Annotation of embedaddon/sqlite3/test/speed2.test, revision 1.1
1.1 ! misho 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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