CA2136727A1 - System for accessing distributed data cache channel at each network node to pass requests and data - Google Patents

System for accessing distributed data cache channel at each network node to pass requests and data

Info

Publication number
CA2136727A1
CA2136727A1 CA002136727A CA2136727A CA2136727A1 CA 2136727 A1 CA2136727 A1 CA 2136727A1 CA 002136727 A CA002136727 A CA 002136727A CA 2136727 A CA2136727 A CA 2136727A CA 2136727 A1 CA2136727 A1 CA 2136727A1
Authority
CA
Canada
Prior art keywords
ndc
dataset
client
site
ndcs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002136727A
Other languages
French (fr)
Other versions
CA2136727C (en
Inventor
William M. Pitts
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mosaid Technologies Inc
Original Assignee
William M. Pitts
Network Caching Technology
Twister Investments, Llc
Mosaid Technologies Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by William M. Pitts, Network Caching Technology, Twister Investments, Llc, Mosaid Technologies Incorporated filed Critical William M. Pitts
Priority to EP92914290A priority Critical patent/EP0643853B1/en
Priority to JP6500488A priority patent/JPH08500918A/en
Priority to AU22277/92A priority patent/AU2227792A/en
Priority to PCT/US1992/004939 priority patent/WO1993024890A1/en
Priority claimed from PCT/US1992/004939 external-priority patent/WO1993024890A1/en
Publication of CA2136727A1 publication Critical patent/CA2136727A1/en
Application granted granted Critical
Publication of CA2136727C publication Critical patent/CA2136727C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0806—Multiuser, multiprocessor or multiprocessing cache systems
    • G06F12/0813—Multiuser, multiprocessor or multiprocessing cache systems with a network or matrix configuration
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0806—Multiuser, multiprocessor or multiprocessing cache systems
    • G06F12/0815—Cache consistency protocols
    • G06F12/0817—Cache consistency protocols using directory methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0862—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches with prefetch
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0866—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches for peripheral storage systems, e.g. disk cache

Abstract

Network Distributed Caches ("NDCs") (50) permit accessing a named dataset stored at an NDC server terminator site (22) in response to a request submitted to an NDC client terminator site (24) by a client workstation (42). In accessing the dataset, the NDCs (50) form an NDC data conduit (62) that provides an active virtual circuit ("AVC") from the NDC client site (24) through intermediate NDC sites (26B, 26A) to the NDC server site (22). Through the AVC provided by the conduit (62), the NDC
sites (22, 26A and 26B) project an image of the requested portion of the named dataset into the NDC client site (24). The NDCs (50) maintain absolute consistency between the source dataset and its projections at all NDC client terminator sites (24, 204B and 206) at which client workstations access the dataset. Channels (116) in each NDC (50) accumulate profiling data from the re-quests to access the dataset for which they have been claimed. The NDCs (50) use the profile data stored in channels (116) to an-ticipate future requests.
CA002136727A 1992-06-03 1992-06-03 System for accessing distributed data cache channel at each network node to pass requests and data Expired - Lifetime CA2136727C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP92914290A EP0643853B1 (en) 1992-06-03 1992-06-03 System for accessing distributed data cache channel at each network node to pass requests and data
JP6500488A JPH08500918A (en) 1992-06-03 1992-06-03 System for accessing distributed data cache channels at each network node to pass requests and data
AU22277/92A AU2227792A (en) 1992-06-03 1992-06-03 System for accessing distributed data cache channel at each network node to pass requests and data
PCT/US1992/004939 WO1993024890A1 (en) 1992-06-03 1992-06-03 System for accessing distributed data cache channel at each network node to pass requests and data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1992/004939 WO1993024890A1 (en) 1992-06-03 1992-06-03 System for accessing distributed data cache channel at each network node to pass requests and data

Publications (2)

Publication Number Publication Date
CA2136727A1 true CA2136727A1 (en) 1993-12-09
CA2136727C CA2136727C (en) 2003-09-23

Family

ID=22231149

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002136727A Expired - Lifetime CA2136727C (en) 1992-06-03 1992-06-03 System for accessing distributed data cache channel at each network node to pass requests and data

Country Status (2)

Country Link
CA (1) CA2136727C (en)
DE (1) DE69227384D1 (en)

Also Published As

Publication number Publication date
CA2136727C (en) 2003-09-23
DE69227384D1 (en) 1998-11-26

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