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123 lines
2.7 KiB
Tcl
123 lines
2.7 KiB
Tcl
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#--------------------------------------------------------------------------
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# This script contains several sub-programs used to test FTS3/FTS4
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# performance. It does not run the queries directly, but generates SQL
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# scripts that can be run using the shell tool.
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#
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# The following cases are tested:
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#
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# 1. Inserting documents into an FTS3 table.
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# 2. Optimizing an FTS3 table (i.e. "INSERT INTO t1 VALUES('optimize')").
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# 3. Deleting documents from an FTS3 table.
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# 4. Querying FTS3 tables.
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#
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# Number of tokens in vocabulary. And number of tokens in each document.
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#
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set VOCAB_SIZE 2000
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set DOC_SIZE 100
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set NUM_INSERTS 100000
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set NUM_SELECTS 1000
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# Force everything in this script to be deterministic.
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#
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expr {srand(0)}
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proc usage {} {
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puts stderr "Usage: $::argv0 <rows> <selects>"
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exit -1
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}
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proc sql {sql} {
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puts $::fd $sql
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}
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# Return a list of $nWord randomly generated tokens each between 2 and 10
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# characters in length.
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#
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proc build_vocab {nWord} {
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set ret [list]
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set chars [list a b c d e f g h i j k l m n o p q r s t u v w x y z]
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for {set i 0} {$i<$nWord} {incr i} {
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set len [expr {int((rand()*9.0)+2)}]
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set term ""
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for {set j 0} {$j<$len} {incr j} {
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append term [lindex $chars [expr {int(rand()*[llength $chars])}]]
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}
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lappend ret $term
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}
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set ret
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}
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proc select_term {} {
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set n [llength $::vocab]
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set t [expr int(rand()*$n*3)]
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if {$t>=2*$n} { set t [expr {($t-2*$n)/100}] }
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if {$t>=$n} { set t [expr {($t-$n)/10}] }
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lindex $::vocab $t
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}
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proc select_doc {nTerm} {
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set ret [list]
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for {set i 0} {$i<$nTerm} {incr i} {
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lappend ret [select_term]
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}
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set ret
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}
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proc test_1 {nInsert} {
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sql "PRAGMA synchronous = OFF;"
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sql "DROP TABLE IF EXISTS t1;"
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sql "CREATE VIRTUAL TABLE t1 USING fts4;"
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for {set i 0} {$i < $nInsert} {incr i} {
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set doc [select_doc $::DOC_SIZE]
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sql "INSERT INTO t1 VALUES('$doc');"
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}
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}
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proc test_2 {} {
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sql "INSERT INTO t1(t1) VALUES('optimize');"
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}
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proc test_3 {nSelect} {
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for {set i 0} {$i < $nSelect} {incr i} {
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sql "SELECT count(*) FROM t1 WHERE t1 MATCH '[select_term]';"
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}
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}
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proc test_4 {nSelect} {
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for {set i 0} {$i < $nSelect} {incr i} {
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sql "SELECT count(*) FROM t1 WHERE t1 MATCH '[select_term] [select_term]';"
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}
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}
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if {[llength $argv]!=0} usage
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set ::vocab [build_vocab $::VOCAB_SIZE]
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set ::fd [open fts3speed_insert.sql w]
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test_1 $NUM_INSERTS
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close $::fd
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set ::fd [open fts3speed_select.sql w]
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test_3 $NUM_SELECTS
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close $::fd
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set ::fd [open fts3speed_select2.sql w]
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test_4 $NUM_SELECTS
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close $::fd
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set ::fd [open fts3speed_optimize.sql w]
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test_2
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close $::fd
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puts "Success. Created files:"
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puts " fts3speed_insert.sql"
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puts " fts3speed_select.sql"
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puts " fts3speed_select2.sql"
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puts " fts3speed_optimize.sql"
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