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Add speed-test scripts that also show EXPLAIN output. (CVS 5017)
FossilOrigin-Name: d11f5dafdaf7c18c43615d0ac018c7d221460244
This commit is contained in:
drh
12
manifest
12
manifest
@@ -1,5 +1,5 @@
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C Make\ssure\sthe\sdatabase\sconnection\smutex\sis\sheld\sbefore\scalling\nsqlite3SafetyOn()\sor\ssqlite3SafetyOff().\s\sTicket\s#3059.\s(CVS\s5016)
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D 2008-04-16T00:49:12
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C Add\sspeed-test\sscripts\sthat\salso\sshow\sEXPLAIN\soutput.\s(CVS\s5017)
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D 2008-04-16T12:57:48
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F Makefile.arm-wince-mingw32ce-gcc ac5f7b2cef0cd850d6f755ba6ee4ab961b1fadf7
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F Makefile.in 25b3282a4ac39388632c2fb0e044ff494d490952
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F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
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@@ -442,10 +442,12 @@ F test/soak.test 64f9b27fbcdec43335a88c546ce1983e6ba40d7b
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F test/softheap1.test c9146eda576eedb62192b771293a2115d9af8456
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F test/sort.test 0e4456e729e5a92a625907c63dcdedfbe72c5dc5
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F test/speed1.test 22e1b27af0683ed44dcd2f93ed817a9c3e65084a
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F test/speed1p.explain d841e650a04728b39e6740296b852dccdca9b2cb
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F test/speed1p.test 5f79987671f930a8aa651091c2952c1782b0df83
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F test/speed2.test 53177056baf6556dcbdcf032bbdfc41c1aa74ded
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F test/speed3.test e312d7e442a5047d730569fdae2ba99bc94e1a13
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F test/speed4.test 20d8ea20bea3ca09c3ef3b5ec820a17e58e132cb
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F test/speed4p.explain 6b5f104ebeb34a038b2f714150f51d01143e59aa
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F test/speed4p.test 0e51908951677de5a969b723e03a27a1c45db38b
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F test/sqllimits1.test 68f7eab0bfc27ef68d677864d37e37e38f67db00
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F test/subquery.test 8203f85db56ba022a57a0589890090c8feed4e59
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@@ -630,7 +632,7 @@ F www/tclsqlite.tcl 8be95ee6dba05eabcd27a9d91331c803f2ce2130
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F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
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F www/version3.tcl 890248cf7b70e60c383b0e84d77d5132b3ead42b
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F www/whentouse.tcl fc46eae081251c3c181bd79c5faef8195d7991a5
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P cce8deae2d556916e2817e0cb9748dceb162085d
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R 7a340507e41c10c8a2cb1cddf539eada
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P d35dea059e2cb936e4277f513f036b9b0bdfc4a5
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R c0b22004b0ac521d974e7b893302fd7e
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U drh
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Z ea939e8bf0d325aad906011ffe8ec67e
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Z 1ac53e97ed99016f506aa1047f716fd9
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@@ -1 +1 @@
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d35dea059e2cb936e4277f513f036b9b0bdfc4a5
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d11f5dafdaf7c18c43615d0ac018c7d221460244
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366
test/speed1p.explain
Normal file
366
test/speed1p.explain
Normal file
@@ -0,0 +1,366 @@
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# 2008 March 21
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#*************************************************************************
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# This file implements regression tests for SQLite library. The
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# focus of this script is measuring executing speed.
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#
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# This is a copy of speed1.test modified to user prepared statements.
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#
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# $Id: speed1p.explain,v 1.1 2008/04/16 12:57:48 drh Exp $
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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speed_trial_init speed1
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# Set a uniform random seed
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expr srand(0)
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set sqlout [open speed1.txt w]
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proc tracesql {sql} {
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puts $::sqlout $sql\;
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}
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#db trace tracesql
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# The number_name procedure below converts its argment (an integer)
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# into a string which is the English-language name for that number.
