PostgreSQL Mission Retrofit Memory Manager
Category : Database » PostgreSQL
all existing DBMS research is limited to understanding . Understanding the heap-memory needs of. DBMS . PostgreSQL, as indicated above, makes heap .
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Abstract Management of heap memory in modern DBMSis something that often falls by the wayside.While academics focus on replacement policiesfor bufferpools, both commercial and noncom-mercial systems largely largely ignore the penal-ties for using too much heap memory during queryprocessing. The result, particularly under heavyloads, are systems that thrash virtual memory,force evictions from operating system caches, andotherwise exhibit suboptimal performance. Ourresearch involves wrangling in the monster ofheap allocation, using a simple control strategy, toreduce or eliminate these problems and improveoverall system performance and throughput.
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