)/CONVERT(b2,DECIMAL);
SET res = (CONVERT(b1,DECIMAL) * 100) / CONVERT(b2,DECIMAL);
CLOSE dirty;
CLOSE total;
RETURN res;
END//
CREATE PROCEDURE add_until(IN NUM DECIMAL)
CREATE PROCEDURE add_until(IN num DECIMAL)
BEGIN
DECLARE pct,last DECIMAL(20,17);
SET pct = dirty_pct();
SET last = 0;
WHILE (pct>NUM and pct<100) DO
WHILE (pct < num AND pct < 100) DO
CALL add_records(500);
SET pct = dirty_pct();
IF (pct<last) THEN
SET pct = NUM+1;
IF (pct < last) THEN
SET pct = num + 1;
ELSE
SET last = pct;
END IF;
END WHILE;
END//
CREATE PROCEDURE check_pct(IN NUM DECIMAL)
CREATE PROCEDURE check_pct(IN num DECIMAL)
BEGIN
IF (dirty_pct() < NUM) THEN
IF (dirty_pct() < num) THEN
SELECT 'BELOW_MAX' AS PCT_VALUE;
ELSE
SELECT 'ABOVE_MAX' AS PCT_VALUE;
@@ -129,7 +128,10 @@ END//
DELIMITER ;//
--enable_query_log
CREATE TABLE t1(
a INT AUTO_INCREMENT PRIMARY KEY,
b CHAR(200)
) ENGINE = INNODB;
#==========================================================
--echo '---Check when innodb_max_dirty_pages_pct is 10---'
@@ -139,28 +141,29 @@ SET @@global.innodb_max_dirty_pages_pct = 10;
FLUSH STATUS;
# Add rows until dirty pages pct is less than this value
# add rows until dirty pages pct is about @@global.innodb_max_dirty_pages_pc
CALL add_until(10);
# Give the server some time to flush dirty pages
FLUSH TABLES;
# Add more pages to be over @@global.innodb_max_dirty_pages_pc
CALL add_records(500);
# Execute dirty_pct (wait) until dirty pages < 10%
# Use polling to execute dirty_pct ina loop
let $wait_condition= SELECT dirty_pct() < 10;
# Give server time to write pages to disk (depends on performance of the system)
let $wait_condition= SELECT (dirty_pct() <= @@global.innodb_max_dirty_pages_pct);
--source include/wait_condition.inc
--echo 'We expect dirty pages pct to be BELOW_MAX'
--echo 'We expect dirty pages pct to be BELOW_MAX after some time depending on performance'
CALL check_pct(10);
DROP PROCEDURE add_records;
DROP PROCEDURE add_until;
DROP PROCEDURE check_pct;
DROP FUNCTION dirty_pct;
DROP TABLE t1;
SET @@global.innodb_max_dirty_pages_pct= @start_value;
# restore initial value
SET @@global.innodb_max_dirty_pages_pct = @innodb_max_dirty_pages_pct;
##################################################################
# End of functionality Testing for innodb_max_dirty_pages_pct #