Annotation of embedaddon/sqlite3/test/speed1.test, revision 1.1.1.1
1.1 misho 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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