Improve sqlite performance in yii - php

Question

I saw some discussions similar obviously but couldn't found a solution(if there is one). I have a project running on linux machine.
The problem is that working with the Database takes forever. For example 1000 inserts takes approximately 10 seconds.
I tried reducing the time in a different ways with little success so I thought I just place here a part of my code and maybe there is something critical I'm not doing right.
First of all, in main.php the database is configured like this:
'db'=>array(
'pdoClass' => 'NestedPDO',
'connectionString' => 'sqlite:/tmp/mydb.db',
'class' => 'CDbConnection',
'schemaCachingDuration' => 100)
I work with the database in the following way:
$connection=Yii::app()->db;
$transaction = $connection->beginTransaction();
try
{
Some Code..
$transaction->commit();
}
catch (Exception $ex)
{
$transaction->rollback();
}
Inside Some Code there could be calls to different functions that the connection variable is passed to.
Finally each sqlite command (for example, 1000 inserts) is written like:
$statement= 'insert into my_tbl (id, name) VALUES(:id, :name)';
$command=$connection->createCommand($statement);
$command->bindParam(":id", $id);
$command->bindParam(":name", $name);
$command->execute();

Answer 1

First make sure where the bottleneck is.
try
{
$t_start = time();
$transaction->commit();
$elapsed = time() - $t_start;
}
I have add somewhat good success by committing more often.