1 files changed, 17 insertions, 0 deletions

diff --git a/miscutils/readahead.c b/miscutils/readahead.c
index e22aaa468..0b502f88c 100644
--- a/miscutils/readahead.c
+++ b/miscutils/readahead.c
@@ -9,6 +9,23 @@
  *
  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
+//config:config READAHEAD
+//config:       bool "readahead"
+//config:       default y
+//config:       depends on LFS
+//config:       select PLATFORM_LINUX
+//config:       help
+//config:         Preload the files listed on the command line into RAM cache so that
+//config:         subsequent reads on these files will not block on disk I/O.
+//config:
+//config:         This applet just calls the readahead(2) system call on each file.
+//config:         It is mainly useful in system startup scripts to preload files
+//config:         or executables before they are used. When used at the right time
+//config:         (in particular when a CPU bound process is running) it can
+//config:         significantly speed up system startup.
+//config:
+//config:         As readahead(2) blocks until each file has been read, it is best to
+//config:         run this applet as a background job.
 
 //usage:#define readahead_trivial_usage
 //usage:       "[FILE]..."