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Diffstat (limited to 'test/memsubsys1.test')
| -rw-r--r-- | test/memsubsys1.test | 309 |
1 files changed, 309 insertions, 0 deletions
diff --git a/test/memsubsys1.test b/test/memsubsys1.test new file mode 100644 index 0000000..7eecf08 --- /dev/null +++ b/test/memsubsys1.test @@ -0,0 +1,309 @@ +# 2008 June 18 +# +# The author disclaims copyright to this source code. In place of +# a legal notice, here is a blessing: +# +# May you do good and not evil. +# May you find forgiveness for yourself and forgive others. +# May you share freely, never taking more than you give. +# +#*********************************************************************** +# +# This file contains tests of the memory allocation subsystem +# + +set testdir [file dirname $argv0] +source $testdir/tester.tcl +sqlite3_reset_auto_extension + +# This test assumes that no page-cache or scratch buffers are installed +# by default when a new database connection is opened. As a result, it +# will not work with the "memsubsys1" permutation. +# +if {[permutation] == "memsubsys1"} { + finish_test + return +} + +# This procedure constructs a new database in test.db. It fills +# this database with many small records (enough to force multiple +# rebalance operations in the btree-layer and to require a large +# page cache), verifies correct results, then returns. +# +proc build_test_db {testname pragmas} { + catch {db close} + forcedelete test.db test.db-journal + sqlite3 db test.db + sqlite3_db_config_lookaside db 0 0 0 + db eval $pragmas + db eval { + CREATE TABLE t1(x, y); + CREATE TABLE t2(a, b); + CREATE INDEX i1 ON t1(x,y); + INSERT INTO t1 VALUES(1, 100); + INSERT INTO t1 VALUES(2, 200); + } + for {set i 2} {$i<5000} {incr i $i} { + db eval {INSERT INTO t2 SELECT * FROM t1} + db eval {INSERT INTO t1 SELECT a+$i, a+b*100 FROM t2} + db eval {DELETE FROM t2} + } + do_test $testname.1 { + db eval {SELECT count(*) FROM t1} + } 8192 + integrity_check $testname.2 +} + +# Reset all of the highwater marks. +# +proc reset_highwater_marks {} { + sqlite3_status SQLITE_STATUS_MEMORY_USED 1 + sqlite3_status SQLITE_STATUS_MALLOC_SIZE 1 + sqlite3_status SQLITE_STATUS_PAGECACHE_USED 1 + sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 1 + sqlite3_status SQLITE_STATUS_PAGECACHE_SIZE 1 + sqlite3_status SQLITE_STATUS_SCRATCH_USED 1 + sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 1 + sqlite3_status SQLITE_STATUS_SCRATCH_SIZE 1 + sqlite3_status SQLITE_STATUS_PARSER_STACK 1 +} + +set xtra_size 256 + +# Test 1: Both PAGECACHE and SCRATCH are shut down. +# +db close +sqlite3_shutdown +sqlite3_config_lookaside 0 0 +sqlite3_initialize +reset_highwater_marks +build_test_db memsubsys1-1 {PRAGMA page_size=1024} +do_test memsubsys1-1.3 { + set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] +} 0 +do_test memsubsys1-1.4 { + set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] +} 0 +set max_pagecache [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2] +#show_memstats + +# Test 2: Activate PAGECACHE with 20 pages +# +db close +sqlite3_shutdown +sqlite3_config_pagecache [expr 1024+$xtra_size] 20 +sqlite3_initialize +reset_highwater_marks +build_test_db memsubsys1-2 {PRAGMA page_size=1024} +#show_memstats +set MEMORY_MANAGEMENT $sqlite_options(memorymanage) +do_test memsubsys1-2.3 { + set pg_ovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2] +} [expr ($TEMP_STORE>1 || $MEMORY_MANAGEMENT==0)*1024] +do_test memsubsys1-2.4 { + set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] +} 20 +do_test memsubsys1-2.5 { + set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] +} 0 + +# Test 3: Activate PAGECACHE with 20 pages but use the wrong page size +# so that PAGECACHE is not used. +# +db close +sqlite3_shutdown +sqlite3_config_pagecache [expr 512+$xtra_size] 20 +sqlite3_initialize +reset_highwater_marks +build_test_db memsubsys1-3.1 {PRAGMA page_size=1024} +#show_memstats +do_test memsubsys1-3.1.3 { + set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] +} 0 +do_test memsubsys1-3.1.4 { + set overflow [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2] +} $max_pagecache +do_test memsubsys1-3.1.5 { + set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] +} 0 +db close +sqlite3_shutdown +sqlite3_config_pagecache [expr 2048+$xtra_size] 20 +sqlite3_initialize +reset_highwater_marks +build_test_db memsubsys1-3.2 {PRAGMA page_size=2048} +#show_memstats +do_test memsubsys1-3.2.3 { + db eval {PRAGMA page_size} +} 2048 +do_test memsubsys1-3.2.4 { + set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] +} 20 +do_test memsubsys1-3.2.5 { + set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] +} 0 + +# Test 4: