Get `gn gen` to succeed on Windows

third_party/sqlite/src/tool/speedtest.tcl

+#!/usr/bin/tclsh
+#
+# Run this script using TCLSH to do a speed comparison between
+# various versions of SQLite and PostgreSQL and MySQL
+#
+
+# Run a test
+#
+set cnt 1
+proc runtest {title} {
+  global cnt
+  set sqlfile test$cnt.sql
+  puts "<h2>Test $cnt: $title</h2>"
+  incr cnt
+  set fd [open $sqlfile r]
+  set sql [string trim [read $fd [file size $sqlfile]]]
+  close $fd
+  set sx [split $sql \n]
+  set n [llength $sx]
+  if {$n>8} {
+    set sql {}
+    for {set i 0} {$i<3} {incr i} {append sql [lindex $sx $i]<br>\n}
+    append sql  "<i>... [expr {$n-6}] lines omitted</i><br>\n"
+    for {set i [expr {$n-3}]} {$i<$n} {incr i} {
+      append sql [lindex $sx $i]<br>\n
+    }
+  } else {
+    regsub -all \n [string trim $sql] <br> sql
+  }
+  puts "<blockquote>"
+  puts "$sql"
+  puts "</blockquote><table border=0 cellpadding=0 cellspacing=0>"
+  set format {<tr><td>%s</td><td align="right">&nbsp;&nbsp;&nbsp;%.3f</td></tr>}
+  set delay 1000
+#  exec sync; after $delay;
+#  set t [time "exec psql drh <$sqlfile" 1]
+#  set t [expr {[lindex $t 0]/1000000.0}]
+#  puts [format $format PostgreSQL: $t]
+  exec sync; after $delay;
+  set t [time "exec mysql -f drh <$sqlfile" 1]
+  set t [expr {[lindex $t 0]/1000000.0}]
+  puts [format $format MySQL: $t]
+#  set t [time "exec ./sqlite232 s232.db <$sqlfile" 1]
+#  set t [expr {[lindex $t 0]/1000000.0}]
+#  puts [format $format {SQLite 2.3.2:} $t]
+#  set t [time "exec ./sqlite-100 s100.db <$sqlfile" 1]
+#  set t [expr {[lindex $t 0]/1000000.0}]
+#  puts [format $format {SQLite 2.4 (cache=100):} $t]
+  exec sync; after $delay;
+  set t [time "exec ./sqlite248 s2k.db <$sqlfile" 1]
+  set t [expr {[lindex $t 0]/1000000.0}]
+  puts [format $format {SQLite 2.4.8:} $t]
+  exec sync; after $delay;
+  set t [time "exec ./sqlite248 sns.db <$sqlfile" 1]
+  set t [expr {[lindex $t 0]/1000000.0}]
+  puts [format $format {SQLite 2.4.8 (nosync):} $t]
+  exec sync; after $delay;
+  set t [time "exec ./sqlite2412 s2kb.db <$sqlfile" 1]
+  set t [expr {[lindex $t 0]/1000000.0}]
+  puts [format $format {SQLite 2.4.12:} $t]
+  exec sync; after $delay;
+  set t [time "exec ./sqlite2412 snsb.db <$sqlfile" 1]
+  set t [expr {[lindex $t 0]/1000000.0}]
+  puts [format $format {SQLite 2.4.12 (nosync):} $t]
+#  set t [time "exec ./sqlite-t1 st1.db <$sqlfile" 1]
+#  set t [expr {[lindex $t 0]/1000000.0}]
+#  puts [format $format {SQLite 2.4 (test):} $t]
+  puts "</table>"
+}
+
+# Initialize the environment
+#
+expr srand(1)
+catch {exec /bin/sh -c {rm -f s*.db}}
+set fd [open clear.sql w]
+puts $fd {
+  drop table t1;
+  drop table t2;
+}
+close $fd
+catch {exec psql drh <clear.sql}
+catch {exec mysql drh <clear.sql}
+set fd [open 2kinit.sql w]
+puts $fd {
+  PRAGMA default_cache_size=2000;
+  PRAGMA default_synchronous=on;
+}
+close $fd
+exec ./sqlite248 s2k.db <2kinit.sql
+exec ./sqlite2412 s2kb.db <2kinit.sql
+set fd [open nosync-init.sql w]
+puts $fd {
+  PRAGMA default_cache_size=2000;
+  PRAGMA default_synchronous=off;
+}
+close $fd
+exec ./sqlite248 sns.db <nosync-init.sql
+exec ./sqlite2412 snsb.db <nosync-init.sql
+set ones {zero one two three four five six seven eight nine
+          ten eleven twelve thirteen fourteen fifteen sixteen seventeen
+          eighteen nineteen}
+set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
