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| 1 # 2008 June 18 | |
| 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 # | |
| 12 # This file contains tests of the memory allocation subsystem | |
| 13 # | |
| 14 # $Id: memsubsys1.test,v 1.17 2009/07/18 14:36:24 danielk1977 Exp $ | |
| 15 | |
| 16 set testdir [file dirname $argv0] | |
| 17 source $testdir/tester.tcl | |
| 18 sqlite3_reset_auto_extension | |
| 19 | |
| 20 # This procedure constructs a new database in test.db. It fills | |
| 21 # this database with many small records (enough to force multiple | |
| 22 # rebalance operations in the btree-layer and to require a large | |
| 23 # page cache), verifies correct results, then returns. | |
| 24 # | |
| 25 proc build_test_db {testname pragmas} { | |
| 26 catch {db close} | |
| 27 file delete -force test.db test.db-journal | |
| 28 sqlite3 db test.db | |
| 29 sqlite3_db_config_lookaside db 0 0 0 | |
| 30 db eval $pragmas | |
| 31 db eval { | |
| 32 CREATE TABLE t1(x, y); | |
| 33 CREATE TABLE t2(a, b); | |
| 34 CREATE INDEX i1 ON t1(x,y); | |
| 35 INSERT INTO t1 VALUES(1, 100); | |
| 36 INSERT INTO t1 VALUES(2, 200); | |
| 37 } | |
| 38 for {set i 2} {$i<5000} {incr i $i} { | |
| 39 db eval {INSERT INTO t2 SELECT * FROM t1} | |
| 40 db eval {INSERT INTO t1 SELECT a+$i, a+b*100 FROM t2} | |
| 41 db eval {DELETE FROM t2} | |
| 42 } | |
| 43 do_test $testname.1 { | |
| 44 db eval {SELECT count(*) FROM t1} | |
| 45 } 8192 | |
| 46 integrity_check $testname.2 | |
| 47 } | |
| 48 | |
| 49 # Reset all of the highwater marks. | |
| 50 # | |
| 51 proc reset_highwater_marks {} { | |
| 52 sqlite3_status SQLITE_STATUS_MEMORY_USED 1 | |
| 53 sqlite3_status SQLITE_STATUS_MALLOC_SIZE 1 | |
| 54 sqlite3_status SQLITE_STATUS_PAGECACHE_USED 1 | |
| 55 sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 1 | |
| 56 sqlite3_status SQLITE_STATUS_PAGECACHE_SIZE 1 | |
| 57 sqlite3_status SQLITE_STATUS_SCRATCH_USED 1 | |
| 58 sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 1 | |
| 59 sqlite3_status SQLITE_STATUS_SCRATCH_SIZE 1 | |
| 60 sqlite3_status SQLITE_STATUS_PARSER_STACK 1 | |
| 61 } | |
| 62 | |
| 63 set xtra_size 256 | |
| 64 | |
| 65 # Test 1: Both PAGECACHE and SCRATCH are shut down. | |
| 66 # | |
| 67 db close | |
| 68 sqlite3_shutdown | |
| 69 sqlite3_config_lookaside 0 0 | |
| 70 sqlite3_initialize | |
| 71 reset_highwater_marks | |
| 72 build_test_db memsubsys1-1 {PRAGMA page_size=1024} | |
| 73 do_test memsubsys1-1.3 { | |
| 74 set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] | |
| 75 } 0 | |
| 76 do_test memsubsys1-1.4 { | |
| 77 set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] | |
| 78 } 0 | |
| 79 set max_pagecache [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2] | |
| 80 #show_memstats | |
| 81 | |
| 82 # Test 2: Activate PAGECACHE with 20 pages | |
| 83 # | |
| 84 db close | |
| 85 sqlite3_shutdown | |
| 86 sqlite3_config_pagecache [expr 1024+$xtra_size] 20 | |
| 87 sqlite3_initialize | |
| 88 reset_highwater_marks | |
| 89 build_test_db memsubsys1-2 {PRAGMA page_size=1024} | |
| 90 #show_memstats | |
| 91 do_test memsubsys1-2.3 { | |
| 92 set pg_ovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2] | |
| 93 set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] | |
| 94 expr { | |
| 95 ($pg_used*1024 + $pg_ovfl) < $max_pagecache && | |
| 96 ($pg_used*(1024+$xtra_size) + $pg_ovfl) >= $max_pagecache | |
| 97 } | |
| 98 } 1 | |
| 99 do_test memsubsys1-2.4 { | |
| 100 set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] | |
| 101 } 19 | |
| 102 do_test memsubsys1-2.5 { | |
| 103 set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] | |
| 104 } 0 | |
| 105 | |
| 106 # Test 3: Activate PAGECACHE with 20 pages but use the wrong page size | |
| 107 # so that PAGECACHE is not used. | |
