vfs_cacheprime - prime the kernel file data cache
vfs objects =
This VFS module is part of the samba
The vfs_cacheprime VFS module reads chunks of file data near the range requested
by clients in order to make sure the data is present in the kernel file data
cache at the time when it is actually requested by clients.
The size of the disk read operations performed by vfs_cacheprime is determined
by the cacheprime:rsize option. All disk read operations are aligned on
boundaries that are a multiple of this size. Each range of the file data is
primed at most once during the time the client has the file open.
This module is stackable.
cacheprime:rsize = BYTES
The number of bytes with which to prime the
kernel data cache.
The following suffixes may be applied to BYTES:
•K - BYTES is a number of
•M - BYTES is a number of
•G - BYTES is a number of
For a hypothetical disk array, it is necessary to ensure that all read
operations are of size 1 megabyte (1048576 bytes), and aligned on 1 megabyte
vfs objects = cacheprime
cacheprime:rsize = 1M
cacheprime is not a substitute for a general-purpose readahead mechanism. It is
intended for use only in very specific environments where disk operations must
be aligned and sized to known values (as much as that is possible).
This man page is correct for version 3.0.25 of the Samba suite.
The original Samba software and related utilities were created by Andrew
Tridgell. Samba is now developed by the Samba Team as an Open Source project
similar to the way the Linux kernel is developed.