Index: third_party/sqlite/sqlite-src-3080704/tool/speedtest.tcl |
diff --git a/third_party/sqlite/sqlite-src-3080704/tool/speedtest.tcl b/third_party/sqlite/sqlite-src-3080704/tool/speedtest.tcl |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ef39dc5461d8ce801a17eea8fa7264c3df94f495 |
--- /dev/null |
+++ b/third_party/sqlite/sqlite-src-3080704/tool/speedtest.tcl |
@@ -0,0 +1,275 @@ |
+#!/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"> %.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} |