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readahead

readahead

Section: Maintenance Commands (8) Updated: August 2009
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NAME

readahead - file preloader for boot process optimization  

SYNOPSIS

readahead [options] <file-list> [another-file-list [...]]  

DESCRIPTION

readahead is a files preloader designed to optimize the disk I/O during the boot process.  

OPTIONS

-b, --build
build optimised files list only, without sorting.
-s, --sort
build and sort list of files only (implies -b).
-o, --output <file>
write sorted list of files to file.
-d, --dont-sort
preload files described by an already sorted files list.
-h, --help
print the usage information.
-v, --verbose
enable the verbose mode.
-t, --timing
report time spent on each operation.
-f, --fadvise
use posix_fadvise(2) instead of readahead(2) as preloading method.
-m, --maxsize <max size>
maximum size in KiB a file can be in order to be preloaded, default is 10240.
<file-list> [another-file-list [...]]
One or more files containing the list of files to be preloaded or sorted. The files list can be generated by readahead-collector(8).
 

FILES

/etc/default/readahead-fedora
 

SEE ALSO

readahead-collector(8), readahead(2), posix_fadvise(2)  

AUTHORS

Arjan van de Ven <arjan@infradead.org>,
Ziga Mahkovec <ziga.mahkovec@klika.si>, Karel Zak <kzak@redhat.com>,

This manual page was written by Raphael Geissert <geissert@debian.org>


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
FILES
SEE ALSO
AUTHORS

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Time: 22:02:14 GMT, April 16, 2011