| 108 # | |
| 109 db close | |
| 110 sqlite3_shutdown | |
| 111 sqlite3_config_pagecache [expr 512+$xtra_size] 20 | |
| 112 sqlite3_initialize | |
| 113 reset_highwater_marks | |
| 114 build_test_db memsubsys1-3.1 {PRAGMA page_size=1024} | |
| 115 #show_memstats | |
| 116 do_test memsubsys1-3.1.3 { | |
| 117 set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] | |
| 118 } 0 | |
| 119 do_test memsubsys1-3.1.4 { | |
| 120 set overflow [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2] | |
| 121 } $max_pagecache | |
| 122 do_test memsubsys1-3.1.5 { | |
| 123 set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] | |
| 124 } 0 | |
| 125 db close | |
| 126 sqlite3_shutdown | |
| 127 sqlite3_config_pagecache [expr 2048+$xtra_size] 20 | |
| 128 sqlite3_initialize | |
| 129 reset_highwater_marks | |
| 130 build_test_db memsubsys1-3.2 {PRAGMA page_size=2048} | |
| 131 #show_memstats | |
| 132 do_test memsubsys1-3.2.3 { | |
| 133 db eval {PRAGMA page_size} | |
| 134 } 2048 | |
| 135 do_test memsubsys1-3.2.4 { | |
| 136 set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] | |
| 137 } 19 | |
| 138 do_test memsubsys1-3.2.5 { | |
| 139 set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] | |
| 140 } 0 | |
| 141 | |
| 142 # Test 4: Activate both PAGECACHE and SCRATCH. | |
| 143 # | |
| 144 db close | |
| 145 sqlite3_shutdown | |
| 146 sqlite3_config_pagecache [expr 1024+$xtra_size] 50 | |
| 147 sqlite3_config_scratch 6000 2 | |
| 148 sqlite3_initialize | |
| 149 reset_highwater_marks | |
| 150 build_test_db memsubsys1-4 {PRAGMA page_size=1024} | |
| 151 #show_memstats | |
| 152 do_test memsubsys1-4.3 { | |
| 153 set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] | |
| 154 } 49 | |
| 155 do_test memsubsys1-4.4 { | |
| 156 set pg_ovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2] | |
| 157 set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] | |
| 158 expr { | |
| 159 ($pg_used*1024 + $pg_ovfl) < $max_pagecache && | |
| 160 ($pg_used*(1024+$xtra_size) + $pg_ovfl) >= $max_pagecache | |
| 161 } | |
| 162 } 1 | |
| 163 do_test memsubsys1-4.5 { | |
| 164 set maxreq [lindex [sqlite3_status SQLITE_STATUS_MALLOC_SIZE 0] 2] | |
| 165 expr {$maxreq<7000} | |
| 166 } 1 | |
| 167 do_test memsubsys1-4.6 { | |
| 168 set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] | |
| 169 } 1 | |
| 170 | |
| 171 # Test 5: Activate both PAGECACHE and SCRATCH. But make the page size | |
| 172 # such that the SCRATCH allocations are too small. | |
| 173 # | |
| 174 db close | |
| 175 sqlite3_shutdown | |
| 176 sqlite3_config_pagecache [expr 4096+$xtra_size] 24 | |
| 177 sqlite3_config_scratch 6000 2 | |
| 178 sqlite3_initialize | |
| 179 reset_highwater_marks | |
| 180 build_test_db memsubsys1-5 {PRAGMA page_size=4096} | |
| 181 #show_memstats | |
| 182 do_test memsubsys1-5.3 { | |
| 183 set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] | |
| 184 } 23 | |
| 185 do_test memsubsys1-5.4 { | |
| 186 set maxreq [lindex [sqlite3_status SQLITE_STATUS_MALLOC_SIZE 0] 2] | |
| 187 expr {$maxreq>4096} | |
| 188 } 1 | |
| 189 do_test memsubsys1-5.5 { | |
| 190 set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] | |
| 191 } 0 | |
| 192 do_test memsubsys1-5.6 { | |
| 193 set s_ovfl [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 0] 2] | |
| 194 expr {$s_ovfl>6000} | |
| 195 } 1 | |
| 196 | |
| 197 # Test 6: Activate both PAGECACHE and SCRATCH with a 4k page size. | |
| 198 # Make it so that SCRATCH is large enough | |
| 199 # | |
| 200 db close | |
| 201 sqlite3_shutdown | |
| 202 sqlite3_config_pagecache [expr 4096+$xtra_size] 24 | |
| 203 sqlite3_config_scratch 25300 1 | |
| 204 sqlite3_initialize | |
| 205 reset_highwater_marks | |
| 206 build_test_db memsubsys1-6 {PRAGMA page_size=4096} | |
| 207 #show_memstats | |
