Article View: mod.computers.apollo
Article #413Re: slow disks
From: fischer-michael
Date: Tue, 24 Mar 1987 19:06
Date: Tue, 24 Mar 1987 19:06
14 lines
1241 bytes
1241 bytes
Why would a diskless node run faster than disked node when both are using
the same disk? This question is important and may effect future purchases.
Can anybody out there (Apollo?) tell me whats going on??
Memory! When running diskless, you have in effect 8MB of memory
-- 4 on the diskless node and 4 on its disked partner. Fetching
a page from your partner's memory is much faster than bringing it
in from a local disk. You mention that you are running a 6MB program
on a 4MB node; that will likely result in a lot of paging activity.
It sounds like your best bet is to get more memory.
--Mike Fischer
-------
Technical Details
Message-ID:
<8703241906.AA05137@yale-eli.YALE.ARPA>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!water!watnot!watmath!clyde!rutgers!ames!ucbcad!ucbvax!YALE.ARPA!fischer-michaelShow Full Headers
Complete Article Headers
Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watnot!watmath!clyde!rutgers!ames!ucbcad!ucbvax!YALE.ARPA!fischer-michael From: fischer-michael@YALE.ARPA.UUCP Newsgroups: mod.computers.apollo Subject: Re: slow disks Message-ID: <8703241906.AA05137@yale-eli.YALE.ARPA> Date: Tue, 24-Mar-87 14:06:46 EST Article-I.D.: yale-eli.8703241906.AA05137 Posted: Tue Mar 24 14:06:46 1987 Date-Received: Thu, 26-Mar-87 07:35:16 EST Sender: daemon@ucbvax.BERKELEY.EDU Distribution: world Organization: The ARPA Internet Lines: 14 Approved: apollo@yale-comix.arpa