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libsql/libsql-sqlite3/ext/session/session_speed_test.c
2023-10-16 13:58:16 +02:00

359 lines
10 KiB
C

/*
** 2017 January 31
**
** 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 the source code for a standalone program used to
** test the performance of the sessions module. Compile and run:
**
** ./session_speed_test -help
**
** for details.
*/
#include "sqlite3.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stddef.h>
#include <unistd.h>
/*************************************************************************
** Start of generic command line parser.
*/
#define CMDLINE_BARE 0
#define CMDLINE_INTEGER 1
#define CMDLINE_STRING 2
#define CMDLINE_BOOLEAN 3
typedef struct CmdLineOption CmdLineOption;
struct CmdLineOption {
const char *zText; /* Name of command line option */
const char *zHelp; /* Help text for option */
int eType; /* One of the CMDLINE_* values */
int iOff; /* Offset of output variable */
};
#define CMDLINE_INT32(x,y,z) {x, y, CMDLINE_INTEGER, z}
#define CMDLINE_BOOL(x,y,z) {x, y, CMDLINE_BOOLEAN, z}
#define CMDLINE_TEXT(x,y,z) {x, y, CMDLINE_STRING, z}
#define CMDLINE_NONE(x,y,z) {x, y, CMDLINE_BARE, z}
static void option_requires_argument_error(CmdLineOption *pOpt){
fprintf(stderr, "Option requires a%s argument: %s\n",
pOpt->eType==CMDLINE_INTEGER ? "n integer" :
pOpt->eType==CMDLINE_STRING ? " string" : " boolean",
pOpt->zText
);
exit(1);
}
static void ambiguous_option_error(const char *zArg){
fprintf(stderr, "Option is ambiguous: %s\n", zArg);
exit(1);
}
static void unknown_option_error(
const char *zArg,
CmdLineOption *aOpt,
const char *zHelp
){
int i;
fprintf(stderr, "Unknown option: %s\n", zArg);
fprintf(stderr, "\nOptions are:\n");
fprintf(stderr, " % -30sEcho command line options\n", "-cmdline:verbose");
for(i=0; aOpt[i].zText; i++){
int eType = aOpt[i].eType;
char *zOpt = sqlite3_mprintf("%s %s", aOpt[i].zText,
eType==CMDLINE_BARE ? "" :
eType==CMDLINE_INTEGER ? "N" :
eType==CMDLINE_BOOLEAN ? "BOOLEAN" : "TEXT"
);
fprintf(stderr, " % -30s%s\n", zOpt, aOpt[i].zHelp);
sqlite3_free(zOpt);
}
if( zHelp ){
fprintf(stderr, "\n%s\n", zHelp);
}
exit(1);
}
static int get_integer_option(CmdLineOption *pOpt, const char *zArg){
int i = 0;
int iRet = 0;
int bSign = 1;
if( zArg[0]=='-' ){
bSign = -1;
i = 1;
}
while( zArg[i] ){
if( zArg[i]<'0' || zArg[i]>'9' ) option_requires_argument_error(pOpt);
iRet = iRet*10 + (zArg[i] - '0');
i++;
}
return (iRet*bSign);
}
static int get_boolean_option(CmdLineOption *pOpt, const char *zArg){
if( 0==sqlite3_stricmp(zArg, "true") ) return 1;
if( 0==sqlite3_stricmp(zArg, "1") ) return 1;
if( 0==sqlite3_stricmp(zArg, "0") ) return 0;
if( 0==sqlite3_stricmp(zArg, "false") ) return 0;
option_requires_argument_error(pOpt);
return 0;
}
static void parse_command_line(
int argc,
char **argv,
int iStart,
CmdLineOption *aOpt,
void *pStruct,
const char *zHelp
){
char *pOut = (char*)pStruct;
int bVerbose = 0;