+proc number_name {n} {
+  if {$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 $txt
+}
+
+
+
+set fd [open test$cnt.sql w]
+puts $fd "CREATE TABLE t1(a INTEGER, b INTEGER, c VARCHAR(100));"
+for {set i 1} {$i<=1000} {incr i} {
+  set r [expr {int(rand()*100000)}]
+  puts $fd "INSERT INTO t1 VALUES($i,$r,'[number_name $r]');"
+}
+close $fd
+runtest {1000 INSERTs}
+
+
+
+set fd [open test$cnt.sql w]
+puts $fd "BEGIN;"
+puts $fd "CREATE TABLE t2(a INTEGER, b INTEGER, c VARCHAR(100));"
+for {set i 1} {$i<=25000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  puts $fd "INSERT INTO t2 VALUES($i,$r,'[number_name $r]');"
+}
+puts $fd "COMMIT;"
+close $fd
+runtest {25000 INSERTs in a transaction}
+
+
+
+set fd [open test$cnt.sql w]
+for {set i 0} {$i<100} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+10)*100}]
+  puts $fd "SELECT count(*), avg(b) FROM t2 WHERE b>=$lwr AND b<$upr;"
+}
+close $fd
+runtest {100 SELECTs without an index}
+
+
+
+set fd [open test$cnt.sql w]
+for {set i 1} {$i<=100} {incr i} {
+  puts $fd "SELECT count(*), avg(b) FROM t2 WHERE c LIKE '%[number_name $i]%';"
+}
+close $fd
+runtest {100 SELECTs on a string comparison}
+
+
+
+set fd [open test$cnt.sql w]
+puts $fd {CREATE INDEX i2a ON t2(a);}
+puts $fd {CREATE INDEX i2b ON t2(b);}
+close $fd
+runtest {Creating an index}
+
+
+
+set fd [open test$cnt.sql w]
+for {set i 0} {$i<5000} {incr i} {
+  set lwr [expr {$i*100}]
+  set upr [expr {($i+1)*100}]
+  puts $fd "SELECT count(*), avg(b) FROM t2 WHERE b>=$lwr AND b<$upr;"
+}
+close $fd
+runtest {5000 SELECTs with an index}
+
+
+
+set fd [open test$cnt.sql w]
+puts $fd "BEGIN;"
+for {set i 0} {$i<1000} {incr i} {
+  set lwr [expr {$i*10}]
+  set upr [expr {($i+1)*10}]
+  puts $fd "UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr;"
+}
+puts $fd "COMMIT;"
+close $fd
+runtest {1000 UPDATEs without an index}
+
+
+
+set fd [open test$cnt.sql w]
+puts $fd "BEGIN;"
+for {set i 1} {$i<=25000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  puts $fd "UPDATE t2 SET b=$r WHERE a=$i;"
+}
+puts $fd "COMMIT;"
+close $fd
+runtest {25000 UPDATEs with an index}
+
+
+set fd [open test$cnt.sql w]
+puts $fd "BEGIN;"
+for {set i 1} {$i<=25000} {incr i} {
+  set r [expr {int(rand()*500000)}]
+  puts $fd "UPDATE t2 SET c='[number_name $r]' WHERE a=$i;"
+}
+puts $fd "COMMIT;"
+close $fd
+runtest {25000 text UPDATEs with an index}
+
+
+
+set fd [open test$cnt.sql w]
+puts $fd "BEGIN;"
+puts $fd "INSERT INTO t1 SELECT * FROM t2;"
+puts $fd "INSERT INTO t2 SELECT * FROM t1;"
+puts $fd "COMMIT;"
+close $fd
+runtest {INSERTs from a SELECT}
+
+
+
+set fd [open test$cnt.sql w]
+puts $fd {DELETE FROM t2 WHERE c LIKE '%fifty%';}
+close $fd
+runtest {DELETE without an index}
+
+
+
+set fd [open test$cnt.sql w]
+puts $fd {DELETE FROM t2 WHERE a>10 AND a<20000;}
+close $fd
+runtest {DELETE with an index}
+
+
+
+set fd [open test$cnt.sql w]
+puts $fd {INSERT INTO t2 SELECT * FROM t1;}
+close $fd
+runtest {A big INSERT after a big DELETE}
+
+
+
+set fd [open test$cnt.sql w]
+puts $fd {BEGIN;}
+puts $fd {DELETE FROM t1;}
+for {set i 1} {$i<=3000} {incr i} {
+  set r [expr {int(rand()*100000)}]
+  puts $fd "INSERT INTO t1 VALUES($i,$r,'[number_name $r]');"
+}
+puts $fd {COMMIT;}
+close $fd
+runtest {A big DELETE followed by many small INSERTs}
+
+
+
+set fd [open test$cnt.sql w]
+puts $fd {DROP TABLE t1;}
+puts $fd {DROP TABLE t2;}
+close $fd
+runtest {DROP TABLE}