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#
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# Example:
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#
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# puts [number_name 123] -> "one hundred twenty three"
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#
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set ones {zero one two three four five six seven eight nine
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ten eleven twelve thirteen fourteen fifteen sixteen seventeen
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eighteen nineteen}
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set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
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proc number_name {n} {
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if {$n>=1000} {
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set txt "[number_name [expr {$n/1000}]] thousand"
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set n [expr {$n%1000}]
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} else {
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set txt {}
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}
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if {$n>=100} {
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append txt " [lindex $::ones [expr {$n/100}]] hundred"
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set n [expr {$n%100}]
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}
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if {$n>=20} {
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append txt " [lindex $::tens [expr {$n/10}]]"
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set n [expr {$n%10}]
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}
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if {$n>0} {
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append txt " [lindex $::ones $n]"
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}
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set txt [string trim $txt]
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if {$txt==""} {set txt zero}
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return $txt
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}
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# Create a database schema.
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#
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do_test speed1p-1.0 {
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execsql {
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PRAGMA page_size=1024;
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PRAGMA cache_size=8192;
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PRAGMA locking_mode=EXCLUSIVE;
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CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
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CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT);
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CREATE INDEX i2a ON t2(a);
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CREATE INDEX i2b ON t2(b);
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}
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execsql {
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SELECT name FROM sqlite_master ORDER BY 1;
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}
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} {i2a i2b t1 t2}
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# 50000 INSERTs on an unindexed table
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#
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set list {}
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for {set i 1} {$i<=50000} {incr i} {
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set r [expr {int(rand()*500000)}]
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set x [number_name $r]
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lappend list $i $r $x
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}
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set script {
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foreach {i r x} $::list {
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db eval {INSERT INTO t1 VALUES($i,$r,$x)}
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}
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}
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explain {INSERT INTO t1 VALUES($i,$r,$x)}
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db eval BEGIN
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speed_trial_tcl speed1p-insert1 50000 row $script
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db eval COMMIT
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# 50000 INSERTs on an indexed table
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#
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set list {}
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for {set i 1} {$i<=50000} {incr i} {
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set r [expr {int(rand()*500000)}]
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set x [number_name $r]
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lappend list $i $r $x
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}
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set script {
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foreach {i r x} $::list {
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db eval {INSERT INTO t2 VALUES($i,$r,$x)}
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}
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}
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explain {INSERT INTO t2 VALUES($i,$r,$x)}
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db eval BEGIN
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speed_trial_tcl speed1p-insert2 50000 row $script
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db eval COMMIT
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# 50 SELECTs on an integer comparison. There is no index so
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# a full table scan is required.
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#
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set list {}
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for {set i 0} {$i<50} {incr i} {
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set lwr [expr {$i*100}]
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set upr [expr {($i+10)*100}]
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lappend list $lwr $upr
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}
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set script {
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foreach {lwr upr} $::list {
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db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
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}
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}
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explain {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
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db eval BEGIN
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speed_trial_tcl speed1p-select1 [expr {50*50000}] row $script
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db eval COMMIT
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# 50 SELECTs on an LIKE comparison. There is no index so a full
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# table scan is required.
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#
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set list {}
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for {set i 0} {$i<50} {incr i} {
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lappend list "%[number_name $i]%"
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}
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set script {
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foreach pattern $::list {
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db eval {SELECT count(*), avg(b) FROM t1 WHERE c LIKE $pattern}
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}
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}
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explain {SELECT count(*), avg(b) FROM t1 WHERE c LIKE $pattern}
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db eval BEGIN
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speed_trial_tcl speed1p-select2 [expr {50*50000}] row $script
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db eval COMMIT
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# Create indices
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#
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explain {CREATE INDEX i1a ON t1(a)}
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explain {CREATE INDEX i1b ON t1(b)}
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db eval BEGIN
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speed_trial speed1p-createidx 150000 row {
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CREATE INDEX i1a ON t1(a);
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CREATE INDEX i1b ON t1(b);
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CREATE INDEX i1c ON t1(c);
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}
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db eval COMMIT
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# 5000 SELECTs on an integer comparison where the integer is
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# indexed.
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#
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set list {}
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for {set i 0} {$i<5000} {incr i} {
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set lwr [expr {$i*100}]
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set upr [expr {($i+10)*100}]
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lappend list $lwr $upr
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}
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set script {
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foreach {lwr upr} $::list {
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db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
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}
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}
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explain {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
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db eval BEGIN
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speed_trial_tcl speed1p-select3 5000 stmt $script
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db eval COMMIT
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# 100000 random SELECTs against rowid.