Activate both PAGECACHE and SCRATCH. +# +db close +sqlite3_shutdown +sqlite3_config_pagecache [expr 1024+$xtra_size] 50 +sqlite3_config_scratch 6000 2 +sqlite3_initialize +reset_highwater_marks +build_test_db memsubsys1-4 {PRAGMA page_size=1024} +#show_memstats +do_test memsubsys1-4.3 { + set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] + expr {$pg_used>=45 && $pg_used<=50} +} 1 +do_test memsubsys1-4.4 { + set pg_ovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2] +} 0 +do_test memsubsys1-4.5 { + set maxreq [lindex [sqlite3_status SQLITE_STATUS_MALLOC_SIZE 0] 2] + expr {$maxreq<7000} +} 1 +do_test memsubsys1-4.6 { + set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] +} 1 + +# Test 5: Activate both PAGECACHE and SCRATCH. But make the page size +# such that the SCRATCH allocations are too small. +# +db close +sqlite3_shutdown +sqlite3_config_pagecache [expr 4096+$xtra_size] 24 +sqlite3_config_scratch 6000 2 +sqlite3_initialize +reset_highwater_marks +build_test_db memsubsys1-5 {PRAGMA page_size=4096} +#show_memstats +do_test memsubsys1-5.3 { + set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] +} 24 +do_test memsubsys1-5.4 { + set maxreq [lindex [sqlite3_status SQLITE_STATUS_MALLOC_SIZE 0] 2] + expr {$maxreq>4096} +} 1 +do_test memsubsys1-5.5 { + set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] +} 0 +do_test memsubsys1-5.6 { + set s_ovfl [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 0] 2] + expr {$s_ovfl>6000} +} 1 + +# Test 6: Activate both PAGECACHE and SCRATCH with a 4k page size. +# Make it so that SCRATCH is large enough +# +db close +sqlite3_shutdown +sqlite3_config_pagecache [expr 4096+$xtra_size] 24 +sqlite3_config_scratch 25300 1 +sqlite3_initialize +reset_highwater_marks +build_test_db memsubsys1-6 {PRAGMA page_size=4096} +#show_memstats +do_test memsubsys1-6.3 { + set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] +} 24 +#do_test memsubsys1-6.4 { +# set maxreq [lindex [sqlite3_status SQLITE_STATUS_MALLOC_SIZE 0] 2] +# expr {$maxreq>4096 && $maxreq<=(4096+$xtra_size)} +#} 1 +do_test memsubsys1-6.5 { + set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] +} 1 +do_test memsubsys1-6.6 { + set s_ovfl [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 0] 2] +} 0 + +# Test 7: Activate both PAGECACHE and SCRATCH with a 4k page size. +# Set cache_size small so that no PAGECACHE overflow occurs. Verify +# that maximum allocation size is small. +# +db close +sqlite3_shutdown +sqlite3_config_pagecache [expr 4096+$xtra_size] 24 +sqlite3_config_scratch 25300 1 +sqlite3_initialize +reset_highwater_marks +build_test_db memsubsys1-7 { + PRAGMA page_size=4096; + PRAGMA cache_size=10; + PRAGMA temp_store=memory; +} +#show_memstats +do_test memsubsys1-7.3 { + set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2] + expr {$pg_used<24} +} 1 +do_test memsubsys1-7.4 { + set pg_ovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2] +} 0 +do_test memsubsys1-7.5 { + set maxreq [lindex [sqlite3_status SQLITE_STATUS_MALLOC_SIZE 0] 2] + expr {$maxreq<4100} +} 1 +do_test memsubsys1-7.6 { + set s_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] +} 1 +do_test memsubsys1-7.7 { + set s_ovfl [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 0] 2] +} 0 + +# Test 8: Disable PAGECACHE. Make available SCRATCH zero. Verify that +# the SCRATCH overflow logic works. +# +db close +sqlite3_shutdown +sqlite3_config_pagecache 0 0 +sqlite3_config_scratch 25000 0 +sqlite3_initialize +reset_highwater_marks +do_test memsubsys1-8.1 { + set pg_used [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_USED 0] 2] +} 0 +do_test memsubsys1-8.2 { + set s_ovfl [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 0] 2] +} 0 +do_test memsubsys1-8.3 { + sqlite3 db :memory: + db eval { + CREATE TABLE t1(x); + INSERT INTO t1 VALUES(zeroblob(400)); + INSERT INTO t1 VALUES(zeroblob(400)); + INSERT INTO t1 SELECT * FROM t1; + INSERT INTO t1 SELECT * FROM t1; + INSERT INTO t1 SELECT * FROM t1; + } + expr {[lindex [sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 0] 2]>0} +} 1 +db close +sqlite3_shutdown +sqlite3_config_memstatus 0 +sqlite3_initialize +do_test memsubsys1-8.4 { + sqlite3 db :memory: + db eval { + CREATE TABLE t1(x); + INSERT INTO t1 VALUES(zeroblob(400)); + INSERT INTO t1 VALUES(zeroblob(400)); + INSERT INTO t1 SELECT * FROM t1; + INSERT INTO t1 SELECT * FROM t1; + INSERT INTO t1 SELECT * FROM t1; + SELECT rowid FROM t1; + } +} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16} + + +db close +sqlite3_shutdown +sqlite3_config_memstatus 1 +sqlite3_config_pagecache 0 0 +sqlite3_config_scratch 0 0 +sqlite3_config_lookaside 100 500 +sqlite3_initialize +autoinstall_test_functions +finish_test |