WO2001075590A3 - Profile-driven data layout optimization - Google Patents

Profile-driven data layout optimization Download PDF

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Publication number
WO2001075590A3
WO2001075590A3 PCT/US2001/010352 US0110352W WO0175590A3 WO 2001075590 A3 WO2001075590 A3 WO 2001075590A3 US 0110352 W US0110352 W US 0110352W WO 0175590 A3 WO0175590 A3 WO 0175590A3
Authority
WO
WIPO (PCT)
Prior art keywords
data
data members
memory
referenced
members
Prior art date
Application number
PCT/US2001/010352
Other languages
French (fr)
Other versions
WO2001075590A2 (en
Inventor
Gerald Dwayne Kuch
Brian C Beckman
Jason L Zander
Original Assignee
Microsoft Corp
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 Microsoft Corp filed Critical Microsoft Corp
Priority to AU2001249682A priority Critical patent/AU2001249682A1/en
Priority to EP01922933.5A priority patent/EP1269311B1/en
Publication of WO2001075590A2 publication Critical patent/WO2001075590A2/en
Publication of WO2001075590A3 publication Critical patent/WO2001075590A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/445—Program loading or initiating
    • G06F9/44557—Code layout in executable memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/445—Program loading or initiating
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/448—Execution paradigms, e.g. implementations of programming paradigms
    • G06F9/4488—Object-oriented

Abstract

Data layout optimization arranges data members within memory to enhance software performance. Profiling data is consulted to determine how to group data members for an object class into groups. One technique groups the data members based on how frequently the data members are referenced in memory. Another technique groups the data members based on their affinities for one another in time as determined by observing when references to the data members take place. A variety of options when collecting the profiling data and grouping the data members is supported. The data member grouping is recorded in metadata associated with a definition of the object class. At runtime, a class loader places the data members of an object in memory according to the metadata. Data members of different groups can be placed in separately-loadable units of memory in the memory system. Subsequently, when the data members are referenced in memory, more frequently referenced data members, including those that tend to be referenced at times close to each other, reside at neighboring locations in the memory system.
PCT/US2001/010352 2000-04-04 2001-03-29 Profile-driven data layout optimization WO2001075590A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001249682A AU2001249682A1 (en) 2000-04-04 2001-03-29 Profile-driven data layout optimization
EP01922933.5A EP1269311B1 (en) 2000-04-04 2001-03-29 Profile-driven data layout optimization

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/542,525 US6862729B1 (en) 2000-04-04 2000-04-04 Profile-driven data layout optimization
US09/542,525 2000-04-04

Publications (2)

Publication Number Publication Date
WO2001075590A2 WO2001075590A2 (en) 2001-10-11
WO2001075590A3 true WO2001075590A3 (en) 2002-06-20

Family

ID=24164194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/010352 WO2001075590A2 (en) 2000-04-04 2001-03-29 Profile-driven data layout optimization

Country Status (4)

Country Link
US (3) US6862729B1 (en)
EP (1) EP1269311B1 (en)
AU (1) AU2001249682A1 (en)
WO (1) WO2001075590A2 (en)

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Also Published As

Publication number Publication date
US7013459B2 (en) 2006-03-14
US7496909B2 (en) 2009-02-24
EP1269311A2 (en) 2003-01-02
US6862729B1 (en) 2005-03-01
WO2001075590A2 (en) 2001-10-11
US20050172278A1 (en) 2005-08-04
EP1269311B1 (en) 2015-08-12
AU2001249682A1 (en) 2001-10-15
US20050177822A1 (en) 2005-08-11

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