NAME¶
startpar - start runlevel scripts in parallel
SYNOPSIS¶
startpar [
-p par] [
-i iorate] [
-t
timeout] [
-T global_timeout] [
-a arg]
prg1 prg2 ...
startpar [
-p par] [
-i iorate] [
-t
timeout] [
-T global_timeout]
-M [
boot|
start|
stop]
DESCRIPTION¶
startpar is used to run multiple run-level scripts in parallel. The degree of
parallelism on one
CPU can be set with the
-p option, the
default is full parallelism. An argument to all of the scripts can be provided
with the
-a option. Processes blocked by pending
I/O will cause
new process creation to be weighted by the iorate factor
800. To change
this factor the option
-i can be used to specify another value. The
amount
will be subtracted from the total number of processes which could be started,
where nblocked is the number of processes currently blocked by pending I/O.
The output of each script is buffered and written when the script exits, so
output lines of different scripts won't mix. You can modify this behaviour by
setting a timeout.
The timeout set with the
-t option is used as buffer timeout. If the
output buffer of a script is not empty and the last output was
timeout
seconds ago, startpar will flush the buffer.
The
-T option timeout works more globally. If no output is printed for
more than
global_timeout seconds, startpar will flush the buffer of the
script with the oldest output. Afterwards it will only print output of this
script until it is finished.
The
-M option switches
startpar into a
make(1) like
behaviour. This option takes three different arguments:
boot,
start, and
stop for reading
.depend.boot or
.depend.start or
.depend.stop respectively in the directory
/etc/init.d/. By scanning the boot and runlevel directories in
/etc/rcX.d/ it then executes the appropriate scripts in parallel.
FILES¶
/etc/init.d/.depend.boot
/etc/init.d/.depend.start
/etc/init.d/.depend.stop
SEE ALSO¶
init(8) insserv(8).
COPYRIGHT¶
2003,2004 SuSE Linux AG, Nuernberg, Germany.
2007 SuSE LINUX Products GmbH, Nuernberg, Germany.
AUTHOR¶
Michael Schroeder <mls@suse.de>
Takashi Iwai <tiwai@suse.de>
Werner Fink <werner@suse.de>
