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VFS_CACHEPRIME(8)
NAME
  vfs_cacheprime - prime the kernel file data cache

SYNOPSIS
  vfs objects = cacheprime

DESCRIPTION
  This VFS module is part of the samba(7) suite.

  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.

OPTIONS
  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 kilobytes

	•
	   M - BYTES is a number of megabytes

	•
	   G - BYTES is a number of gigabytes

EXAMPLES
  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 boundaries:

	  [hypothetical]
	  vfs objects = cacheprime
	  cacheprime:rsize = 1M

CAVEATS
  cacheprime is not a 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).

VERSION
  This man page is correct for version 3.0.25 of the Samba suite.

AUTHOR
  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.

Index for Section 8

Alphabetical listing for V

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