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hydos10
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fastopen
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1991-05-03
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FASTOPEN
Store location of recently used files for faster access
See also <CONFIG.SYS> <INSTALL>
COMMAND TYPE: External VERSION: 3.3 and up
DOS locates files by searching each directory in the path each time the
file is accessed. On fixed disks with complex directory structures, this
can take a large amount of time. FASTOPEN stores in memory the location of
directories and recently opened files, and searches this list first when
opening a file. It is most useful for applications which open and close
many files.
USE: FASTOPEN [d:[=n][ ... ] [/X]
or FASTOPEN [d:[=([n],m)][ ... ] [/X]
d: to specify the drive to process. Any fixed disk drive may be used.
n the number of directories or file entries to remember for the drive
given as "d". The default is 10. (Range is 10-999.)
m is the number of file extent entries for the drive named (DOS 4.x only)
If not present, the feature is not provided.
/X indicates the the FASTOPEN cache should be placed in expanded (LIM 4.0)
memory (DOS 4.x only)
Fastopen works only on fixed discs (up to 4) and will not work with networks.
FASTOPEN can be used only once. All drives must be defined the first
time FASTOPEN is used.
(DOS 4.x)
FASTOPEN may be executed at boot time using INSTALL in <CONFIG.SYS>