In reference counting schemes for automatically reclaiming storage, each time a reference to an object is created or destroyed, the reference count of the object needs to be updated. This may involve expensive inter-processor message exchanges in distributed environments. This overhead can be reduced by analyzing the lifetimes of references to avoid unnecessary updatings. This paper describes a technique for reducing the runtime reference counting overhead through compile-time optimization. We present a compile-time analysis called re~- erence escape analysis for higher-order functional languages that determines whether the lifetime of a reference ezceeds the lifetime of the environment in which the reference was created. Using this statically inferred information, a method for optimizing reference counting schemes is described. Our method can be applied to reference counting schemes in both uniprocessor and multiprocessor environments.
|Original language||English (US)|
|Number of pages||12|
|Journal||ACM SIGPLAN Notices|
|State||Published - Jan 5 1991|
ASJC Scopus subject areas
- Computer Graphics and Computer-Aided Design