int iArg;
for(iArg=iStart; iArg<argc; iArg++){
const char *zArg = argv[iArg];
int nArg = strlen(zArg);
int nMatch = 0;
int iOpt;
for(iOpt=0; aOpt[iOpt].zText; iOpt++){
CmdLineOption *pOpt = &aOpt[iOpt];
if( 0==sqlite3_strnicmp(pOpt->zText, zArg, nArg) ){
if( nMatch ){
ambiguous_option_error(zArg);
}
nMatch++;
if( pOpt->eType==CMDLINE_BARE ){
*(int*)(&pOut[pOpt->iOff]) = 1;
}else{
iArg++;
if( iArg==argc ){
option_requires_argument_error(pOpt);
}
switch( pOpt->eType ){
case CMDLINE_INTEGER:
*(int*)(&pOut[pOpt->iOff]) = get_integer_option(pOpt, argv[iArg]);
break;
case CMDLINE_STRING:
*(const char**)(&pOut[pOpt->iOff]) = argv[iArg];
break;
case CMDLINE_BOOLEAN:
*(int*)(&pOut[pOpt->iOff]) = get_boolean_option(pOpt, argv[iArg]);
break;
}
}
}
}
if( nMatch==0 && 0==sqlite3_strnicmp("-cmdline:verbose", zArg, nArg) ){
bVerbose = 1;
nMatch = 1;
}
if( nMatch==0 ){
unknown_option_error(zArg, aOpt, zHelp);
}
}
if( bVerbose ){
int iOpt;
fprintf(stdout, "Options are: ");
for(iOpt=0; aOpt[iOpt].zText; iOpt++){
CmdLineOption *pOpt = &aOpt[iOpt];
if( pOpt->eType!=CMDLINE_BARE || *(int*)(&pOut[pOpt->iOff]) ){
fprintf(stdout, "%s ", pOpt->zText);
}
switch( pOpt->eType ){
case CMDLINE_INTEGER:
fprintf(stdout, "%d ", *(int*)(&pOut[pOpt->iOff]));
break;
case CMDLINE_BOOLEAN:
fprintf(stdout, "%d ", *(int*)(&pOut[pOpt->iOff]));
break;
case CMDLINE_STRING:
fprintf(stdout, "%s ", *(const char**)(&pOut[pOpt->iOff]));
break;
}
}
fprintf(stdout, "\n");
}
}
/*
** End of generic command line parser.
*************************************************************************/
static void abort_due_to_error(int rc){
fprintf(stderr, "Error: %d\n");
exit(-1);
}
static void execsql(sqlite3 *db, const char *zSql){
int rc = sqlite3_exec(db, zSql, 0, 0, 0);
if( rc!=SQLITE_OK ) abort_due_to_error(rc);
}
static int xConflict(void *pCtx, int eConflict, sqlite3_changeset_iter *p){
return SQLITE_CHANGESET_ABORT;
}
static void run_test(
sqlite3 *db,
sqlite3 *db2,
int nRow,
const char *zSql
){
sqlite3_session *pSession = 0;
sqlite3_stmt *pStmt = 0;
int rc;
int i;
int nChangeset;
void *pChangeset;
/* Attach a session object to database db */
rc = sqlite3session_create(db, "main", &pSession);
if( rc!=SQLITE_OK ) abort_due_to_error(rc);
/* Configure the session to capture changes on all tables */
rc = sqlite3session_attach(pSession, 0);
if( rc!=SQLITE_OK ) abort_due_to_error(rc);
/* Prepare the SQL statement */
rc = sqlite3_prepare(db, zSql, -1, &pStmt, 0);
if( rc!=SQLITE_OK ) abort_due_to_error(rc);
/* Open a transaction */
execsql(db, "BEGIN");
/* Execute the SQL statement nRow times */
for(i=0; i<nRow; i++){
sqlite3_bind_int(pStmt, 1, i);
sqlite3_step(pStmt);
rc = sqlite3_reset(pStmt);
if( rc!=SQLITE_OK ) abort_due_to_error(rc);
}
sqlite3_finalize(pStmt);
/* Extract a changeset from the sessions object */
rc = sqlite3session_changeset(pSession, &nChangeset, &pChangeset);
if( rc!=SQLITE_OK ) abort_due_to_error(rc);
execsql(db, "COMMIT");
