hi,everyone

The below information often appeared in the listserv.log file recently, I
want to know it mean and how to have it not show.

Platform: UNIX, listserv 1.8a


*** FIO file cache now totals 10876k. A list of cached files follows. ***

File size  Usage  Flags  File name
---------  -----  -----  ---------
    5398k      1   U     /home/listserv/home/eproduct-l.list
    5470k      2         /home/listserv/home/enews-l.list
       3k      1         /home/listserv/home/listkwd.file
       6k      2         /home/listserv/home/test-l.list