/CACHE:xxx
parameter in the
HPFS.IFS command line.
The maximum cache size for HPFS volumes is 2048 KB, which is not a whole lot.
You may request that &os2; automatically determine the cache size. In most cases, this will then result in about 10% of the installed memory, but it is not recommended to use this setting.
See "File-system caches" for an introduction to file-system caches in general.
The setting "Cache item threshold" determines (in KB) the
maximum size of objects that will be saved in the caches. This
corresponds to the
/CRECL:xxx
parameter in the HPFS.IFS command line.
This setting is supposed to prevent large files which are usually only loaded once from
clearing the whole cache.
However, the default value of 4 KB is way too low. You can safely specify
32 KB or even the maximum of 64 KB here.