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| 1 # 2006 November 23 |
| 2 # |
| 3 # The author disclaims copyright to this source code. In place of |
| 4 # a legal notice, here is a blessing: |
| 5 # |
| 6 # May you do good and not evil. |
| 7 # May you find forgiveness for yourself and forgive others. |
| 8 # May you share freely, never taking more than you give. |
| 9 # |
| 10 #************************************************************************* |
| 11 # This file implements regression tests for SQLite library. The |
| 12 # focus of this script is measuring executing speed. |
| 13 # |
| 14 # $Id: speed1.test,v 1.11 2009/04/09 01:23:49 drh Exp $ |
| 15 # |
| 16 |
| 17 sqlite3_shutdown |
| 18 #sqlite3_config_scratch 29000 1 |
| 19 set old_lookaside [sqlite3_config_lookaside 1000 300] |
| 20 #sqlite3_config_pagecache 1024 10000 |
| 21 set testdir [file dirname $argv0] |
| 22 source $testdir/tester.tcl |
| 23 speed_trial_init speed1 |
| 24 |
| 25 # Set a uniform random seed |
| 26 expr srand(0) |
| 27 |
| 28 set sqlout [open speed1.txt w] |
| 29 proc tracesql {sql} { |
| 30 puts $::sqlout $sql\; |
| 31 } |
| 32 #db trace tracesql |
| 33 |
| 34 # The number_name procedure below converts its argment (an integer) |
| 35 # into a string which is the English-language name for that number. |
| 36 # |
| 37 # Example: |
| 38 # |
| 39 # puts [number_name 123] -> "one hundred twenty three" |
| 40 # |
| 41 set ones {zero one two three four five six seven eight nine |
| 42 ten eleven twelve thirteen fourteen fifteen sixteen seventeen |
| 43 eighteen nineteen} |
| 44 set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety} |
| 45 proc number_name {n} { |
| 46 if {$n>=1000} { |
| 47 set txt "[number_name [expr {$n/1000}]] thousand" |
| 48 set n [expr {$n%1000}] |
| 49 } else { |
| 50 set txt {} |
| 51 } |
| 52 if {$n>=100} { |
| 53 append txt " [lindex $::ones [expr {$n/100}]] hundred" |
| 54 set n [expr {$n%100}] |
| 55 } |
| 56 if {$n>=20} { |
| 57 append txt " [lindex $::tens [expr {$n/10}]]" |
| 58 set n [expr {$n%10}] |
| 59 } |
| 60 if {$n>0} { |
| 61 append txt " [lindex $::ones $n]" |
| 62 } |
| 63 set txt [string trim $txt] |
| 64 if {$txt==""} {set txt zero} |
| 65 return $txt |
| 66 } |
| 67 |
| 68 # Create a database schema. |
| 69 # |
| 70 do_test speed1-1.0 { |
| 71 execsql { |
| 72 PRAGMA page_size=1024; |
| 73 PRAGMA cache_size=8192; |
| 74 PRAGMA locking_mode=EXCLUSIVE; |
| 75 CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT); |
| 76 CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT); |
| 77 CREATE INDEX i2a ON t2(a); |
| 78 CREATE INDEX i2b ON t2(b); |
| 79 } |
| 80 execsql { |
| 81 SELECT name FROM sqlite_master ORDER BY 1; |
| 82 } |
| 83 } {i2a i2b t1 t2} |
| 84 |
| 85 |
| 86 # 50000 INSERTs on an unindexed table |
| 87 # |
| 88 set sql {} |
| 89 for {set i 1} {$i<=50000} {incr i} { |
| 90 set r [expr {int(rand()*500000)}] |
| 91 append sql "INSERT INTO t1 VALUES($i,$r,'[number_name $r]');\n" |
| 92 } |
| 93 db eval BEGIN |
| 94 speed_trial speed1-insert1 50000 row $sql |
| 95 db eval COMMIT |
| 96 |
| 97 # 50000 INSERTs on an indexed table |
| 98 # |
| 99 set sql {} |