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#
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set list {}
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for {set i 1} {$i<=100000} {incr i} {
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set id [expr {int(rand()*50000)+1}]
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lappend list $id
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}
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set script {
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foreach id $::list {
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db eval {SELECT c FROM t1 WHERE rowid=$id}
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}
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}
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explain {SELECT c FROM t1 WHERE rowid=$id}
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db eval BEGIN
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speed_trial_tcl speed1p-select4 100000 row $script
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db eval COMMIT
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# 100000 random SELECTs against a unique indexed column.
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#
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set list {}
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for {set i 1} {$i<=100000} {incr i} {
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set id [expr {int(rand()*50000)+1}]
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lappend list $id
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}
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set script {
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foreach id $::list {
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db eval {SELECT c FROM t1 WHERE a=$id}
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}
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}
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explain {SELECT c FROM t1 WHERE a=$id}
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db eval BEGIN
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speed_trial_tcl speed1p-select5 100000 row $script
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db eval COMMIT
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# 50000 random SELECTs against an indexed column text column
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#
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set list [db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000}]
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set script {
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foreach c $::list {
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db eval {SELECT c FROM t1 WHERE c=$c}
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}
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}
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explain {SELECT c FROM t1 WHERE c=$c}
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db eval BEGIN
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speed_trial_tcl speed1p-select6 50000 row $script
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db eval COMMIT
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# Vacuum
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speed_trial speed1p-vacuum 100000 row VACUUM
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# 5000 updates of ranges where the field being compared is indexed.
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#
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set list {}
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for {set i 0} {$i<5000} {incr i} {
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set lwr [expr {$i*2}]
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set upr [expr {($i+1)*2}]
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lappend list $lwr $upr
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}
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set script {
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foreach {lwr upr} $::list {
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db eval {UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr}
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}
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}
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explain {UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr}
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db eval BEGIN
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speed_trial_tcl speed1p-update1 5000 stmt $script
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db eval COMMIT
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# 50000 single-row updates. An index is used to find the row quickly.
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#
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set list {}
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for {set i 0} {$i<50000} {incr i} {
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set r [expr {int(rand()*500000)}]
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lappend list $i $r
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}
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set script {
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foreach {i r} $::list {
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db eval {UPDATE t1 SET b=$r WHERE a=$i}
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}
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}
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explain {UPDATE t1 SET b=$r WHERE a=$i}
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db eval BEGIN
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speed_trial_tcl speed1p-update2 50000 row $script
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db eval COMMIT
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# 1 big text update that touches every row in the table.
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#
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explain {UPDATE t1 SET c=a}
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speed_trial speed1p-update3 50000 row {
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UPDATE t1 SET c=a;
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}
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# Many individual text updates. Each row in the table is
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# touched through an index.
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#
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set list {}
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for {set i 1} {$i<=50000} {incr i} {
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set r [expr {int(rand()*500000)}]
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lappend list $i [number_name $r]
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}
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set script {
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foreach {i x} $::list {
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db eval {UPDATE t1 SET c=$x WHERE a=$i}
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}
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}
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explain {UPDATE t1 SET c=$x WHERE a=$i}
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db eval BEGIN
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speed_trial_tcl speed1p-update4 50000 row $script
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db eval COMMIT
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# Delete all content in a table.
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#
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explain {DELETE FROM t1}
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speed_trial speed1p-delete1 50000 row {DELETE FROM t1}
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# Copy one table into another
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#
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explain {INSERT INTO t1 SELECT * FROM t2}
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speed_trial speed1p-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2}
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# Delete all content in a table, one row at a time.
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#
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explain {DELETE FROM t1 WHERE 1}
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speed_trial speed1p-delete2 50000 row {DELETE FROM t1 WHERE 1}
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# Refill the table yet again
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#
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speed_trial speed1p-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2}
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# Drop the table and recreate it without its indices.
