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- Newsgroups: comp.sys.intel
- Path: sparky!uunet!scorn!scolex!md
- From: md@sco.COM (Michael Davidson)
- Subject: Re: Intel 486 on-chip cache in a multiprocessor config ?
- Organization: The Santa Cruz Operation, Inc.
- Date: Wed, 09 Sep 1992 18:40:23 GMT
- Message-ID: <1992Sep09.184023.28664@sco.COM>
- References: <1992Aug31.170710.7898@jpradley.jpr.com>
- Sender: news@sco.COM (Account for Usenet System)
- Lines: 12
-
-
- adykes@jpradley.jpr.com (Al Dykes) writes:
-
- >Can the 486 on-chip cache maintain cache coherency in
- >a shared memory MP configuration ?
-
- Yes - see the 486 hardware reference manual for details of how
- internal cache invalidation bus cycles work.
-
- (btw this doesn't just apply to MP systems - the same technique is
- used to maintain coherency of the internal cache when any other bus
- master device modifies the contents of memory)
-