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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: speed2.test,v 1.7 2007/04/16 15:02:20 drh Exp $ | |
| 15 # | |
| 16 | |
| 17 set testdir [file dirname $argv0] | |
| 18 source $testdir/tester.tcl | |
| 19 speed_trial_init speed2 | |
| 20 | |
| 21 # Set a uniform random seed | |
| 22 expr srand(0) | |
| 23 | |
| 24 set sqlout [open speed2.txt w] | |
| 25 proc tracesql {sql} { | |
| 26 puts $::sqlout $sql\; | |
| 27 } | |
| 28 #db trace tracesql | |
| 29 | |
| 30 # The number_name procedure below converts its argment (an integer) | |
| 31 # into a string which is the English-language name for that number. | |
| 32 # | |
| 33 # Example: | |
| 34 # | |
| 35 # puts [number_name 123] -> "one hundred twenty three" | |
| 36 # | |
| 37 set ones {zero one two three four five six seven eight nine | |
| 38 ten eleven twelve thirteen fourteen fifteen sixteen seventeen | |
| 39 eighteen nineteen} | |
| 40 set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety} | |
| 41 proc number_name {n} { | |
| 42 if {$n>=1000} { | |
| 43 set txt "[number_name [expr {$n/1000}]] thousand" | |
| 44 set n [expr {$n%1000}] | |
| 45 } else { | |
| 46 set txt {} | |
| 47 } | |
| 48 if {$n>=100} { | |
| 49 append txt " [lindex $::ones [expr {$n/100}]] hundred" | |
| 50 set n [expr {$n%100}] | |
| 51 } | |
| 52 if {$n>=20} { | |
| 53 append txt " [lindex $::tens [expr {$n/10}]]" | |
| 54 set n [expr {$n%10}] | |
| 55 } | |
| 56 if {$n>0} { | |
| 57 append txt " [lindex $::ones $n]" | |
| 58 } | |
| 59 set txt [string trim $txt] | |
| 60 if {$txt==""} {set txt zero} | |
| 61 return $txt | |
| 62 } | |
| 63 | |
| 64 # Create a database schema. | |
| 65 # | |
| 66 do_test speed2-1.0 { | |
| 67 execsql { | |
| 68 PRAGMA page_size=1024; | |
| 69 PRAGMA cache_size=8192; | |
| 70 PRAGMA locking_mode=EXCLUSIVE; | |
| 71 CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT); | |
| 72 CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT); | |
| 73 CREATE INDEX i2a ON t2(a); | |
| 74 CREATE INDEX i2b ON t2(b); | |
| 75 } | |
| 76 execsql { | |
| 77 SELECT name FROM sqlite_master ORDER BY 1; | |
| 78 } | |
| 79 } {i2a i2b t1 t2} | |
| 80 | |
| 81 | |
| 82 # 50000 INSERTs on an unindexed table | |
| 83 # | |
| 84 set sql {} | |
| 85 for {set i 1} {$i<=50000} {incr i} { | |
| 86 set r [expr {int(rand()*500000)}] | |
| 87 append sql "INSERT INTO t1 VALUES($i,$r,'[number_name $r]');\n" | |
| 88 } | |
| 89 db eval BEGIN | |
| 90 speed_trial speed2-insert1 50000 row $sql | |
| 91 db eval COMMIT | |
| 92 | |
| 93 # 50000 INSERTs on an indexed table | |
| 94 # | |
| 95 set sql {} | |
| 96 for {set i 1} {$i<=50000} {incr i} { | |
| 97 set r [expr {int(rand()*500000)}] | |
| 98 append sql "INSERT INTO t2 VALUES($i,$r,'[number_name $r]');\n" | |
| 99 } | |
| 100 db eval BEGIN | |
| 101 speed_trial speed2-insert2 50000 row $sql | |
| 102 db eval COMMIT | |
| 103 | |
| 104 | |
| 105 | |
| 106 # 50 SELECTs on an integer comparison. There is no index so | |
| 107 # a full table scan is required. | |
| 108 # | |
| 109 set sql {} | |
| 110 for {set i 0} {$i<50} {incr i} { | |
| 111 set lwr [expr {$i*100}] | |
| 112 set upr [expr {($i+10)*100}] | |
| 113 append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;" | |
| 114 } | |
| 115 speed_trial speed2-select1a [expr {50*50000}] row $sql | |
| 116 | |
| 117 # 50 SELECTs on an LIKE comparison. There is no index so a full | |
| 118 # table scan is required. | |
| 119 # | |
| 120 set sql {} | |
| 121 for {set i 0} {$i<50} {incr i} { | |
| 122 append sql \ | |
| 123 "SELECT count(*), avg(b) FROM t1 WHERE c LIKE '%[number_name $i]%';" | |
| 124 } | |
| 125 speed_trial speed2-select2a [expr {50*50000}] row $sql | |
