Can Permalink structure of %postname%/%post_id% improve performance

I hate to answer this with a link, But with WordPress 3.3, how it searches for permalinks have been greatly improved so you can almost put anything into the permalinks and it will be fast.

http://ottopress.com/2011/how-the-postname-permalinks-in-wordpress-3-3-work/

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)