/* Apply the changeset to the second db */
rc = sqlite3changeset_apply(db2, nChangeset, pChangeset, 0, xConflict, 0);
if( rc!=SQLITE_OK ) abort_due_to_error(rc);
/* Cleanup */
sqlite3_free(pChangeset);
sqlite3session_delete(pSession);
}
int main(int argc, char **argv){
struct Options {
int nRow;
int bWithoutRowid;
int bInteger;
int bAll;
const char *zDb;
};
struct Options o = { 2500, 0, 0, 0, "session_speed_test.db" };
CmdLineOption aOpt[] = {
CMDLINE_INT32( "-rows", "number of rows in test",
offsetof(struct Options, nRow) ),
CMDLINE_BOOL("-without-rowid", "use WITHOUT ROWID tables",
offsetof(struct Options, bWithoutRowid) ),
CMDLINE_BOOL("-integer", "use integer data (instead of text/blobs)",
offsetof(struct Options, bInteger) ),
CMDLINE_NONE("-all", "Run all 4 combos of -without-rowid and -integer",
offsetof(struct Options, bAll) ),
CMDLINE_TEXT("-database", "prefix for database files to use",
offsetof(struct Options, zDb) ),
{0, 0, 0, 0}
};
const char *azCreate[] = {
"CREATE TABLE t1(a PRIMARY KEY, b, c, d)",
"CREATE TABLE t1(a PRIMARY KEY, b, c, d) WITHOUT ROWID",
};
const char *azInsert[] = {
"INSERT INTO t1 VALUES("
"printf('%.8d',?), randomblob(50), randomblob(50), randomblob(50))",
"INSERT INTO t1 VALUES(?, random(), random(), random())"
};
const char *azUpdate[] = {
"UPDATE t1 SET d = randomblob(50) WHERE a = printf('%.8d',?)",
"UPDATE t1 SET d = random() WHERE a = ?"
};
const char *azDelete[] = {
"DELETE FROM t1 WHERE a = printf('%.8d',?)",
"DELETE FROM t1 WHERE a = ?"
};
int rc;
sqlite3 *db;
sqlite3 *db2;
char *zDb2;
int bWithoutRowid;
int bInteger;
parse_command_line(argc, argv, 1, aOpt, (void*)&o,
"This program creates two new, empty, databases each containing a single\n"
"table. It then does the following:\n\n"
" 1. Inserts -rows rows into the first database\n"
" 2. Updates each row in the first db\n"
" 3. Delete each row from the first db\n\n"
"The modifications made by each step are captured in a changeset and\n"
"applied to the second database.\n"
);
zDb2 = sqlite3_mprintf("%s2", o.zDb);
for(bWithoutRowid=0; bWithoutRowid<2; bWithoutRowid++){
for(bInteger=0; bInteger<2; bInteger++){
if( o.bAll || (o.bWithoutRowid==bWithoutRowid && o.bInteger==bInteger) ){
fprintf(stdout, "Testing %s data with %s table\n",
bInteger ? "integer" : "blob/text",
bWithoutRowid ? "WITHOUT ROWID" : "rowid"
);
/* Open new database handles on two empty databases */
unlink(o.zDb);
rc = sqlite3_open(o.zDb, &db);
if( rc!=SQLITE_OK ) abort_due_to_error(rc);
unlink(zDb2);
rc = sqlite3_open(zDb2, &db2);
if( rc!=SQLITE_OK ) abort_due_to_error(rc);
/* Create the schema in both databases. */
execsql(db, azCreate[o.bWithoutRowid]);
execsql(db2, azCreate[o.bWithoutRowid]);
/* Run the three tests */
run_test(db, db2, o.nRow, azInsert[o.bInteger]);
run_test(db, db2, o.nRow, azUpdate[o.bInteger]);
run_test(db, db2, o.nRow, azDelete[o.bInteger]);
/* Close the db handles */
sqlite3_close(db);
sqlite3_close(db2);
}
}
}
return 0;
}