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1 # 2006 November 23 | |
2 # | |
3 # The author disclaims copyright to this source code. In place of | |
4 # a legal notice, here is a blessing: | |
5 # | |
6 # May you do good and not evil. | |
7 # May you find forgiveness for yourself and forgive others. | |
8 # May you share freely, never taking more than you give. | |
9 # | |
10 #************************************************************************* | |
11 # This file implements regression tests for SQLite library. The | |
12 # focus of this script is measuring executing speed. | |
13 # | |
14 # $Id: speed1.test,v 1.11 2009/04/09 01:23:49 drh Exp $ | |
15 # | |
16 | |
17 sqlite3_shutdown | |
18 #sqlite3_config_scratch 29000 1 | |
19 set old_lookaside [sqlite3_config_lookaside 1000 300] | |
20 #sqlite3_config_pagecache 1024 10000 | |
21 set testdir [file dirname $argv0] | |
22 source $testdir/tester.tcl | |
23 speed_trial_init speed1 | |
24 | |
25 # Set a uniform random seed | |
26 expr srand(0) | |
27 | |
28 set sqlout [open speed1.txt w] | |
29 proc tracesql {sql} { | |
30 puts $::sqlout $sql\; | |
31 } | |
32 #db trace tracesql | |
33 | |
34 # The number_name procedure below converts its argment (an integer) | |
35 # into a string which is the English-language name for that number. | |
36 # | |
37 # Example: | |
38 # | |
39 # puts [number_name 123] -> "one hundred twenty three" | |
40 # | |
41 set ones {zero one two three four five six seven eight nine | |
42 ten eleven twelve thirteen fourteen fifteen sixteen seventeen | |
43 eighteen nineteen} | |
44 set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety} | |
45 proc number_name {n} { | |
46 if {$n>=1000} { | |
47 set txt "[number_name [expr {$n/1000}]] thousand" | |
48 set n [expr {$n%1000}] | |
49 } else { | |
50 set txt {} | |
51 } | |
52 if {$n>=100} { | |
53 append txt " [lindex $::ones [expr {$n/100}]] hundred" | |
54 set n [expr {$n%100}] | |
55 } | |
56 if {$n>=20} { | |
57 append txt " [lindex $::tens [expr {$n/10}]]" | |
58 set n [expr {$n%10}] | |
59 } | |
60 if {$n>0} { | |
61 append txt " [lindex $::ones $n]" | |
62 } | |
63 set txt [string trim $txt] | |
64 if {$txt==""} {set txt zero} | |
65 return $txt | |
66 } | |
67 | |
68 # Create a database schema. | |
69 # | |
70 do_test speed1-1.0 { | |
71 execsql { | |
72 PRAGMA page_size=1024; | |
73 PRAGMA cache_size=8192; | |
74 PRAGMA locking_mode=EXCLUSIVE; | |
75 CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT); | |
76 CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT); | |
77 CREATE INDEX i2a ON t2(a); | |
78 CREATE INDEX i2b ON t2(b); | |
79 } | |
80 execsql { | |
81 SELECT name FROM sqlite_master ORDER BY 1; | |
82 } | |
83 } {i2a i2b t1 t2} | |
84 | |
85 | |
86 # 50000 INSERTs on an unindexed table | |
87 # | |
88 set sql {} | |
89 for {set i 1} {$i<=50000} {incr i} { | |
90 set r [expr {int(rand()*500000)}] | |
91 append sql "INSERT INTO t1 VALUES($i,$r,'[number_name $r]');\n" | |
92 } | |
93 db eval BEGIN | |
94 speed_trial speed1-insert1 50000 row $sql | |
95 db eval COMMIT | |
96 | |
97 # 50000 INSERTs on an indexed table | |
98 # | |
99 set sql {} | |
100 for {set i 1} {$i<=50000} {incr i} { | |
101 set r [expr {int(rand()*500000)}] | |
102 append sql "INSERT INTO t2 VALUES($i,$r,'[number_name $r]');\n" | |
103 } | |
104 db eval BEGIN | |
105 speed_trial speed1-insert2 50000 row $sql | |
106 db eval COMMIT | |
107 | |
108 | |
109 | |
110 # 50 SELECTs on an integer comparison. There is no index so | |
111 # a full table scan is required. | |
112 # | |
113 set sql {} | |
114 for {set i 0} {$i<50} {incr i} { | |
115 set lwr [expr {$i*100}] | |
116 set upr [expr {($i+10)*100}] | |
117 append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;" | |
118 } | |
119 db eval BEGIN | |
120 speed_trial speed1-select1 [expr {50*50000}] row $sql | |
121 db eval COMMIT | |
122 | |
123 # 50 SELECTs on an LIKE comparison. There is no index so a full | |
124 # table scan is required. | |
125 # | |
126 set sql {} | |
127 for {set i 0} {$i<50} {incr i} { | |
128 append sql \ | |
129 "SELECT count(*), avg(b) FROM t1 WHERE c LIKE '%[number_name $i]%';" | |
130 } | |
131 db eval BEGIN | |
132 speed_trial speed1-select2 [expr {50*50000}] row $sql | |
133 db eval COMMIT | |
134 | |
135 # Create indices | |
136 # | |
137 db eval BEGIN | |
138 speed_trial speed1-createidx 150000 row { | |
139 CREATE INDEX i1a ON t1(a); | |
140 CREATE INDEX i1b ON t1(b); | |
141 CREATE INDEX i1c ON t1(c); | |
142 } | |
143 db eval COMMIT | |
144 | |
145 # 5000 SELECTs on an integer comparison where the integer is | |
146 # indexed. | |
147 # | |
148 set sql {} | |
149 for {set i 0} {$i<5000} {incr i} { | |
150 set lwr [expr {$i*100}] | |
151 set upr [expr {($i+10)*100}] | |
