公开(公告)号：CA1303747C

公开(公告)日：1992-06-16

申请号：CA558110

申请日：1988-02-04

Applicant: IBM

Inventor： CHRISTOPHER KENNETH W JR ,  FEIGENBAUM BARRY A ,  KIM JIN ,  LOVE DOUGLAS C

IPC: G06F12/00 ,  G06F12/08 ,  G06F17/30 ,  G06F15/40

Abstract: METHOD OF RAPIDLY OPENING DISK FILES IDENTIFIED BY PATH NAMES A data processing system has files stored on disks in a tree structure of directories and files. The system is operated to rapidly open files which have been recently opened or for which partial path information is available, by accessing a drive cache in main memory. The cache has entries chained in a tree structure which is then searched to provide the same information during the opening process as that information which would otherwise have to be gotten from a disk. When the cache is full, a new entry replaces the least recently used entry.