| 126 | |
| 127 # Vacuum | |
| 128 speed_trial speed2-vacuum1 100000 row VACUUM | |
| 129 | |
| 130 # 50 SELECTs on an integer comparison. There is no index so | |
| 131 # a full table scan is required. | |
| 132 # | |
| 133 set sql {} | |
| 134 for {set i 0} {$i<50} {incr i} { | |
| 135 set lwr [expr {$i*100}] | |
| 136 set upr [expr {($i+10)*100}] | |
| 137 append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;" | |
| 138 } | |
| 139 speed_trial speed2-select1b [expr {50*50000}] row $sql | |
| 140 | |
| 141 # 50 SELECTs on an LIKE comparison. There is no index so a full | |
| 142 # table scan is required. | |
| 143 # | |
| 144 set sql {} | |
| 145 for {set i 0} {$i<50} {incr i} { | |
| 146 append sql \ | |
| 147 "SELECT count(*), avg(b) FROM t1 WHERE c LIKE '%[number_name $i]%';" | |
| 148 } | |
| 149 speed_trial speed2-select2b [expr {50*50000}] row $sql | |
| 150 | |
| 151 # Create indices | |
| 152 # | |
| 153 db eval BEGIN | |
| 154 speed_trial speed2-createidx 150000 row { | |
| 155 CREATE INDEX i1a ON t1(a); | |
| 156 CREATE INDEX i1b ON t1(b); | |
| 157 CREATE INDEX i1c ON t1(c); | |
| 158 } | |
| 159 db eval COMMIT | |
| 160 | |
| 161 # 5000 SELECTs on an integer comparison where the integer is | |
| 162 # indexed. | |
| 163 # | |
| 164 set sql {} | |
| 165 for {set i 0} {$i<5000} {incr i} { | |
| 166 set lwr [expr {$i*100}] | |
| 167 set upr [expr {($i+10)*100}] | |
| 168 append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;" | |
| 169 } | |
| 170 speed_trial speed2-select3a 5000 stmt $sql | |
| 171 | |
| 172 # 100000 random SELECTs against rowid. | |
| 173 # | |
| 174 set sql {} | |
| 175 for {set i 1} {$i<=100000} {incr i} { | |
| 176 set id [expr {int(rand()*50000)+1}] | |
| 177 append sql "SELECT c=='hi' FROM t1 WHERE rowid=$id;\n" | |
| 178 } | |
| 179 speed_trial speed2-select4a 100000 row $sql | |
| 180 | |
| 181 # 100000 random SELECTs against a unique indexed column. | |
| 182 # | |
| 183 set sql {} | |
| 184 for {set i 1} {$i<=100000} {incr i} { | |
| 185 set id [expr {int(rand()*50000)+1}] | |
| 186 append sql "SELECT c FROM t1 WHERE a=$id;" | |
| 187 } | |
| 188 speed_trial speed2-select5a 100000 row $sql | |
| 189 | |
| 190 # 50000 random SELECTs against an indexed column text column | |
| 191 # | |
| 192 set sql {} | |
| 193 db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000} { | |
| 194 append sql "SELECT c FROM t1 WHERE c='$c';" | |
| 195 } | |
| 196 speed_trial speed2-select6a 50000 row $sql | |
| 197 | |
| 198 # Vacuum | |
| 199 speed_trial speed2-vacuum2 100000 row VACUUM | |
| 200 | |
| 201 | |
| 202 # 5000 SELECTs on an integer comparison where the integer is | |
| 203 # indexed. | |
| 204 # | |
| 205 set sql {} | |
| 206 for {set i 0} {$i<5000} {incr i} { | |
| 207 set lwr [expr {$i*100}] | |
| 208 set upr [expr {($i+10)*100}] | |
| 209 append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;" | |
| 210 } | |
| 211 speed_trial speed2-select3b 5000 stmt $sql | |
| 212 | |
| 213 # 100000 random SELECTs against rowid. | |
| 214 # | |
| 215 set sql {} | |
| 216 for {set i 1} {$i<=100000} {incr i} { | |
| 217 set id [expr {int(rand()*50000)+1}] | |
| 218 append sql "SELECT c=='hi' FROM t1 WHERE rowid=$id;\n" | |
| 219 } | |
| 220 speed_trial speed2-select4b 100000 row $sql | |
| 221 | |
| 222 # 100000 random SELECTs against a unique indexed column. | |
| 223 # | |
| 224 set sql {} | |
| 225 for {set i 1} {$i<=100000} {incr i} { | |
| 226 set id [expr {int(rand()*50000)+1}] | |
| 227 append sql "SELECT c FROM t1 WHERE a=$id;" | |
| 228 } | |
| 229 speed_trial speed2-select5b 100000 row $sql | |
| 230 | |
| 231 # 50000 random SELECTs against an indexed column text column | |
| 232 # | |
| 233 set sql {} | |