152 append sql "SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr;" | |
153 } | |
154 db eval BEGIN | |
155 speed_trial speed1-select3 5000 stmt $sql | |
156 db eval COMMIT | |
157 | |
158 # 100000 random SELECTs against rowid. | |
159 # | |
160 set sql {} | |
161 for {set i 1} {$i<=100000} {incr i} { | |
162 set id [expr {int(rand()*50000)+1}] | |
163 append sql "SELECT c FROM t1 WHERE rowid=$id;" | |
164 } | |
165 db eval BEGIN | |
166 speed_trial speed1-select4 100000 row $sql | |
167 db eval COMMIT | |
168 | |
169 # 100000 random SELECTs against a unique indexed column. | |
170 # | |
171 set sql {} | |
172 for {set i 1} {$i<=100000} {incr i} { | |
173 set id [expr {int(rand()*50000)+1}] | |
174 append sql "SELECT c FROM t1 WHERE a=$id;" | |
175 } | |
176 db eval BEGIN | |
177 speed_trial speed1-select5 100000 row $sql | |
178 db eval COMMIT | |
179 | |
180 # 50000 random SELECTs against an indexed column text column | |
181 # | |
182 set sql {} | |
183 db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000} { | |
184 append sql "SELECT c FROM t1 WHERE c='$c';" | |
185 } | |
186 db eval BEGIN | |
187 speed_trial speed1-select6 50000 row $sql | |
188 db eval COMMIT | |
189 | |
190 | |
191 # Vacuum | |
192 speed_trial speed1-vacuum 100000 row VACUUM | |
193 | |
194 # 5000 updates of ranges where the field being compared is indexed. | |
195 # | |
196 set sql {} | |
197 for {set i 0} {$i<5000} {incr i} { | |
198 set lwr [expr {$i*2}] | |
199 set upr [expr {($i+1)*2}] | |
200 append sql "UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr;" | |
201 } | |
202 db eval BEGIN | |
203 speed_trial speed1-update1 5000 stmt $sql | |
204 db eval COMMIT | |
205 | |
206 # 50000 single-row updates. An index is used to find the row quickly. | |
207 # | |
208 set sql {} | |
209 for {set i 0} {$i<50000} {incr i} { | |
210 set r [expr {int(rand()*500000)}] | |
211 append sql "UPDATE t1 SET b=$r WHERE a=$i;" | |
212 } | |
213 db eval BEGIN | |
214 speed_trial speed1-update2 50000 row $sql | |
215 db eval COMMIT | |
216 | |
217 # 1 big text update that touches every row in the table. | |
218 # | |
219 speed_trial speed1-update3 50000 row { | |
220 UPDATE t1 SET c=a; | |
221 } | |
222 | |
223 # Many individual text updates. Each row in the table is | |
224 # touched through an index. | |
225 # | |
226 set sql {} | |
227 for {set i 1} {$i<=50000} {incr i} { | |
228 set r [expr {int(rand()*500000)}] | |
229 append sql "UPDATE t1 SET c='[number_name $r]' WHERE a=$i;" | |
230 } | |
231 db eval BEGIN | |
232 speed_trial speed1-update4 50000 row $sql | |
233 db eval COMMIT | |
234 | |
235 # Delete all content in a table. | |
236 # | |
237 speed_trial speed1-delete1 50000 row {DELETE FROM t1} | |
238 | |
239 # Copy one table into another | |
240 # | |
241 speed_trial speed1-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2} | |
242 | |
243 # Delete all content in a table, one row at a time. | |
244 # | |
245 speed_trial speed1-delete2 50000 row {DELETE FROM t1 WHERE 1} | |
246 | |
247 # Refill the table yet again | |
248 # | |
249 speed_trial speed1-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2} | |
250 | |
251 # Drop the table and recreate it without its indices. | |
252 # | |
253 db eval BEGIN | |
254 speed_trial speed1-drop1 50000 row { | |
255 DROP TABLE t1; | |
256 CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT); | |
257 } | |
258 db eval COMMIT | |
259 | |
260 # Refill the table yet again. This copy should be faster because | |
261 # there are no indices to deal with. | |
262 # | |
263 speed_trial speed1-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2} | |
264 | |
265 # Select 20000 rows from the table at random. | |
266 # | |
267 speed_trial speed1-random1 50000 row { | |
268 SELECT rowid FROM t1 ORDER BY random() LIMIT 20000 | |
269 } | |
270 | |
271 # Delete 20000 random rows from the table. | |
272 # | |
273 speed_trial speed1-random-del1 20000 row { | |
274 DELETE FROM t1 WHERE rowid IN | |
275 (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000) | |
276 } | |
277 do_test speed1-1.1 { | |
278 db one {SELECT count(*) FROM t1} | |
279 } 30000 | |
280 | |
281 | |
282 # Delete 20000 more rows at random from the table. | |
283 # | |
284 speed_trial speed1-random-del2 20000 row { | |
285 DELETE FROM t1 WHERE rowid IN | |
286 (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000) | |
287 } | |
288 do_test speed1-1.2 { | |
289 db one {SELECT count(*) FROM t1} | |
290 } 10000 | |
291 speed_trial_summary speed1 | |
292 | |
293 db close | |
294 sqlite3_shutdown | |
295 eval sqlite3_config_lookaside $old_lookaside | |
296 sqlite3_initialize | |
297 autoinstall_test_functions | |
298 finish_test | |
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