Thanks esmi.
It worked by merging that 2 functions:
query_posts(array( 'post__in' => array(1,2,3) ))
Cheers.
Well, it is not helping when editing a post.
Time continues to be very slow (more than 5 minutes)
Well, this solution worked for me.
Sites was very slow at the admin area.
After i disabled object cache, now admin areas are running fine.
I will research APC and memcached for object cache.
Regards
