1 files changed, 16 insertions, 0 deletions

diff --git a/miscutils/Config.in b/miscutils/Config.in
index 4296b54ea..9ad342151 100644
--- a/miscutils/Config.in
+++ b/miscutils/Config.in
@@ -276,6 +276,22 @@ config CONFIG_MT
           to advance or rewind a tape past a specified number of archive
           files on the tape.
 
+config CONFIG_READAHEAD
+        bool "readahead"
+        default n
+        help
+          Preload the files listed on the command line into RAM cache so that
+          subsequent reads on these files will not block on disk I/O.
+
+          This applet just calls the readahead(2) system call on each file.
+          It is mainly useful in system startup scripts to preload files
+          or executables before they are used.  When used at the right time
+          (in particular when a CPU boundprocess is running) it can
+          significantly speed up system startup.
+
+          As readahead(2) blocks until each file has been read, it is best to
+          run this applet as a background job. 
+
 config CONFIG_RUNLEVEL
         bool "runlevel"
         default n