Annotation of embedaddon/sqlite3/test/speed1p.test, revision 1.1.1.1
1.1 misho 1: # 2008 March 21
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: # This is a copy of speed1.test modified to user prepared statements.
15: #
16: # $Id: speed1p.test,v 1.7 2009/04/09 01:23:49 drh Exp $
17: #
18:
19: sqlite3_shutdown
20: #sqlite3_config_scratch 29000 1
21: set old_lookaside [sqlite3_config_lookaside 2048 300]
22: #sqlite3_config_pagecache 1024 11000
23: set testdir [file dirname $argv0]
24: source $testdir/tester.tcl
25: speed_trial_init speed1
26:
27: # Set a uniform random seed
28: expr srand(0)
29:
30: # The number_name procedure below converts its argment (an integer)
31: # into a string which is the English-language name for that number.
32: #
33: # Example:
34: #
35: # puts [number_name 123] -> "one hundred twenty three"
36: #
37: set ones {zero one two three four five six seven eight nine
38: ten eleven twelve thirteen fourteen fifteen sixteen seventeen
39: eighteen nineteen}
40: set tens {{} ten twenty thirty forty fifty sixty seventy eighty ninety}
41: proc number_name {n} {
42: if {$n>=1000} {
43: set txt "[number_name [expr {$n/1000}]] thousand"
44: set n [expr {$n%1000}]
45: } else {
46: set txt {}
47: }
48: if {$n>=100} {
49: append txt " [lindex $::ones [expr {$n/100}]] hundred"
50: set n [expr {$n%100}]
51: }
52: if {$n>=20} {
53: append txt " [lindex $::tens [expr {$n/10}]]"
54: set n [expr {$n%10}]
55: }
56: if {$n>0} {
57: append txt " [lindex $::ones $n]"
58: }
59: set txt [string trim $txt]
60: if {$txt==""} {set txt zero}
61: return $txt
62: }
63:
64: # Create a database schema.
65: #
66: do_test speed1p-1.0 {
67: execsql {
68: PRAGMA page_size=1024;
69: PRAGMA cache_size=500;
70: PRAGMA locking_mode=EXCLUSIVE;
71: CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
72: CREATE TABLE t2(a INTEGER, b INTEGER, c TEXT);
73: CREATE INDEX i2a ON t2(a);
74: CREATE INDEX i2b ON t2(b);
75: }
76: execsql {
77: SELECT name FROM sqlite_master ORDER BY 1;
78: }
79: } {i2a i2b t1 t2}
80:
81:
82: # 50000 INSERTs on an unindexed table
83: #
84: set list {}
85: for {set i 1} {$i<=50000} {incr i} {
86: set r [expr {int(rand()*500000)}]
87: set x [number_name $r]
88: lappend list $i $r $x
89: }
90: set script {
91: foreach {i r x} $::list {
92: db eval {INSERT INTO t1 VALUES($i,$r,$x)}
93: }
94: }
95: db eval BEGIN
96: speed_trial_tcl speed1p-insert1 50000 row $script
97: db eval COMMIT
98:
99: # 50000 INSERTs on an indexed table
100: #
101: set list {}
102: for {set i 1} {$i<=50000} {incr i} {
103: set r [expr {int(rand()*500000)}]
104: set x [number_name $r]
105: lappend list $i $r $x
106: }
107: set script {
108: foreach {i r x} $::list {
109: db eval {INSERT INTO t2 VALUES($i,$r,$x)}
110: }
111: }
112: db eval BEGIN
113: speed_trial_tcl speed1p-insert2 50000 row $script
114: db eval COMMIT
115:
116:
117:
118: # 50 SELECTs on an integer comparison. There is no index so
119: # a full table scan is required.
120: #
121: set list {}
122: for {set i 0} {$i<50} {incr i} {
123: set lwr [expr {$i*100}]
124: set upr [expr {($i+10)*100}]
125: lappend list $lwr $upr
126: }
127: set script {
128: foreach {lwr upr} $::list {
129: db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
130: }
131: }
132: db eval BEGIN
133: speed_trial_tcl speed1p-select1 [expr {50*50000}] row $script
134: db eval COMMIT
135:
136: # 50 SELECTs on an LIKE comparison. There is no index so a full
137: # table scan is required.
138: #
139: set list {}
140: for {set i 0} {$i<50} {incr i} {
141: lappend list "%[number_name $i]%"
142: }
143: set script {
144: foreach pattern $::list {
145: db eval {SELECT count(*), avg(b) FROM t1 WHERE c LIKE $pattern}
146: }
147: }
148: db eval BEGIN
149: speed_trial_tcl speed1p-select2 [expr {50*50000}] row $script
150: db eval COMMIT
151:
152: # Create indices
153: #
154: db eval BEGIN
155: speed_trial speed1p-createidx 150000 row {
156: CREATE INDEX i1a ON t1(a);
157: CREATE INDEX i1b ON t1(b);
158: CREATE INDEX i1c ON t1(c);
159: }
160: db eval COMMIT
161:
162: # 5000 SELECTs on an integer comparison where the integer is
163: # indexed.
164: #
165: set list {}
166: for {set i 0} {$i<5000} {incr i} {
167: set lwr [expr {$i*100}]
168: set upr [expr {($i+10)*100}]
169: lappend list $lwr $upr
170: }
171: set script {
172: foreach {lwr upr} $::list {
173: db eval {SELECT count(*), avg(b) FROM t1 WHERE b>=$lwr AND b<$upr}
174: }
175: }
176: db eval BEGIN
177: speed_trial_tcl speed1p-select3 5000 stmt $script
178: db eval COMMIT
179:
180: # 100000 random SELECTs against rowid.
