man preload (Administration système) - Adaptive readahead daemon


preload - Adaptive readahead daemon


preload [OPTION]...


preload is an adaptive readahead daemon that prefetches files mapped by applications from the disk to reduce application startup time.

-h, --help
Display this information and exit.
-v, --version
Display version information and exit.
-c, --conffile
Set configuration file. Empty string means no conf file. (default is /home/behdad/.local/etc/preload.conf)
-s, --statefile
Set state file to load/save. Empty string means no state. (default is /home/behdad/.local/var/preload/preload.state)
-l, --logfile
Set log file. Empty string means to log to stderr. (default is /home/behdad/.local/var/log/preload.log)
-f, --foreground
Run in foreground, do not daemonize.
-n, --nice
Nice level. (default is 15)
-V, --verbose
Set the verbosity level. Levels 0 to 10 are recognized. (default is 4)
-d, --debug
Debug mode: --logfile '' --foreground --verbose 9


On receipt of a SIGHUP, the daemon will close and reopen its log file, and reread the configuratoin file.

On receipt of a SIGUSR1, the daemon dumps the currently loaded configuration into the log file.

On receipt of a SIGUSR2, the daemon saves its state into the state file.


Written by Behdad Esfahbod <>


Copyright © 2005 Behdad Esfahbod.

This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.