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#
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explain {DROP TABLE t1}
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explain {CREATE TABLE tX(a INTEGER, b INTEGER, c TEXT)}
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db eval BEGIN
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speed_trial speed1p-drop1 50000 row {
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DROP TABLE t1;
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CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
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}
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db eval COMMIT
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# Refill the table yet again. This copy should be faster because
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# there are no indices to deal with.
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#
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speed_trial speed1p-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2}
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# Select 20000 rows from the table at random.
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#
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explain {SELECT rowid FROM t1 ORDER BY random() LIMIT 20000}
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speed_trial speed1p-random1 50000 row {
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SELECT rowid FROM t1 ORDER BY random() LIMIT 20000
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}
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# Delete 20000 random rows from the table.
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#
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explain {DELETE FROM t1 WHERE rowid IN
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(SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)}
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speed_trial speed1p-random-del1 20000 row {
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DELETE FROM t1 WHERE rowid IN
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(SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
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}
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do_test speed1p-1.1 {
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db one {SELECT count(*) FROM t1}
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} 30000
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# Delete 20000 more rows at random from the table.
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#
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speed_trial speed1p-random-del2 20000 row {
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DELETE FROM t1 WHERE rowid IN
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(SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
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}
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do_test speed1p-1.2 {
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db one {SELECT count(*) FROM t1}
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} 10000
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speed_trial_summary speed1
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finish_test
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283
test/speed4p.explain
Normal file
283
test/speed4p.explain
Normal file
@@ -0,0 +1,283 @@
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# 2007 October 23
|
||||
#
|
||||
# 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. More specifically,
|
||||
# the focus is on the speed of:
|
||||
#
|
||||
# * joins
|
||||
# * views
|
||||
# * sub-selects
|
||||
# * triggers
|
||||
#
|
||||
# $Id: speed4p.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 $txt
|
||||
}
|
||||
|
||||
# Summary of tests:
|
||||
#
|
||||
# speed4p-join1: Join three tables using IPK index.
|
||||
# speed4p-join2: Join three tables using an index.
|
||||
# speed4p-join3: Join two tables without an index.
|
||||
#
|
||||
# speed4p-view1: Querying a view.
|
||||
# speed4p-table1: Same queries as in speed4p-view1, but run directly against
|
||||
# the tables for comparison purposes.
|
||||
#
|
||||
# speed4p-subselect1: A SELECT statement that uses many sub-queries..
|
||||
#
|
||||
# speed4p-trigger1: An INSERT statement that fires a trigger.
|
||||
# speed4p-trigger2: An UPDATE statement that fires a trigger.
|
||||
# speed4p-trigger3: A DELETE statement that fires a trigger.
|
||||
# speed4p-notrigger1: Same operation as trigger1, but without the trigger.
|
||||
# speed4p-notrigger2: " trigger2 "
|
||||
# speed4p-notrigger3: " trigger3 "
|
||||
#
|
||||
|
||||
# Set up the schema. Each of the tables t1, t2 and t3 contain 50,000 rows.
|
||||
# This creates a database of around 16MB.
|
||||
execsql {
|
||||
PRAGMA page_size=1024;
|
||||
PRAGMA cache_size=8192;
|
||||
PRAGMA locking_mode=EXCLUSIVE;
|
||||
BEGIN;
|
||||
CREATE TABLE t1(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
|
||||
CREATE TABLE t2(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
|
||||
CREATE TABLE t3(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
|
||||
|
||||
CREATE VIEW v1 AS SELECT rowid, i, t FROM t1;
|
||||
CREATE VIEW v2 AS SELECT rowid, i, t FROM t2;
|
||||
CREATE VIEW v3 AS SELECT rowid, i, t FROM t3;
|
||||
}
|
||||
for {set jj 1} {$jj <= 3} {incr jj} {
|
||||
set stmt [string map "%T% t$jj" {INSERT INTO %T% VALUES(NULL, $i, $t)}]
|
||||
for {set ii 0} {$ii < 50000} {incr ii} {
|
||||
set i [expr {int(rand()*50000)}]
|
||||
set t [number_name $i]
|
||||
execsql $stmt
|
||||
}
|
||||
}
|
||||
execsql {
|
||||
CREATE INDEX i1 ON t1(t);
|
||||
CREATE INDEX i2 ON t2(t);
|
||||
CREATE INDEX i3 ON t3(t);
|
||||
COMMIT;
