Guys can anyone please explain or point me to a link where i can understand this output for pgbouncer. What does each column of this table mean? pgbouncer=# show mem; name | size | used | free | memtotal --------------+------+------+------+---------- user_cache | 184 | 12 | 77 | 16376 db_cache | 160 | 2 | 100 | 16320 pool_cache | 408 | 4 | 46 | 20400 server_cache | 360 | 121 | 279 | 144000 client_cache | 360 | 1309 | 291 | 576000 iobuf_cache | 2064 | 3 | 797 | 1651200 Thanks Prabhjot |