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Overview
| Comment: | Add a case to speedtest1.c that demonstrates the need to factor OP_Column operators out of inner loops. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
69a17336fdf4ae891e815914be8942f7 |
| User & Date: | drh 2013-12-21 00:04:37 |
Context
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2013-12-21
| ||
| 15:46 | Fix the ".echo on" dot-command of the shell so that it echos comments in addition to SQL statements and dot-commands. Add the --explain option to speedtest1 so that the output can be piped into the command-line shell to show nicely-formated VDBE code for the entire test. (check-in: 96397263 user: drh tags: trunk) | |
| 00:04 | Add a case to speedtest1.c that demonstrates the need to factor OP_Column operators out of inner loops. (check-in: 69a17336 user: drh tags: trunk) | |
|
2013-12-20
| ||
| 18:57 | Fix compiler harmless warnings in tclsqlite.c that appeared with GCC 4.8.x. (check-in: d93ae683 user: drh tags: trunk) | |
Changes
Changes to test/speedtest1.c.
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static void randomFunc(
sqlite3_context *context,
int NotUsed,
sqlite3_value **NotUsed2
){
sqlite3_result_int64(context, (sqlite3_int64)speedtest1_random());
}
/*
** The main and default testset
*/
void testset_main(void){
int i; /* Loop counter */
int n; /* iteration count */
................................................................................
sqlite3_bind_int(g.pStmt, 1, x1);
sqlite3_bind_int(g.pStmt, 2, x2);
speedtest1_run();
}
speedtest1_exec("COMMIT");
speedtest1_end_test();
speedtest1_begin_test(980, "PRAGMA integrity_check");
speedtest1_exec("PRAGMA integrity_check");
speedtest1_end_test();
speedtest1_begin_test(990, "ANALYZE");
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static void randomFunc(
sqlite3_context *context,
int NotUsed,
sqlite3_value **NotUsed2
){
sqlite3_result_int64(context, (sqlite3_int64)speedtest1_random());
}
/* Estimate the square root of an integer */
static int est_square_root(int x){
int y0 = x/2;
int y1;
int n;
for(n=0; y0>0 && n<10; n++){
y1 = (y0 + x/y0)/2;
if( y1==y0 ) break;
y0 = y1;
}
return y0;
}
/*
** The main and default testset
*/
void testset_main(void){
int i; /* Loop counter */
int n; /* iteration count */
................................................................................
sqlite3_bind_int(g.pStmt, 1, x1);
sqlite3_bind_int(g.pStmt, 2, x2);
speedtest1_run();
}
speedtest1_exec("COMMIT");
speedtest1_end_test();
speedtest1_begin_test(320, "subquery in result set", n);
speedtest1_prepare(
"SELECT sum(a), max(c),\n"
" avg((SELECT a FROM t2 WHERE 5+t2.b=t1.b) AND rowid<?1), max(c)\n"
" FROM t1 WHERE rowid<?1;"
);
sqlite3_bind_int(g.pStmt, 1, est_square_root(g.szTest)*50);
speedtest1_run();
speedtest1_end_test();
speedtest1_begin_test(980, "PRAGMA integrity_check");
speedtest1_exec("PRAGMA integrity_check");
speedtest1_end_test();
speedtest1_begin_test(990, "ANALYZE");
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