34e258c942
database connection is already active. In particular, reducing mmap_size will immediately free up process address space. FossilOrigin-Name: 761177927cb51e4f5e66061ca39cf37edbe8346b
99 lines
2.3 KiB
Plaintext
99 lines
2.3 KiB
Plaintext
# 2013-05-23
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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ifcapable !mmap {
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finish_test
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return
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}
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source $testdir/lock_common.tcl
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set testprefix mmap3
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do_test mmap3-1.0 {
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load_static_extension db wholenumber
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db eval {
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PRAGMA mmap_size=100000;
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CREATE TABLE t1(x, y);
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CREATE VIRTUAL TABLE nums USING wholenumber;
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INSERT INTO t1 SELECT value, randomblob(value) FROM nums
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WHERE value BETWEEN 1 and 1000;
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SELECT sum(x), sum(length(y)) from t1;
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PRAGMA mmap_size;
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}
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} {100000 500500 500500 100000}
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do_test mmap3-1.2 {
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db eval {
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PRAGMA mmap_size=50000;
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CREATE TABLE t2(a,b);
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SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
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PRAGMA quick_check;
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PRAGMA mmap_size;
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}
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} {50000 nums t1 t2 ok 50000}
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do_test mmap3-1.3 {
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db eval {
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PRAGMA mmap_size=250000;
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DROP TABLE t2;
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SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
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PRAGMA quick_check;
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PRAGMA mmap_size;
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}
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} {250000 nums t1 ok 250000}
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do_test mmap3-1.4 {
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db eval {SELECT x FROM t1 WHERE +x BETWEEN 10 AND 15} {
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db eval {PRAGMA mmap_size=150000}
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}
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db eval {
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PRAGMA quick_check;
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PRAGMA mmap_size;
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}
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} {ok 250000}
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do_test mmap3-1.5 {
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db eval {SELECT x FROM t1 WHERE +x BETWEEN 10 AND 15} {
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db eval {PRAGMA mmap_size=0}
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}
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db eval {
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PRAGMA quick_check;
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PRAGMA mmap_size;
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}
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} {ok 250000}
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do_test mmap3-1.6 {
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db eval {SELECT x FROM t1 WHERE +x BETWEEN 10 AND 15} {
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set x [db one {PRAGMA mmap_size}]
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}
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set x [concat $x [db eval {
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PRAGMA quick_check;
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PRAGMA mmap_size;
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}]]
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} {250000 ok 250000}
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do_test mmap3-1.7 {
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db eval {
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PRAGMA mmap_size(0);
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CREATE TABLE t3(a,b,c);
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SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1;
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PRAGMA quick_check;
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PRAGMA mmap_size;
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}
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} {0 nums t1 t3 ok 0}
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do_test mmap3-1.8 {
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db eval {SELECT x FROM t1 WHERE +x BETWEEN 10 AND 15} {
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db eval {PRAGMA mmap_size=75000}
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}
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db eval {
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PRAGMA quick_check;
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PRAGMA mmap_size;
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}
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} {ok 75000}
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finish_test
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