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Overview
Comment: | Add a speed-test program for the sessions module. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | preupdate-without-rowid |
Files: | files | file ages | folders |
SHA1: |
25f1275fe3e940c1d9a7b013cb374430 |
User & Date: | dan 2017-01-31 17:31:30.384 |
Context
2017-02-01
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14:10 | Changes so that the pre-update hook and the sessions module work with WITHOUT ROWID tables. (check-in: 964bdc27f8 user: dan tags: trunk) | |
2017-01-31
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17:31 | Add a speed-test program for the sessions module. (Closed-Leaf check-in: 25f1275fe3 user: dan tags: preupdate-without-rowid) | |
14:08 | Merge latest trunk with this branch. (check-in: 4a592abbc5 user: dan tags: preupdate-without-rowid) | |
Changes
Added ext/session/session_speed_test.c.
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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; } |