deferred reads in Cache managers output for I/O operations

Dear all,

        In the cache managers interface (cachemgr.cgi) I see at out Top-level
Cache a lot of "deferred reads"..
For HTTP: deferred reads: 205414 (10%), FTP: deferred reads: 60788 (29%)
When I look one of our First level caches, I see more "normal" figures like
"0%" or (at the most) "2%" ..

I like to know what these "deferred reads" are, if the are "harmfull" and
what can/must be done about it ....

Cheers, Henny

-----------------------------------------------------------------------------
E-Mail: Henny.Bekker@cc.ruu.nl ! Disclaimer: The main obstacle to progress
http http://www.ruu.nl/~henny ! progress is not ignorance,but
PTT: Voice: +31 30 2536971 Fax: +31 30 2531633 ! the illusion of knowledge
X400: /G=Henny/S=Bekker/OU=cc/O=ruu/PRMD=surf/ADMD=400net/C=nl o
Paper: H.J.Bekker, Utrecht University, Computer Centre _ /- _
        Po Box 80011, 3508 TA Utrecht Nederland (_) > (_)
-----------------------------------------------------------------------------
Received on Tue Sep 16 1997 - 04:27:15 MDT