| 100 for {set i 1} {$i<=50000} {incr i} { |
| 101 set r [expr {int(rand()*500000)}] |
| 102 append sql "INSERT INTO t2 VALUES($i,$r,'[number_name $r]');\n" |
| 103 } |
| 104 db eval BEGIN |
| 105 speed_trial speed1-insert2 50000 row $sql |
| 106 db eval COMMIT |
| 107 |
| 108 |
| 109 |
| 110 # 50 SELECTs on an integer comparison. There is no index so |
| 111 # a full table scan is required. |
| 112 # |
| 113 set sql {} |
| 114 for {set i 0} {$i<50} {incr i} { |
| 115 set lwr [expr {$i*100}] |
| 116 set upr [expr {($i+10)*100}] |
| 117 append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;" |
| 118 } |
| 119 db eval BEGIN |
| 120 speed_trial speed1-select1 [expr {50*50000}] row $sql |
| 121 db eval COMMIT |
| 122 |
| 123 # 50 SELECTs on an LIKE comparison. There is no index so a full |
| 124 # table scan is required. |
| 125 # |
| 126 set sql {} |
| 127 for {set i 0} {$i<50} {incr i} { |
| 128 append sql \ |
| 129 "SELECT count(*), avg(b) FROM t1 WHERE c LIKE '%[number_name $i]%';" |
| 130 } |
| 131 db eval BEGIN |
| 132 speed_trial speed1-select2 [expr {50*50000}] row $sql |
| 133 db eval COMMIT |
| 134 |
| 135 # Create indices |
| 136 # |
| 137 db eval BEGIN |
| 138 speed_trial speed1-createidx 150000 row { |
| 139 CREATE INDEX i1a ON t1(a); |
| 140 CREATE INDEX i1b ON t1(b); |
| 141 CREATE INDEX i1c ON t1(c); |
| 142 } |
| 143 db eval COMMIT |
| 144 |
| 145 # 5000 SELECTs on an integer comparison where the integer is |
| 146 # indexed. |
| 147 # |
| 148 set sql {} |
| 149 for {set i 0} {$i<5000} {incr i} { |
| 150 set lwr [expr {$i*100}] |
| 151 set upr [expr {($i+10)*100}] |
| 152 append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;" |
| 153 } |
| 154 db eval BEGIN |
| 155 speed_trial speed1-select3 5000 stmt $sql |
| 156 db eval COMMIT |
| 157 |
| 158 # 100000 random SELECTs against rowid. |
| 159 # |
| 160 set sql {} |
| 161 for {set i 1} {$i<=100000} {incr i} { |
| 162 set id [expr {int(rand()*50000)+1}] |
| 163 append sql "SELECT c FROM t1 WHERE rowid=$id;" |
| 164 } |
| 165 db eval BEGIN |
| 166 speed_trial speed1-select4 100000 row $sql |
| 167 db eval COMMIT |
| 168 |
| 169 # 100000 random SELECTs against a unique indexed column. |
| 170 # |
| 171 set sql {} |
| 172 for {set i 1} {$i<=100000} {incr i} { |
| 173 set id [expr {int(rand()*50000)+1}] |
| 174 append sql "SELECT c FROM t1 WHERE a=$id;" |
| 175 } |
| 176 db eval BEGIN |
| 177 speed_trial speed1-select5 100000 row $sql |
| 178 db eval COMMIT |
| 179 |
| 180 # 50000 random SELECTs against an indexed column text column |
| 181 # |
| 182 set sql {} |
| 183 db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000} { |
| 184 append sql "SELECT c FROM t1 WHERE c='$c';" |
| 185 } |
| 186 db eval BEGIN |
| 187 speed_trial speed1-select6 50000 row $sql |
| 188 db eval COMMIT |
| 189 |
| 190 |
| 191 # Vacuum |
| 192 speed_trial speed1-vacuum 100000 row VACUUM |
| 193 |
| 194 # 5000 updates of ranges where the field being compared is indexed. |
| 195 # |
| 196 set sql {} |
| 197 for {set i 0} {$i<5000} {incr i} { |
| 198 set lwr [expr {$i*2}] |
| 199 set upr [expr {($i+1)*2}] |
| 200 append sql "UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr;" |
