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preload(8) [freebsd man page]

PRELOAD(8)						  System Administration Utilities						PRELOAD(8)

NAME

       preload - Adaptive readahead daemon

SYNOPSIS

       preload [OPTION]...

DESCRIPTION

       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

SIGNALS

       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.

AUTHOR

       Written by Behdad Esfahbod <behdad@gnu.org>

REPORTING BUGS

       Report bugs to <http://preload.sf.net/bug>

COPYRIGHT

       Copyright (C) 2005,2006,2007,2008 Behdad Esfahbod.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

preload 0.6.4							     May 2012								PRELOAD(8)

Check Out this Related Man Page

wml::des::preload(3)						     EN Tools						      wml::des::preload(3)

NAME

       wml::des::preload - Preload Images

SYNOPSIS

	#use wml::des::preload

	<preload src=<image filename> via=<trick>>

DESCRIPTION

       This include file provides the "<preload>" tag which can be used to preload images. Such preloading is usually done to speedup access for
       following pages. Currently there are only a few tricks how this can be done.

       The following combinations are currently supported:

       "src="anyimage "via=size"
	   Preloads the image anyimage by using an "<img>" tag with the attributes "width=1 height=1" which leads to the loading of the image but
	   only to a 1 pixel in display.

	   Advantage: Works for all browsers.

	   Disadvantage: This approach has the nasty side-effect of an occuring 1 pixel in display because "width=0 height=0" does not work as
	   expected in most browsers (especially in Netscape 4.x). So, position your "<preload>" tag somewhere it does not destroy the look and
	   feel of your page.

       "src="anyimage "via=js"
	   Preloads the image anyimage by using a JavaScript snippet which loads the image by declaring an unused "Image" object.

	   Advantage: Silently preloads the image without displaying anything.

	   Disadvantage: Only works for browsers with a JavaScript implementation and only for those who support the "Image" object (currently
	   NS/3, NS/4, IE/4).

AUTHORS

	Ralf S. Engelschall
	rse@engelschall.com
	www.engelschall.com

	Denis Barbier
	barbier@engelschall.com

REQUIRES

	Internal: P1, P2
	External: --

SEE ALSO

       wml::std::tags(3) HTML 3.2 "<img>" tag.

EN Tools							    2014-04-16						      wml::des::preload(3)
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