| 208 do_test memsubsys1-6.3 { | |
| 209 set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] | |
| 210 } 23 | |
| 211 do_test memsubsys1-6.4 { | |
| 212 set maxreq [lindex [sqlite3_status SQLITE_STATUS_MALLOC_SIZE 0] 2] | |
| 213 expr {$maxreq>4096 && $maxreq<=(4096+$xtra_size)} | |
| 214 } 1 | |
| 215 do_test memsubsys1-6.5 { | |
| 216 set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] | |
| 217 } 1 | |
| 218 do_test memsubsys1-6.6 { | |
| 219 set s_ovfl [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 0] 2] | |
| 220 } 0 | |
| 221 | |
| 222 # Test 7: Activate both PAGECACHE and SCRATCH with a 4k page size. | |
| 223 # Set cache_size small so that no PAGECACHE overflow occurs. Verify | |
| 224 # that maximum allocation size is small. | |
| 225 # | |
| 226 db close | |
| 227 sqlite3_shutdown | |
| 228 sqlite3_config_pagecache [expr 4096+$xtra_size] 24 | |
| 229 sqlite3_config_scratch 25300 1 | |
| 230 sqlite3_initialize | |
| 231 reset_highwater_marks | |
| 232 build_test_db memsubsys1-7 { | |
| 233 PRAGMA page_size=4096; | |
| 234 PRAGMA cache_size=10; | |
| 235 PRAGMA temp_store=memory; | |
| 236 } | |
| 237 #show_memstats | |
| 238 do_test memsubsys1-7.3 { | |
| 239 set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] | |
| 240 expr {$pg_used<24} | |
| 241 } 1 | |
| 242 do_test memsubsys1-7.4 { | |
| 243 set pg_ovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2] | |
| 244 } 0 | |
| 245 do_test memsubsys1-7.5 { | |
| 246 set maxreq [lindex [sqlite3_status SQLITE_STATUS_MALLOC_SIZE 0] 2] | |
| 247 expr {$maxreq<4100} | |
| 248 } 1 | |
| 249 do_test memsubsys1-7.6 { | |
| 250 set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] | |
| 251 } 1 | |
| 252 do_test memsubsys1-7.7 { | |
| 253 set s_ovfl [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 0] 2] | |
| 254 } 0 | |
| 255 | |
| 256 # Test 8: Disable PAGECACHE. Make available SCRATCH zero. Verify that | |
| 257 # the SCRATCH overflow logic works. | |
| 258 # | |
| 259 db close | |
| 260 sqlite3_shutdown | |
| 261 sqlite3_config_pagecache 0 0 | |
| 262 sqlite3_config_scratch 25000 0 | |
| 263 sqlite3_initialize | |
| 264 reset_highwater_marks | |
| 265 do_test memsubsys1-8.1 { | |
| 266 set pg_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] | |
| 267 } 0 | |
| 268 do_test memsubsys1-8.2 { | |
| 269 set s_ovfl [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 0] 2] | |
| 270 } 0 | |
| 271 do_test memsubsys1-8.3 { | |
| 272 sqlite3 db :memory: | |
| 273 db eval { | |
| 274 CREATE TABLE t1(x); | |
| 275 INSERT INTO t1 VALUES(zeroblob(400)); | |
| 276 INSERT INTO t1 VALUES(zeroblob(400)); | |
| 277 INSERT INTO t1 SELECT * FROM t1; | |
| 278 INSERT INTO t1 SELECT * FROM t1; | |
| 279 INSERT INTO t1 SELECT * FROM t1; | |
| 280 } | |
| 281 expr {[lindex [sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 0] 2]>0} | |
| 282 } 1 | |
| 283 db close | |
| 284 sqlite3_shutdown | |
| 285 sqlite3_config_memstatus 0 | |
| 286 sqlite3_initialize | |
| 287 do_test memsubsys1-8.4 { | |
| 288 sqlite3 db :memory: | |
| 289 db eval { | |
| 290 CREATE TABLE t1(x); | |
| 291 INSERT INTO t1 VALUES(zeroblob(400)); | |
| 292 INSERT INTO t1 VALUES(zeroblob(400)); | |
| 293 INSERT INTO t1 SELECT * FROM t1; | |
| 294 INSERT INTO t1 SELECT * FROM t1; | |
| 295 INSERT INTO t1 SELECT * FROM t1; | |
| 296 SELECT rowid FROM t1; | |
| 297 } | |
| 298 } {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} | |
| 299 | |
| 300 | |
| 301 db close | |
| 302 sqlite3_shutdown | |
| 303 sqlite3_config_memstatus 1 | |
| 304 sqlite3_config_pagecache 0 0 | |
| 305 sqlite3_config_scratch 0 0 | |
| 306 sqlite3_config_lookaside 100 500 | |
| 307 sqlite3_initialize | |
| 308 autoinstall_test_functions | |
| 309 finish_test | |
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