PRELOAD

Section: System Administration Utilities (8)
Updated: July 2018
Page Index

NAME

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 command line parameters and their default values, and exit.
-v, --version: Display version information and exit.
-c, --conffile: Set configuration file. Empty string means no conf file. (default is ,/etc/preload.conf/)
-s, --statefile: Set state file to load/save. Empty string means no state. (default is ,/var/lib/preload/preload.state/)
-l, --logfile: Set log file. Empty string means to log to stderr. (default is ,/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 <behdad@gnu.org>