| 234 db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000} { | |
| 235 append sql "SELECT c FROM t1 WHERE c='$c';" | |
| 236 } | |
| 237 speed_trial speed2-select6b 50000 row $sql | |
| 238 | |
| 239 # 5000 updates of ranges where the field being compared is indexed. | |
| 240 # | |
| 241 set sql {} | |
| 242 for {set i 0} {$i<5000} {incr i} { | |
| 243 set lwr [expr {$i*2}] | |
| 244 set upr [expr {($i+1)*2}] | |
| 245 append sql "UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr;" | |
| 246 } | |
| 247 db eval BEGIN | |
| 248 speed_trial speed2-update1 5000 stmt $sql | |
| 249 db eval COMMIT | |
| 250 | |
| 251 # 50000 single-row updates. An index is used to find the row quickly. | |
| 252 # | |
| 253 set sql {} | |
| 254 for {set i 0} {$i<50000} {incr i} { | |
| 255 set r [expr {int(rand()*500000)}] | |
| 256 append sql "UPDATE t1 SET b=$r WHERE a=$i;" | |
| 257 } | |
| 258 db eval BEGIN | |
| 259 speed_trial speed2-update2 50000 row $sql | |
| 260 db eval COMMIT | |
| 261 | |
| 262 # 1 big text update that touches every row in the table. | |
| 263 # | |
| 264 speed_trial speed2-update3 50000 row { | |
| 265 UPDATE t1 SET c=a; | |
| 266 } | |
| 267 | |
| 268 # Many individual text updates. Each row in the table is | |
| 269 # touched through an index. | |
| 270 # | |
| 271 set sql {} | |
| 272 for {set i 1} {$i<=50000} {incr i} { | |
| 273 set r [expr {int(rand()*500000)}] | |
| 274 append sql "UPDATE t1 SET c='[number_name $r]' WHERE a=$i;" | |
| 275 } | |
| 276 db eval BEGIN | |
| 277 speed_trial speed2-update4 50000 row $sql | |
| 278 db eval COMMIT | |
| 279 | |
| 280 # Delete all content in a table. | |
| 281 # | |
| 282 speed_trial speed2-delete1 50000 row {DELETE FROM t1} | |
| 283 | |
| 284 # Copy one table into another | |
| 285 # | |
| 286 speed_trial speed2-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2} | |
| 287 | |
| 288 # Delete all content in a table, one row at a time. | |
| 289 # | |
| 290 speed_trial speed2-delete2 50000 row {DELETE FROM t1 WHERE 1} | |
| 291 | |
| 292 # Refill the table yet again | |
| 293 # | |
| 294 speed_trial speed2-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2} | |
| 295 | |
| 296 # Drop the table and recreate it without its indices. | |
| 297 # | |
| 298 db eval BEGIN | |
| 299 speed_trial speed2-drop1 50000 row { | |
| 300 DROP TABLE t1; | |
| 301 CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT); | |
| 302 } | |
| 303 db eval COMMIT | |
| 304 | |
| 305 # Refill the table yet again. This copy should be faster because | |
| 306 # there are no indices to deal with. | |
| 307 # | |
| 308 speed_trial speed2-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2} | |
| 309 | |
| 310 # Select 20000 rows from the table at random. | |
| 311 # | |
| 312 speed_trial speed2-random1 50000 row { | |
| 313 SELECT rowid FROM t1 ORDER BY random() LIMIT 20000 | |
| 314 } | |
| 315 | |
| 316 # Delete 20000 random rows from the table. | |
| 317 # | |
| 318 speed_trial speed2-random-del1 20000 row { | |
| 319 DELETE FROM t1 WHERE rowid IN | |
| 320 (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000) | |
| 321 } | |
| 322 do_test speed2-1.1 { | |
| 323 db one {SELECT count(*) FROM t1} | |
| 324 } 30000 | |
| 325 | |
| 326 | |
| 327 # Delete 20000 more rows at random from the table. | |
| 328 # | |
| 329 speed_trial speed2-random-del2 20000 row { | |
| 330 DELETE FROM t1 WHERE rowid IN | |
| 331 (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000) | |
| 332 } | |
| 333 do_test speed2-1.2 { | |
| 334 db one {SELECT count(*) FROM t1} | |
| 335 } 10000 | |
| 336 speed_trial_summary speed2 | |
| 337 | |
| 338 | |
| 339 finish_test | |
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