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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 14:07:11 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 14:07:11 +0000 |
commit | 63847496f14c813a5d80efd5b7de0f1294ffe1e3 (patch) | |
tree | 01c7571c7c762ceee70638549a99834fdd7c411b /test/speed1p.explain | |
parent | Initial commit. (diff) | |
download | sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.tar.xz sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.zip |
Adding upstream version 3.45.1.upstream/3.45.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | test/speed1p.explain | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/test/speed1p.explain b/test/speed1p.explain new file mode 100644 index 0000000..e32fedd --- /dev/null +++ b/test/speed1p.explain @@ -0,0 +1,366 @@ +# 2008 March 21 +# +# The author disclaims copyright to this source code. In place of +# a legal notice, here is a blessing: +# +# May you do good and not evil. +# May you find forgiveness for yourself and forgive others. +# May you share freely, never taking more than you give. +# +#************************************************************************* +# This file implements regression tests for SQLite library. The +# focus of this script is measuring executing speed. +# +# This is a copy of speed1.test modified to user prepared statements. +# +# $Id: speed1p.explain,v 1.1 2008/04/16 12:57:48 drh Exp $ +# + +set testdir [file dirname $argv0] +source $testdir/tester.tcl +speed_trial_init speed1 + +# Set a uniform random seed +expr srand(0) + +set sqlout [open speed1.txt w] +proc tracesql {sql} { + puts $::sqlout $sql\; +} +#db trace tracesql + +# The number_name procedure below converts its argment (an integer) +# into a string which is the English-language name for that number. +# +# Example: +# +# puts [number_name 123] -> "one hundred twenty three" +# +set ones {zero one two three four five six seven eight nine + ten eleven twelve thirteen fourteen fifteen sixteen seventeen + eighteen nineteen} +set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety} +proc number_name {n} { + if {$n>=1000} { + set txt "[number_name [expr {$n/1000}]] thousand" + set n [expr {$n%1000}] + } else { + set txt {} + } + if {$n>=100} { + append txt " [lindex $::ones [expr {$n/100}]] hundred" + set n [expr {$n%100}] + } + if {$n>=20} { + append txt " [lindex $::tens [expr {$n/10}]]" + set n [expr {$n%10}] + } + if {$n>0} { + append txt " [lindex $::ones $n]" + } + set txt [string trim $txt] + if {$txt==""} {set txt zero} + return $txt +} + +# Create a database schema. +# +do_test speed1p-1.0 { + execsql { + PRAGMA page_size=1024; + PRAGMA cache_size=8192; + PRAGMA locking_mode=EXCLUSIVE; + CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT); + CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT); + CREATE INDEX i2a ON t2(a); + CREATE INDEX i2b ON t2(b); + } + execsql { + SELECT name FROM sqlite_master ORDER BY 1; + } +} {i2a i2b t1 t2} + + +# 50000 INSERTs on an unindexed table +# +set list {} +for {set i 1} {$i<=50000} {incr i} { + set r [expr {int(rand()*500000)}] + set x [number_name $r] + lappend list $i $r $x +} +set script { + foreach {i r x} $::list { + db eval {INSERT INTO t1 VALUES($i,$r,$x)} + } +} +explain {INSERT INTO t1 VALUES($i,$r,$x)} +db eval BEGIN +speed_trial_tcl speed1p-insert1 50000 row $script +db eval COMMIT + +# 50000 INSERTs on an indexed table +# +set list {} +for {set i 1} {$i<=50000} {incr i} { + set r [expr {int(rand()*500000)}] + set x [number_name $r] + lappend list $i $r $x +} +set script { + foreach {i r x} $::list { + db eval {INSERT INTO t2 VALUES($i,$r,$x)} + } +} +explain {INSERT INTO t2 VALUES($i,$r,$x)} +db eval BEGIN +speed_trial_tcl speed1p-insert2 50000 row $script +db eval COMMIT + + + +# 50 SELECTs on an integer comparison. There is no index so +# a full table scan is required. +# +set list {} +for {set i 0} {$i<50} {incr i} { + set lwr [expr {$i*100}] + set upr [expr {($i+10)*100}] + lappend list $lwr $upr +} +set script { + foreach {lwr upr} $::list { + db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr} + } +} +explain {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr} +db eval BEGIN +speed_trial_tcl speed1p-select1 [expr {50*50000}] row $script +db eval COMMIT + +# 50 SELECTs on an LIKE comparison. There is no index so a full +# table scan is required. +# +set list {} +for {set i 0} {$i<50} {incr i} { + lappend list "%[number_name $i]%" +} +set script { + foreach pattern $::list { + db eval {SELECT count(*), avg(b) FROM t1 WHERE c LIKE $pattern} + } +} +explain {SELECT count(*), avg(b) FROM t1 WHERE c LIKE $pattern} +db eval BEGIN +speed_trial_tcl speed1p-select2 [expr {50*50000}] row $script +db eval COMMIT + +# Create indices +# +explain {CREATE INDEX i1a ON t1(a)} +explain {CREATE INDEX i1b ON t1(b)} +db eval BEGIN +speed_trial speed1p-createidx 150000 row { + CREATE INDEX i1a ON t1(a); + CREATE INDEX i1b ON t1(b); + CREATE INDEX i1c ON t1(c); +} +db