|
||||
}
|
||||
|
||||
# Before running these tests, disable the compiled statement cache built into
|
||||
# the Tcl interface. This is because we want to test the speed of SQL
|
||||
# compilation as well as execution.
|
||||
#
|
||||
db cache size 0
|
||||
|
||||
# Join t1, t2, t3 on IPK.
|
||||
set sql "SELECT * FROM t1, t2, t3 WHERE t1.oid = t2.oid AND t2.oid = t3.oid"
|
||||
explain $sql
|
||||
speed_trial speed4p-join1 50000 row $sql
|
||||
|
||||
# Join t1, t2, t3 on the non-IPK index.
|
||||
set sql "SELECT * FROM t1, t2, t3 WHERE t1.t = t2.t AND t2.t = t3.t"
|
||||
explain $sql
|
||||
speed_trial speed4p-join2 50000 row $sql
|
||||
|
||||
# Run 10000 simple queries against the views.
|
||||
set script {
|
||||
for {set ii 1} {$ii < 10000} {incr ii} {
|
||||
set v [expr {$ii*3}]
|
||||
set t [expr {$ii%3+1}]
|
||||
db eval "SELECT * FROM v$t WHERE rowid = \$v"
|
||||
}
|
||||
}
|
||||
explain {SELECT * FROm v1 WHERE rowid=$v}
|
||||
speed_trial_tcl speed4p-view1 10000 stmt $script
|
||||
|
||||
# Run the same 10000 simple queries as in the previous test case against
|
||||
# the underlying tables. The compiled vdbe programs should be identical, so
|
||||
# the only difference in running time is the extra time taken to compile
|
||||
# the view definitions.
|
||||
#
|
||||
set script {
|
||||
for {set ii 1} {$ii < 10000} {incr ii} {
|
||||
set v [expr {$ii*3}]
|
||||
set t [expr {$ii%3+1}]
|
||||
db eval "SELECT t FROM t$t WHERE rowid = \$v"
|
||||
}
|
||||
}
|
||||
explain {SELECT * FROM t1 WHERE rowid=$v}
|
||||
speed_trial_tcl speed4p-table1 10000 stmt $script
|
||||
|
||||
# Run a SELECT that uses sub-queries 10000 times. A total of 30000 sub-selects.
|
||||
#
|
||||
set script {
|
||||
for {set ii 1} {$ii < 10000} {incr ii} {
|
||||
set v [expr {$ii*3}]
|
||||
db eval {
|
||||
SELECT (SELECT t FROM t1 WHERE rowid = $v),
|
||||
(SELECT t FROM t2 WHERE rowid = $v),
|
||||
(SELECT t FROM t3 WHERE rowid = $v)
|
||||
}
|
||||
}
|
||||
}
|
||||
explain {
|
||||
SELECT (SELECT t FROM t1 WHERE rowid = $v),
|
||||
(SELECT t FROM t2 WHERE rowid = $v),
|
||||
(SELECT t FROM t3 WHERE rowid = $v)
