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Add simple tests and fixes for sqlite3_soft_heap_limit() (CVS 2837)

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FossilOrigin-Name: c2c5285442f4558dfca61b52f31b5a9cbefaed10
This commit is contained in:
danielk1977
2005-12-20 09:19:37 +00:00
parent 6ed65f5a3f
commit 5591df558a
9 changed files with 192 additions and 52 deletions
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test/malloc5.test
+70 -2
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@@ -9,7 +9,7 @@
#
#***********************************************************************
#
# $Id: malloc5.test,v 1.1 2005/12/19 14:18:12 danielk1977 Exp $
# $Id: malloc5.test,v 1.2 2005/12/20 09:19:38 danielk1977 Exp $
#---------------------------------------------------------------------------
# NOTES ON EXPECTED BEHAVIOUR
@@ -95,7 +95,6 @@ do_test malloc5-1.9 {
}
} {}
do_test malloc5-2.1 {
# Put some data in tables abc and def. Both tables are still wholly
# contained within their root pages.
@@ -116,13 +115,82 @@ do_test malloc5-2.2 {
BEGIN;
SELECT * FROM def;
}
set data [list]
db eval {SELECT * FROM abc} {
incr nRelease [db release_memory]
lappend data $a $b $c
}
execsql {
COMMIT;
}
list $nRelease $data
} [list $pgalloc [list 1 2 3 4 5 6]]
do_test malloc5-3.1 {
# Simple test to show that if two pagers are opened from within this
# thread, memory is freed from both when sqlite3_release_memory() is
# called.
execsql {
BEGIN;
SELECT * FROM abc;
}
execsql {
SELECT * FROM sqlite_master;
BEGIN;
SELECT * FROM def;
} db2
db release_memory
} [expr $::pgalloc * 2]
do_test malloc5-3.2 {
concat \
[execsql {SELECT * FROM abc; COMMIT}] \
[execsql {SELECT * FROM def; COMMIT} db2]
} {1 2 3 4 5 6 7 8 9 10 11 12}
db2 close
sqlite_malloc_outstanding -clearmaxbytes
# The following two test cases each execute a transaction in which
# 10000 rows are inserted into table abc. The first test case is used
# to ensure that more than 1MB of dynamic memory is used to perform
# the transaction.
#
# The second test case sets the "soft-heap-limit" to 100,000 bytes (0.1 MB)
# and tests to see that this limit is not exceeded at any point during
# transaction execution.
#
do_test malloc5-4.1 {
execsql {BEGIN;}
execsql {DELETE FROM abc;}
for {set i 0} {$i < 10000} {incr i} {
execsql "INSERT INTO abc VALUES($i, $i, '[string repeat X 100]');"
}
execsql {COMMIT;}
set ::nMaxBytes [sqlite_malloc_outstanding -maxbytes]
expr $::nMaxBytes > 1000000
} {1}
do_test malloc5-4.2 {
db release_memory
sqlite_malloc_outstanding -clearmaxbytes
db soft_heap_limit 100000
execsql {BEGIN;}
for {set i 0} {$i < 10000} {incr i} {
execsql "INSERT INTO abc VALUES($i, $i, '[string repeat X 100]');"
}
execsql {COMMIT;}
set ::nMaxBytes [sqlite_malloc_outstanding -maxbytes]
expr $::nMaxBytes <= 100000
} {1}
do_test malloc5-4.3 {
# Check that the content of table abc is at least roughly as expected.
execsql {
SELECT count(*), sum(a), sum(b) FROM abc;
}
} [list 20000 [expr int(20000.0 * 4999.5)] [expr int(20000.0 * 4999.5)]]
# Unset the soft-heap-limit value.
db soft_heap_limit -1
finish_test