key      shmid perms                  size  cpid  lpid nattch   uid   gid  cuid  cgid      atime      dtime      ctime                   rss                  swap
      5555          0   644                  1024  1563 3991858      0     0     0     0     0 1779830945 1779830945 1777486415                     0                  4096
 509301420     229378   600                  5000 900321 900321      0     0     0     0     0 1777523773 1777523887 1777523773                     0                  8192
1361136466     426047   600                  5000 2892946 2892946      0     0     0     0     0 1777670392 1777670399 1777670392                     0                  8192