gistfile1.txt

                 key                  | buffers | dirty_buffers | percentage_of_shared_buffers 
--------------------------------------+---------+---------------+------------------------------
 posts                                |  148067 |           111 |                      37.6554
 posts_pkey1                          |   34057 |            57 |                       8.6611
 attributes                           |   33867 |           222 |                       8.6128
 feeds                                |   33613 |          1882 |                       8.5482
 index_attributes_on_post_id_and_type |   27435 |            13 |                       6.9771
 posts_feed_id                        |   13132 |           120 |                       3.3396
 assets                               |   11147 |            38 |                       2.8348
 notifications                        |   10365 |             8 |                       2.6360
 post_taggings                        |    7015 |            32 |                       1.7840
 assets_pkey                          |    6547 |             4 |                       1.6650
 posts_guid                           |    5298 |           225 |                       1.3474
 posts_for_one_soup                   |    5073 |           169 |                       1.2901
 feeds_pkey                           |    3956 |             3 |                       1.0061