/**
* Deletes a DBA database from the filesystem
*
* @static
* @param string $driver type of storage object to return
* @return object DBA storage object, returned by reference
*/
function db_drop($name, $driver = 'file')
{
if (!function_exists('dba_open') || $driver == 'file') {
require_once 'DBA/Driver/File.php';
return DBA_Driver_File::db_drop($name);
} elseif (in_array($driver, DBA::getDriverList())) {
require_once 'DBA/Driver/Builtin.php';
return DBA_Driver_Builtin::db_drop($name);
} else {
return DBA::raiseError(DBA_ERROR_UNSUP_DRIVER, NULL, NULL, 'driver: ' . $driver);
}
}
//
ini_set('include_path', ini_get('include_path') . ':../../');
require_once 'DBA.php';
require_once 'PEAR.php';
$testDataArray = array('11111111111111111111', '222222222222222222222222', '3333333333333333333333333333', '44444444444444444444444444444444', '555555555555555555555555555555555555', '6666666666666666666666666666666666666666', '77777777777777777777777777777777777777777777', '888888888888888888888888888888888888888888888888', '9999999999999999999999999999999999999999999999999999');
$maxDataIndex = sizeof($testDataArray) - 1;
$maxTestKeys = array(1600, 3200, 6400, 12800, 25600);
$transactionsInterval = 2000;
$maxTransactions = $transactionsInterval * 8;
$prefix = './';
function getmicrotime()
{
list($usec, $sec) = explode(" ", microtime());
return (double) $usec + (double) $sec;
}
foreach (DBA::getDriverList() as $driver) {
echo "Benchmarking driver: {$driver}\n";
$testDB = DBA::create($driver);
foreach ($maxTestKeys as $maxTestKey) {
$dat_fp = fopen($prefix . "{$driver}_{$maxTestKey}.dat", 'w');
for ($transactions = $transactionsInterval; $transactions <= $maxTransactions; $transactions += $transactionsInterval) {
$result = $testDB->open($prefix . 'benchmark_db_' . $driver, 'n');
if (PEAR::isError($result)) {
echo $result->getMessage() . "\n";
} else {
// only measure successful transactions
$actualTransactions = 0;
// begin stopwatch
$start = getmicrotime();
for ($i = 0; $i < $transactions; ++$i) {
$testKey = rand(0, $maxTestKey);
