herr_t H5Fdisable_mdc_flushes(
hid_t file_id
)
H5O/H5Fenable/disable_mdc_flushes()
and associated
H5Xflush()
functions can be used to control the flushing
of entries from a file’s metadata cache. Metadata cache entries
can be controlled at both the individual HDF5 object level (datasets,
groups, committed datatypes) and the entire metadata cache level. This
function prevents a file’s dirty metadata entries
from being flushed from the cache by the usual cache eviction/flush
policy. Instead, users must manually flush the cache or entries
for individual objects via H5F/H5D/H5G/H5T/H5Oflush()
calls.
H5Fopen()
or
H5Fcreate()
) may be passed to this function. To restore
flushes on individual HDF5 objects, use H5Oenable_mdc_flushes.
Passing in a hid_t
identifier that represents any other
HDF5 entity is considered an error.
Misuse of this function can cause the cache to exhaust available memory.
Prevention only pertains to new or dirty metadata entries. Clean entries can still be evicted from the cache.
hid_t file_id
|
IN: An HDF5 file identifier. |
Release | Change |
1.10.0 | C function introduced with this release. |