readahead(8)
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>