Annotation of embedaddon/sqlite3/test/speed1p.test, revision 1.1
1.1 ! misho 1: # 2008 March 21
! 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: # This is a copy of speed1.test modified to user prepared statements.
! 15: #
! 16: # $Id: speed1p.test,v 1.7 2009/04/09 01:23:49 drh Exp $
! 17: #
! 18:
! 19: sqlite3_shutdown
! 20: #sqlite3_config_scratch 29000 1
! 21: set old_lookaside [sqlite3_config_lookaside 2048 300]
! 22: #sqlite3_config_pagecache 1024 11000
! 23: set testdir [file dirname $argv0]
! 24: source $testdir/tester.tcl
! 25: speed_trial_init speed1
! 26:
! 27: # Set a uniform random seed
! 28: expr srand(0)
! 29:
! 30: # The number_name procedure below converts its argment (an integer)
! 31: # into a string which is the English-language name for that number.
! 32: #
! 33: # Example:
! 34: #
! 35: # puts [number_name 123] -> "one hundred twenty three"
! 36: #
! 37: set ones {zero one two three four five six seven eight nine
! 38: ten eleven twelve thirteen fourteen fifteen sixteen seventeen
! 39: eighteen nineteen}
! 40: set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
! 41: proc number_name {n} {
! 42: if {$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 $txt
! 62: }
! 63:
! 64: # Create a database schema.
! 65: #
! 66: do_test speed1p-1.0 {
! 67: execsql {
! 68: PRAGMA page_size=1024;
! 69: PRAGMA cache_size=500;
! 70: PRAGMA locking_mode=EXCLUSIVE;
! 71: CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
! 72: CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT);
! 73: CREATE INDEX i2a ON t2(a);
! 74: CREATE INDEX i2b ON t2(b);
! 75: }
! 76: execsql {
! 77: SELECT name FROM sqlite_master ORDER BY 1;
! 78: }
! 79: } {i2a i2b t1 t2}
! 80:
! 81:
! 82: # 50000 INSERTs on an unindexed table
! 83: #
! 84: set list {}
! 85: for {set i 1} {$i<=50000} {incr i} {
! 86: set r [expr {int(rand()*500000)}]
! 87: set x [number_name $r]
! 88: lappend list $i $r $x
! 89: }
! 90: set script {
! 91: foreach {i r x} $::list {
! 92: db eval {INSERT INTO t1 VALUES($i,$r,$x)}
! 93: }
! 94: }
! 95: db eval BEGIN
! 96: speed_trial_tcl speed1p-insert1 50000 row $script
! 97: db eval COMMIT
! 98:
! 99: # 50000 INSERTs on an indexed table
! 100: #
! 101: set list {}
! 102: for {set i 1} {$i<=50000} {incr i} {
! 103: set r [expr {int(rand()*500000)}]
! 104: set x [number_name $r]
! 105: lappend list $i $r $x
! 106: }
! 107: set script {
! 108: foreach {i r x} $::list {
! 109: db eval {INSERT INTO t2 VALUES($i,$r,$x)}
! 110: }
! 111: }
! 112: db eval BEGIN
! 113: speed_trial_tcl speed1p-insert2 50000 row $script
! 114: db eval COMMIT
! 115:
! 116:
! 117:
! 118: # 50 SELECTs on an integer comparison. There is no index so
! 119: # a full table scan is required.
! 120: #
! 121: set list {}
! 122: for {set i 0} {$i<50} {incr i} {
! 123: set lwr [expr {$i*100}]
! 124: set upr [expr {($i+10)*100}]
! 125: lappend list $lwr $upr
! 126: }
! 127: set script {
! 128: foreach {lwr upr} $::list {
! 129: db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
! 130: }
! 131: }
! 132: db eval BEGIN
! 133: speed_trial_tcl speed1p-select1 [expr {50*50000}] row $script
! 134: db eval COMMIT
! 135:
! 136: # 50 SELECTs on an LIKE comparison. There is no index so a full
! 137: # table scan is required.
! 138: #
! 139: set list {}
! 140: for {set i 0} {$i<50} {incr i} {
! 141: lappend list "%[number_name $i]%"
! 142: }
! 143: set script {
! 144: foreach pattern $::list {
! 145: db eval {SELECT count(*), avg(b) FROM t1 WHERE c LIKE $pattern}
! 146: }
! 147: }
! 148: db eval BEGIN
! 149: speed_trial_tcl speed1p-select2 [expr {50*50000}] row $script
! 150: db eval COMMIT
! 151:
! 152: # Create indices
! 153: #
! 154: db eval BEGIN
! 155: speed_trial speed1p-createidx 150000 row {
! 156: CREATE INDEX i1a ON t1(a);
! 157: CREATE INDEX i1b ON t1(b);
! 158: CREATE INDEX i1c ON t1(c);
! 159: }
! 160: db eval COMMIT
! 161:
! 162: # 5000 SELECTs on an integer comparison where the integer is
! 163: # indexed.
! 164: #
! 165: set list {}
! 166: for {set i 0} {$i<5000} {incr i} {
! 167: set lwr [expr {$i*100}]
! 168: set upr [expr {($i+10)*100}]
! 169: lappend list $lwr $upr
! 170: }
! 171: set script {
! 172: foreach {lwr upr} $::list {
! 173: db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
! 174: }
! 175: }
! 176: db eval BEGIN
! 177: speed_trial_tcl speed1p-select3 5000 stmt $script
! 178: db eval COMMIT
! 179:
! 180: # 100000 random SELECTs against rowid.
