author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 16:57:14 +0300 | |
branch | RCL_3 |
changeset 23 | 26645d81f48d |
parent 0 | 08ec8eefde2f |
permissions | -rw-r--r-- |
0
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# 2007 May 17 |
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# |
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# The author disclaims copyright to this source code. In place of |
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# a legal notice, here is a blessing: |
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# |
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# May you do good and not evil. |
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# May you find forgiveness for yourself and forgive others. |
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# May you share freely, never taking more than you give. |
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# |
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#************************************************************************* |
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# This file implements regression tests for SQLite library. The |
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# focus of this script is testing that the overflow-page related |
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# enhancements added after version 3.3.17 speed things up. |
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# |
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# $Id: speed3.test,v 1.5 2007/10/09 08:29:33 danielk1977 Exp $ |
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# |
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|
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#--------------------------------------------------------------------- |
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# Test plan: |
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# |
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# If auto-vacuum is enabled for the database, the following cases |
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# should show performance improvement with respect to 3.3.17. |
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# |
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# + When deleting rows that span overflow pages. This is faster |
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# because the overflow pages no longer need to be read before |
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# they can be moved to the free list (test cases speed3-1.X). |
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# |
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# + When reading a column value stored on an overflow page that |
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# is not the first overflow page for the row. The improvement |
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# in this case is because the overflow pages between the tree |
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# page and the overflow page containing the value do not have |
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# to be read (test cases speed3-2.X). |
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# |
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set testdir [file dirname $argv0] |
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source $testdir/tester.tcl |
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|
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ifcapable !tclvar||!attach { |
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finish_test |
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return |
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} |
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speed_trial_init speed1 |
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|
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# Set a uniform random seed |
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expr srand(0) |
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set ::NROW 1000 |
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|
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# The number_name procedure below converts its argment (an integer) |
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# into a string which is the English-language name for that number. |
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# |
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# Example: |
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# |
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# puts [number_name 123] -> "one hundred twenty three" |
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# |
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set ones {zero one two three four five six seven eight nine |
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ten eleven twelve thirteen fourteen fifteen sixteen seventeen |
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eighteen nineteen} |
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set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety} |
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proc number_name {n} { |
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if {$n>=1000} { |
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set txt "[number_name [expr {$n/1000}]] thousand" |
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set n [expr {$n%1000}] |
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} else { |
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set txt {} |
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} |
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if {$n>=100} { |
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append txt " [lindex $::ones [expr {$n/100}]] hundred" |
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set n [expr {$n%100}] |
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} |
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if {$n>=20} { |
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append txt " [lindex $::tens [expr {$n/10}]]" |
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set n [expr {$n%10}] |
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} |
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if {$n>0} { |
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append txt " [lindex $::ones $n]" |
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} |
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set txt [string trim $txt] |
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if {$txt==""} {set txt zero} |
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return $txt |
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} |
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|
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proc populate_t1 {db} { |
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$db transaction { |
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for {set ii 0} {$ii < $::NROW} {incr ii} { |
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set N [number_name $ii] |
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set repeats [expr {(10000/[string length $N])+1}] |
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set text [string range [string repeat $N $repeats] 0 10000] |
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$db eval {INSERT INTO main.t1 VALUES($ii, $text, $ii)} |
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} |
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$db eval {INSERT INTO aux.t1 SELECT * FROM main.t1} |
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} |
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} |
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95 |
|
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96 |
|
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proc io_log {db} { |
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db_enter db |
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array set stats1 [btree_pager_stats [btree_from_db db]] |
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array set stats2 [btree_pager_stats [btree_from_db db 2]] |
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db_leave db |
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# puts "1: [array get stats1]" |
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103 |
# puts "2: [array get stats2]" |
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104 |
puts "Incrvacuum: Read $stats1(read), wrote $stats1(write)" |
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105 |
puts "Normal : Read $stats2(read), wrote $stats2(write)" |
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106 |
} |
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107 |
|
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108 |
proc overflow_report {db} { |
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109 |
set bt [btree_from_db db] |
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110 |
set csr [btree_cursor $bt 3 0] |
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111 |
|
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112 |
for {btree_first $csr} {![btree_eof $csr]} {btree_next $csr} { |
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113 |
puts "[btree_ovfl_info $bt $csr]" |
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114 |
} |
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115 |
|
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btree_close_cursor $csr |
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117 |
|
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118 |
} |
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119 |
|
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120 |
proc reset_db {} { |
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121 |
db close |
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122 |
sqlite3 db test.db |
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123 |
db eval { |
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124 |
PRAGMA main.cache_size = 200000; |
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125 |
PRAGMA main.auto_vacuum = 'incremental'; |
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ATTACH 'test2.db' AS 'aux'; |
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PRAGMA aux.auto_vacuum = 'none'; |
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128 |
} |
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129 |
} |
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130 |
|
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131 |
file delete -force test2.db test2.db-journal |
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132 |
reset_db |
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133 |
|
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134 |
# Set up a database in auto-vacuum mode and create a database schema. |
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135 |
# |
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136 |
do_test speed3-0.1 { |
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137 |
execsql { |
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138 |
CREATE TABLE main.t1(a INTEGER, b TEXT, c INTEGER); |
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139 |
} |
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140 |
execsql { |
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141 |
SELECT name FROM sqlite_master ORDER BY 1; |
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142 |
} |
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143 |
} {t1} |
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144 |
do_test speed3-0.2 { |
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145 |
execsql { |
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146 |
CREATE TABLE aux.t1(a INTEGER, b TEXT, c INTEGER); |
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147 |
} |
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148 |
execsql { |
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149 |
SELECT name FROM aux.sqlite_master ORDER BY 1; |
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150 |
} |
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151 |
} {t1} |
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152 |
do_test speed3-0.3 { |
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153 |
populate_t1 db |
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154 |
execsql { |
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155 |
SELECT count(*) FROM main.t1; |
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156 |
SELECT count(*) FROM aux.t1; |
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157 |
} |
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158 |
} "$::NROW $::NROW" |
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159 |
do_test speed3-0.4 { |
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160 |
execsql { |
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|
161 |
PRAGMA main.auto_vacuum; |
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|
162 |
PRAGMA aux.auto_vacuum; |
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163 |
} |
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|
164 |
} {2 0} |
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|
165 |
|
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|
166 |
# Delete all content in a table, one row at a time. |
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|
167 |
# |
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|
168 |
#io_log db |
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|
169 |
#overflow_report db |
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|
170 |
reset_db |
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Revision: 201003
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|
171 |
speed_trial speed3-1.incrvacuum $::NROW row {DELETE FROM main.t1 WHERE 1} |
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Revision: 201003
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|
172 |
speed_trial speed3-1.normal $::NROW row {DELETE FROM aux.t1 WHERE 1} |
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|
173 |
io_log db |
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|
174 |
|
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Revision: 201003
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|
175 |
# Select the "C" column (located at the far end of the overflow |
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|
176 |
# chain) from each table row. |
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177 |
# |
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|
178 |
#db eval {PRAGMA incremental_vacuum(500000)} |
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|
179 |
populate_t1 db |
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|
180 |
#overflow_report db |
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|
181 |
reset_db |
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Revision: 201003
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|
182 |
speed_trial speed3-2.incrvacuum $::NROW row {SELECT c FROM main.t1} |
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|
183 |
speed_trial speed3-2.normal $::NROW row {SELECT c FROM aux.t1} |
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|
184 |
io_log db |
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|
185 |
|
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Revision: 201003
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|
186 |
finish_test |