eval COMMIT + +# 5000 SELECTs on an integer comparison where the integer is +# indexed. +# +set list {} +for {set i 0} {$i<5000} {incr i} { + set lwr [expr {$i*100}] + set upr [expr {($i+10)*100}] + lappend list $lwr $upr +} +set script { + foreach {lwr upr} $::list { + db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr} + } +} +explain {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr} +db eval BEGIN +speed_trial_tcl speed1p-select3 5000 stmt $script +db eval COMMIT + +# 100000 random SELECTs against rowid. +# +set list {} +for {set i 1} {$i<=100000} {incr i} { + set id [expr {int(rand()*50000)+1}] + lappend list $id +} +set script { + foreach id $::list { + db eval {SELECT c FROM t1 WHERE rowid=$id} + } +} +explain {SELECT c FROM t1 WHERE rowid=$id} +db eval BEGIN +speed_trial_tcl speed1p-select4 100000 row $script +db eval COMMIT + +# 100000 random SELECTs against a unique indexed column. +# +set list {} +for {set i 1} {$i<=100000} {incr i} { + set id [expr {int(rand()*50000)+1}] + lappend list $id +} +set script { + foreach id $::list { + db eval {SELECT c FROM t1 WHERE a=$id} + } +} +explain {SELECT c FROM t1 WHERE a=$id} +db eval BEGIN +speed_trial_tcl speed1p-select5 100000 row $script +db eval COMMIT + +# 50000 random SELECTs against an indexed column text column +# +set list [db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000}] +set script { + foreach c $::list { + db eval {SELECT c FROM t1 WHERE c=$c} + } +} +explain {SELECT c FROM t1 WHERE c=$c} +db eval BEGIN +speed_trial_tcl speed1p-select6 50000 row $script +db eval COMMIT + + +# Vacuum +speed_trial speed1p-vacuum 100000 row VACUUM + +# 5000 updates of ranges where the field being compared is indexed. +# +set list {} +for {set i 0} {$i<5000} {incr i} { + set lwr [expr {$i*2}] + set upr [expr {($i+1)*2}] + lappend list $lwr $upr +} +set script { + foreach {lwr upr} $::list { + db eval {UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr} + } +} +explain {UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr} +db eval BEGIN +speed_trial_tcl speed1p-update1 5000 stmt $script +db eval COMMIT + +# 50000 single-row updates. An index is used to find the row quickly. +# +set list {} +for {set i 0} {$i<50000} {incr i} { + set r [expr {int(rand()*500000)}] + lappend list $i $r +} +set script { + foreach {i r} $::list { + db eval {UPDATE t1 SET b=$r WHERE a=$i} + } +} +explain {UPDATE t1 SET b=$r WHERE a=$i} +db eval BEGIN +speed_trial_tcl speed1p-update2 50000 row $script +db eval COMMIT + +# 1 big text update that touches every row in the table. +# +explain {UPDATE t1 SET c=a} +speed_trial speed1p-update3 50000 row { + UPDATE t1 SET c=a; +} + +# Many individual text updates. Each row in the table is +# touched through an index. +# +set list {} +for {set i 1} {$i<=50000} {incr i} { + set r [expr {int(rand()*500000)}] + lappend list $i [number_name $r] +} +set script { + foreach {i x} $::list { + db eval {UPDATE t1 SET c=$x WHERE a=$i} + } +} +explain {UPDATE t1 SET c=$x WHERE a=$i} +db eval BEGIN +speed_trial_tcl speed1p-update4 50000 row $script +db eval COMMIT + +# Delete all content in a table. +# +explain {DELETE FROM t1} +speed_trial speed1p-delete1 50000 row {DELETE FROM t1} + +# Copy one table into another +# +explain {INSERT INTO t1 SELECT * FROM t2} +speed_trial speed1p-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2} + +# Delete all content in a table, one row at a time. +# +explain {DELETE FROM t1 WHERE 1} +speed_trial speed1p-delete2 50000 row {DELETE FROM t1 WHERE 1} + +# Refill the table yet again +# +speed_trial speed1p-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2} + +# Drop the table and recreate it without its indices. +# +explain {DROP TABLE t1} +explain {CREATE TABLE tX(a INTEGER, b INTEGER, c TEXT)} +db eval BEGIN +speed_trial speed1p-drop1 50000 row { + DROP TABLE t1; + CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT); +} +db eval COMMIT + +# Refill the table yet again. This copy should be faster because +# there are no indices to deal with. +# +speed_trial speed1p-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2} + +# Select 20000 rows from the table at random. +# +explain {SELECT rowid FROM t1 ORDER BY random() LIMIT 20000} +speed_trial speed1p-random1 50000 row { + SELECT rowid FROM t1 ORDER BY random() LIMIT 20000 +} + +# Delete 20000 random rows from the table. +# +explain {DELETE FROM t1 WHERE rowid IN + (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)} +speed_trial speed1p-random-del1 20000 row { + DELETE FROM t1 WHERE rowid IN + (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000) +} +do_test speed1p-1.1 { + db one {SELECT count(*) FROM t1} +} 30000 + + +# Delete 20000 more rows at random from the table. +# +speed_trial speed1p-random-del2 20000 row { + DELETE FROM t1 WHERE rowid IN + (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000) +} +do_test speed1p-1.2 { + db one {SELECT count(*) FROM t1} +} 10000 +speed_trial_summary speed1 + +finish_test |