! 181: #
! 182: set list {}
! 183: for {set i 1} {$i<=100000} {incr i} {
! 184: set id [expr {int(rand()*50000)+1}]
! 185: lappend list $id
! 186: }
! 187: set script {
! 188: foreach id $::list {
! 189: db eval {SELECT c FROM t1 WHERE rowid=$id}
! 190: }
! 191: }
! 192: db eval BEGIN
! 193: speed_trial_tcl speed1p-select4 100000 row $script
! 194: db eval COMMIT
! 195:
! 196: # 100000 random SELECTs against a unique indexed column.
! 197: #
! 198: set list {}
! 199: for {set i 1} {$i<=100000} {incr i} {
! 200: set id [expr {int(rand()*50000)+1}]
! 201: lappend list $id
! 202: }
! 203: set script {
! 204: foreach id $::list {
! 205: db eval {SELECT c FROM t1 WHERE a=$id}
! 206: }
! 207: }
! 208: db eval BEGIN
! 209: speed_trial_tcl speed1p-select5 100000 row $script
! 210: db eval COMMIT
! 211:
! 212: # 50000 random SELECTs against an indexed column text column
! 213: #
! 214: set list [db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000}]
! 215: set script {
! 216: foreach c $::list {
! 217: db eval {SELECT c FROM t1 WHERE c=$c}
! 218: }
! 219: }
! 220: db eval BEGIN
! 221: speed_trial_tcl speed1p-select6 50000 row $script
! 222: db eval COMMIT
! 223:
! 224:
! 225: # Vacuum
! 226: speed_trial speed1p-vacuum 100000 row VACUUM
! 227:
! 228: # 5000 updates of ranges where the field being compared is indexed.
! 229: #
! 230: set list {}
! 231: for {set i 0} {$i<5000} {incr i} {
! 232: set lwr [expr {$i*2}]
! 233: set upr [expr {($i+1)*2}]
! 234: lappend list $lwr $upr
! 235: }
! 236: set script {
! 237: foreach {lwr upr} $::list {
! 238: db eval {UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr}
! 239: }
! 240: }
! 241: db eval BEGIN
! 242: speed_trial_tcl speed1p-update1 5000 stmt $script
! 243: db eval COMMIT
! 244:
! 245: # 50000 single-row updates. An index is used to find the row quickly.
! 246: #
! 247: set list {}
! 248: for {set i 0} {$i<50000} {incr i} {
! 249: set r [expr {int(rand()*500000)}]
! 250: lappend list $i $r
! 251: }
! 252: set script {
! 253: foreach {i r} $::list {
! 254: db eval {UPDATE t1 SET b=$r WHERE a=$i}
! 255: }
! 256: }
! 257: db eval BEGIN
! 258: speed_trial_tcl speed1p-update2 50000 row $script
! 259: db eval COMMIT
! 260:
! 261: # 1 big text update that touches every row in the table.
! 262: #
! 263: speed_trial speed1p-update3 50000 row {
! 264: UPDATE t1 SET c=a;
! 265: }
! 266:
! 267: # Many individual text updates. Each row in the table is
! 268: # touched through an index.
! 269: #
! 270: set list {}
! 271: for {set i 1} {$i<=50000} {incr i} {
! 272: set r [expr {int(rand()*500000)}]
! 273: lappend list $i [number_name $r]
! 274: }
! 275: set script {
! 276: foreach {i x} $::list {
! 277: db eval {UPDATE t1 SET c=$x WHERE a=$i}
! 278: }
! 279: }
! 280: db eval BEGIN
! 281: speed_trial_tcl speed1p-update4 50000 row $script
! 282: db eval COMMIT
! 283:
! 284: # Delete all content in a table.
! 285: #
! 286: speed_trial speed1p-delete1 50000 row {DELETE FROM t1}
! 287:
! 288: # Copy one table into another
! 289: #
! 290: speed_trial speed1p-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2}
! 291:
! 292: # Delete all content in a table, one row at a time.
! 293: #
! 294: speed_trial speed1p-delete2 50000 row {DELETE FROM t1 WHERE 1}
! 295:
! 296: # Refill the table yet again
! 297: #
! 298: speed_trial speed1p-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2}
! 299:
! 300: # Drop the table and recreate it without its indices.
! 301: #
! 302: db eval BEGIN
! 303: speed_trial speed1p-drop1 50000 row {
! 304: DROP TABLE t1;
! 305: CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
! 306: }
! 307: db eval COMMIT
! 308:
! 309: # Refill the table yet again. This copy should be faster because
! 310: # there are no indices to deal with.
! 311: #
! 312: speed_trial speed1p-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2}
! 313:
! 314: # Select 20000 rows from the table at random.
! 315: #
! 316: speed_trial speed1p-random1 50000 row {
! 317: SELECT rowid FROM t1 ORDER BY random() LIMIT 20000
! 318: }
! 319:
! 320: # Delete 20000 random rows from the table.
! 321: #
! 322: speed_trial speed1p-random-del1 20000 row {
! 323: DELETE FROM t1 WHERE rowid IN
! 324: (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
! 325: }
! 326: do_test speed1p-1.1 {
! 327: db one {SELECT count(*) FROM t1}
! 328: } 30000
! 329:
! 330: # Delete 20000 more rows at random from the table.
! 331: #
! 332: speed_trial speed1p-random-del2 20000 row {
! 333: DELETE FROM t1 WHERE rowid IN
! 334: (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
! 335: }
! 336: do_test speed1p-1.2 {
! 337: db one {SELECT count(*) FROM t1}
! 338: } 10000
! 339: speed_trial_summary speed1
! 340:
! 341: db close
! 342: sqlite3_shutdown
! 343: eval sqlite3_config_lookaside $old_lookaside
! 344: sqlite3_initialize
! 345: autoinstall_test_functions
! 346: finish_test
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