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gpfsClearFileCache_t Structure
Name
gpfsClearFileCache_t – Indicates file access in the near future is not expected.
Library
GPFS Library (libgpfs.a for AIX, libgpfs.so for Linux)
Structure
typedef struct
{
int structLen;
int structType;
} gpfsClearFileCache_t;
Description
The gpfsClearFileCache_t structure indicates file access in the near future is not expected.
The application does not expect to make any further accesses to the file in the near future, so GPFS
removes any data or metadata pertaining to the file from its cache.
Multiple node applications that have finished one phase of their computation may want to use this hint
before the file is accessed in a conflicting mode from another node in a later phase. The potential
performance benefit is that GPFS can avoid later synchronous cache consistency operations.
Members
structLen Length of the gpfsClearFileCache_t structure.
structType Structure identifier GPFS_CLEAR_FILE_CACHE.
Location
/usr/lpp/mmfs/lib/libgpfs.a for AIX, /usr/lpp/mmfs/lib/libgpfs.so for Linux
346 GPFS: Administration and Programming Reference