Buddy systems

  • Authors:
  • James L. Peterson;Theodore A. Norman

  • Affiliations:
  • Univ. of Texas, Austin;Brigham Young Univ., Provo, UT

  • Venue:
  • Communications of the ACM
  • Year:
  • 1977

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Abstract

Two algorithms are presented for implementing any of a class of buddy systems for dynamic storage allocation. Each buddy system corresponds to a set of recurrence relations which relate the block sizes provided to each other. Analyses of the internal fragmentation of the binary buddy system, the Fibonacci buddy system, and the weighted buddy system are given. Comparative simulation results are also presented for internal, external, and total fragmentation.