|
||||
}
|
||||
speed_trial_tcl speed4p-subselect1 10000 stmt $script
|
||||
|
||||
# The following block tests the speed of some DML statements that cause
|
||||
# triggers to fire.
|
||||
#
|
||||
execsql {
|
||||
CREATE TABLE log(op TEXT, r INTEGER, i INTEGER, t TEXT);
|
||||
CREATE TABLE t4(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
|
||||
CREATE TRIGGER t4_trigger1 AFTER INSERT ON t4 BEGIN
|
||||
INSERT INTO log VALUES('INSERT INTO t4', new.rowid, new.i, new.t);
|
||||
END;
|
||||
CREATE TRIGGER t4_trigger2 AFTER UPDATE ON t4 BEGIN
|
||||
INSERT INTO log VALUES('UPDATE OF t4', new.rowid, new.i, new.t);
|
||||
END;
|
||||
CREATE TRIGGER t4_trigger3 AFTER DELETE ON t4 BEGIN
|
||||
INSERT INTO log VALUES('DELETE OF t4', old.rowid, old.i, old.t);
|
||||
END;
|
||||
BEGIN;
|
||||
}
|
||||
set list {}
|
||||
for {set ii 1} {$ii < 10000} {incr ii} {
|
||||
lappend list $ii [number_name $ii]
|
||||
}
|
||||
set script {
|
||||
foreach {ii name} $::list {
|
||||
db eval {INSERT INTO t4 VALUES(NULL, $ii, $name)}
|
||||
}
|
||||
}
|
||||
explain {INSERT INTO t4 VALUES(NULL, $ii, $name)}
|
||||
speed_trial_tcl speed4p-trigger1 10000 stmt $script
|
||||
|
||||
set list {}
|
||||
for {set ii 1} {$ii < 20000} {incr ii 2} {
|
||||
set ii2 [expr {$ii*2}]
|
||||
lappend list $ii $ii2 [number_name $ii2]
|
||||
}
|
||||
set script {
|
||||
foreach {ii ii2 name} $::list {
|
||||
db eval {
|
||||
UPDATE t4 SET i = $ii2, t = $name WHERE rowid = $ii;
|
||||
}
|
||||
}
|
||||
}
|
||||
explain {UPDATE t4 SET i = $ii2, t = $name WHERE rowid = $ii}
|
||||
speed_trial_tcl speed4p-trigger2 10000 stmt $script
|
||||
|
||||
set script {
|
||||
for {set ii 1} {$ii < 20000} {incr ii 2} {
|
||||
db eval {DELETE FROM t4 WHERE rowid = $ii}
|
||||
}
|
||||
}
|
||||
explain {DELETE FROM t4 WHERE rowid = $ii}
|
||||
speed_trial_tcl speed4p-trigger3 10000 stmt $script
|
||||
execsql {COMMIT}
|
||||
|
||||
# The following block contains the same tests as the above block that
|
||||
# tests triggers, with one crucial difference: no triggers are defined.
|
||||
# So the difference in speed between these tests and the preceding ones
|
||||
# is the amount of time taken to compile and execute the trigger programs.
|
||||
#
|
||||
execsql {
|
||||
DROP TABLE t4;
|
||||
DROP TABLE log;
|
||||
VACUUM;
|
||||
CREATE TABLE t4(rowid INTEGER PRIMARY KEY, i INTEGER, t TEXT);
|
||||
BEGIN;
|
||||
}
|
||||
set list {}
|
||||
for {set ii 1} {$ii < 10000} {incr ii} {
|
||||
lappend list $ii [number_name $ii]
|
||||
}
|
||||
set script {
|
||||
foreach {ii name} $::list {
|
||||
db eval {INSERT INTO t4 VALUES(NULL, $ii, $name);}
|
||||
}
|
||||
}
|
||||
explain {INSERT INTO t4 VALUES(NULL, $ii, $name)}
|
||||
speed_trial_tcl speed4p-notrigger1 10000 stmt $script
|
||||
|
||||
set list {}
|
||||
for {set ii 1} {$ii < 20000} {incr ii 2} {
|
||||
set ii2 [expr {$ii*2}]
|
||||
lappend list $ii $ii2 [number_name $ii2]
|
||||
}
|
||||
set script {
|
||||
foreach {ii ii2 name} $::list {
|
||||
db eval {
|
||||
UPDATE t4 SET i = $ii2, t = $name WHERE rowid = $ii;
|
||||
}
|
||||
}
|
||||
}
|
||||
explain {UPDATE t4 SET i = $ii2, t = $name WHERE rowid = $ii}
|
||||
speed_trial_tcl speed4p-notrigger2 10000 stmt $script
|
||||
|
||||
set script {
|
||||
for {set ii 1} {$ii < 20000} {incr ii 2} {
|
||||
db eval {DELETE FROM t4 WHERE rowid = $ii}
|
||||
}
|
||||
}
|
||||
explain {DELETE FROM t4 WHERE rowid = $ii}
|
||||
speed_trial_tcl speed4p-notrigger3 10000 stmt $script
|
||||
execsql {COMMIT}
|
||||
|
||||
speed_trial_summary speed4
|
||||
finish_test
|
||||
Reference in New Issue
Block a user