$ids = new WP_Query( array( 'posts_per_page' => 10,
                        'no_found_rows' => true,
                        'post_status' => 'publish',
                        'ignore_sticky_posts' => true,
                        'meta_key' => _count-views_all,
                        'meta_value_num' => '0',
                        'meta_compare' => '>',
                        'orderby'=>'meta_value_num',
                        'order'=>'DESC',
                        'fields'=>'ids',
                        'post_type'=> 'post',
                    )
            );