181: #
182: set list {}
183: for {set i 1} {$i<=100000} {incr i} {
184: set id [expr {int(rand()*50000)+1}]
185: lappend list $id
186: }
187: set script {
188: foreach id $::list {
189: db eval {SELECT c FROM t1 WHERE rowid=$id}
190: }
191: }
192: db eval BEGIN
193: speed_trial_tcl speed1p-select4 100000 row $script
194: db eval COMMIT
195:
196: # 100000 random SELECTs against a unique indexed column.
197: #
198: set list {}
199: for {set i 1} {$i<=100000} {incr i} {
200: set id [expr {int(rand()*50000)+1}]
201: lappend list $id
202: }
203: set script {
204: foreach id $::list {
205: db eval {SELECT c FROM t1 WHERE a=$id}
206: }
207: }
208: db eval BEGIN
209: speed_trial_tcl speed1p-select5 100000 row $script
210: db eval COMMIT
211:
212: # 50000 random SELECTs against an indexed column text column
213: #
214: set list [db eval {SELECT c FROM t1 ORDER BY random() LIMIT 50000}]
215: set script {
216: foreach c $::list {
217: db eval {SELECT c FROM t1 WHERE c=$c}
218: }
219: }
220: db eval BEGIN
221: speed_trial_tcl speed1p-select6 50000 row $script
222: db eval COMMIT
223:
224:
225: # Vacuum
226: speed_trial speed1p-vacuum 100000 row VACUUM
227:
228: # 5000 updates of ranges where the field being compared is indexed.
229: #
230: set list {}
231: for {set i 0} {$i<5000} {incr i} {
232: set lwr [expr {$i*2}]
233: set upr [expr {($i+1)*2}]
234: lappend list $lwr $upr
235: }
236: set script {
237: foreach {lwr upr} $::list {
238: db eval {UPDATE t1 SET b=b*2 WHERE a>=$lwr AND a<$upr}
239: }
240: }
241: db eval BEGIN
242: speed_trial_tcl speed1p-update1 5000 stmt $script
243: db eval COMMIT
244:
245: # 50000 single-row updates. An index is used to find the row quickly.
246: #
247: set list {}
248: for {set i 0} {$i<50000} {incr i} {
249: set r [expr {int(rand()*500000)}]
250: lappend list $i $r
251: }
252: set script {
253: foreach {i r} $::list {
254: db eval {UPDATE t1 SET b=$r WHERE a=$i}
255: }
256: }
257: db eval BEGIN
258: speed_trial_tcl speed1p-update2 50000 row $script
259: db eval COMMIT
260:
261: # 1 big text update that touches every row in the table.
262: #
263: speed_trial speed1p-update3 50000 row {
264: UPDATE t1 SET c=a;
265: }
266:
267: # Many individual text updates. Each row in the table is
268: # touched through an index.
269: #
270: set list {}
271: for {set i 1} {$i<=50000} {incr i} {
272: set r [expr {int(rand()*500000)}]
273: lappend list $i [number_name $r]
274: }
275: set script {
276: foreach {i x} $::list {
277: db eval {UPDATE t1 SET c=$x WHERE a=$i}
278: }
279: }
280: db eval BEGIN
281: speed_trial_tcl speed1p-update4 50000 row $script
282: db eval COMMIT
283:
284: # Delete all content in a table.
285: #
286: speed_trial speed1p-delete1 50000 row {DELETE FROM t1}
287:
288: # Copy one table into another
289: #
290: speed_trial speed1p-copy1 50000 row {INSERT INTO t1 SELECT * FROM t2}
291:
292: # Delete all content in a table, one row at a time.
293: #
294: speed_trial speed1p-delete2 50000 row {DELETE FROM t1 WHERE 1}
295:
296: # Refill the table yet again
297: #
298: speed_trial speed1p-copy2 50000 row {INSERT INTO t1 SELECT * FROM t2}
299:
300: # Drop the table and recreate it without its indices.
301: #
302: db eval BEGIN
303: speed_trial speed1p-drop1 50000 row {
304: DROP TABLE t1;
305: CREATE TABLE t1(a INTEGER, b INTEGER, c TEXT);
306: }
307: db eval COMMIT
308:
309: # Refill the table yet again. This copy should be faster because
310: # there are no indices to deal with.
311: #
312: speed_trial speed1p-copy3 50000 row {INSERT INTO t1 SELECT * FROM t2}
313:
314: # Select 20000 rows from the table at random.
315: #
316: speed_trial speed1p-random1 50000 row {
317: SELECT rowid FROM t1 ORDER BY random() LIMIT 20000
318: }
319:
320: # Delete 20000 random rows from the table.
321: #
322: speed_trial speed1p-random-del1 20000 row {
323: DELETE FROM t1 WHERE rowid IN
324: (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
325: }
326: do_test speed1p-1.1 {
327: db one {SELECT count(*) FROM t1}
328: } 30000
329:
330: # Delete 20000 more rows at random from the table.
331: #
332: speed_trial speed1p-random-del2 20000 row {
333: DELETE FROM t1 WHERE rowid IN
334: (SELECT rowid FROM t1 ORDER BY random() LIMIT 20000)
335: }
336: do_test speed1p-1.2 {
337: db one {SELECT count(*) FROM t1}
338: } 10000
339: speed_trial_summary speed1
340:
341: db close
342: sqlite3_shutdown
343: eval sqlite3_config_lookaside $old_lookaside
344: sqlite3_initialize
345: autoinstall_test_functions
346: finish_test
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