readahead
readahead
Section: Maintenance Commands (8) Updated: August 2009 Local index
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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