| 201 } |
| 202 db eval BEGIN |
| 203 speed_trial speed1-update1 5000 stmt $sql |
| 204 db eval COMMIT |
| 205 |
| 206 # 50000 single-row updates. An index is used to find the row quickly. |
| 207 # |
| 208 set sql {} |
| 209 for {set i 0} {$i<50000} {incr i} { |
| 210 set r [expr {int(rand()*500000)}] |
| 211 append sql "UPDATE t1 SET b=$r WHERE a=$i;" |
| 212 } |
| 213 db eval BEGIN |
| 214 speed_trial speed1-update2 50000 row $sql |
| 215 db eval COMMIT |
| 216 |
| 217 # 1 big text update that touches every row in the table. |
| 218 # |
| 219 speed_trial speed1-update3 50000 row { |
| 220 UPDATE t1 SET c=a; |
| 221 } |
| 222 |
| 223 # Many individual text updates. Each row in the table is |
| 224 # touched through an index. |
| 225 # |
| 226 set sql {} |
| 227 for {set i 1} {$i<=50000} {incr i} { |
| 228 set r [expr {int(rand()*500000)}] |
| 229 append sql "UPDATE t1 SET c='[number_name $r]' WHERE a=$i;" |
| 230 } |
| 231 db eval BEGIN |
| 232 speed_trial speed1-update4 50000 row $sql |
| 233 db eval COMMIT |
| 234 |
| 235 # Delete all content in a table. |
| 236 # |
| 237 speed_trial speed1-delete1 50000 row {DELETE FROM t1} |
| 238 |
| 239 # Copy one table into another |
| 240 # |
| 241 speed_trial speed1-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2} |
| 242 |
| 243 # Delete all content in a table, one row at a time. |
| 244 # |
| 245 speed_trial speed1-delete2 50000 row {DELETE FROM t1 WHERE 1} |
| 246 |
| 247 # Refill the table yet again |
| 248 # |
| 249 speed_trial speed1-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2} |
| 250 |
| 251 # Drop the table and recreate it without its indices. |
| 252 # |
| 253 db eval BEGIN |
| 254 speed_trial speed1-drop1 50000 row { |
| 255 DROP TABLE t1; |
| 256 CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT); |
| 257 } |
| 258 db eval COMMIT |
| 259 |
| 260 # Refill the table yet again. This copy should be faster because |
| 261 # there are no indices to deal with. |
| 262 # |
| 263 speed_trial speed1-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2} |
| 264 |
| 265 # Select 20000 rows from the table at random. |
| 266 # |
| 267 speed_trial speed1-random1 50000 row { |
| 268 SELECT rowid FROM t1 ORDER BY random() LIMIT 20000 |
| 269 } |
| 270 |
| 271 # Delete 20000 random rows from the table. |
| 272 # |
| 273 speed_trial speed1-random-del1 20000 row { |
| 274 DELETE FROM t1 WHERE rowid IN |
| 275 (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000) |
| 276 } |
| 277 do_test speed1-1.1 { |
| 278 db one {SELECT count(*) FROM t1} |
| 279 } 30000 |
| 280 |
| 281 |
| 282 # Delete 20000 more rows at random from the table. |
| 283 # |
| 284 speed_trial speed1-random-del2 20000 row { |
| 285 DELETE FROM t1 WHERE rowid IN |
| 286 (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000) |
| 287 } |
| 288 do_test speed1-1.2 { |
| 289 db one {SELECT count(*) FROM t1} |
| 290 } 10000 |
| 291 speed_trial_summary speed1 |
| 292 |
| 293 db close |
| 294 sqlite3_shutdown |
| 295 eval sqlite3_config_lookaside $old_lookaside |
| 296 sqlite3_initialize |
| 297 autoinstall_test_functions |
| 298 finish_test |
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