Hello,
Following patch allows sysadmins to configure nice values for RC daemons.
Default nice value is set to 10 as I wish to prioritize interactive
applications over system daemons and I think most probably do too.
It is based on OpenBSD 6.3 but might apply easily to later releases.
Please let me know if it is of any interest to you.
commit 1f4121df3ae31121d435571ffdbd93a20c1e8a07
Author: Thomas de Grivel <tho...@gmail.com>
Date: Mon Sep 3 21:52:37 2018 +0200
Add a $daemon_nice parameter.
If not overriden by the launched daemon the default nice value is 10.
See nice(1) for more details.
diff --git rc.d/rc.subr.orig rc.d/rc.subr
index 6c2f694..5f4fbe5 100644
--- rc.d/rc.subr.orig
+++ rc.d/rc.subr
@@ -49,6 +49,7 @@ _rc_write_runfile() {
cat >${_RC_RUNFILE} <<EOF
daemon_class=${daemon_class}
daemon_flags=${daemon_flags}
+daemon_nice=${daemon_nice}
daemon_rtable=${daemon_rtable}
daemon_timeout=${daemon_timeout}
daemon_user=${daemon_user}
@@ -170,7 +171,7 @@ _rc_parse_conf() {
[ -n "${FUNCS_ONLY}" ] && return
rc_start() {
- ${rcexec} "${daemon} ${daemon_flags}"
+ ${rcexec} "nice -n ${daemon_nice} ${daemon} ${daemon_flags}"
}
rc_check() {
@@ -288,6 +289,7 @@ _RC_RUNFILE=${_RC_RUNDIR}/${_name}
_rc_do _rc_parse_conf
eval _rcflags=\${${_name}_flags}
+eval _rcnice=\${${_name}_nice}
eval _rcrtable=\${${_name}_rtable}
eval _rcuser=\${${_name}_user}
eval _rctimeout=\${${_name}_timeout}
@@ -295,6 +297,7 @@ eval _rctimeout=\${${_name}_timeout}
# set default values; duplicated in rcctl(8)
getcap -f /etc/login.conf ${_name} 1>/dev/null 2>&1 && daemon_class=${_name} ||
daemon_class=daemon
+[ -z "${daemon_nice}" ] && daemon_nice=10
[ -z "${daemon_rtable}" ] && daemon_rtable=0
[ -z "${daemon_user}" ] && daemon_user=root
[ -z "${daemon_timeout}" ] && daemon_timeout=30
@@ -304,6 +307,7 @@ getcap -f /etc/login.conf ${_name} 1>/dev/null
2>&1 && daemon_class=${_name} ||
unset _rcflags
[ -n "${_rcflags}" ] && daemon_flags=${_rcflags}
+[ -n "${_rcnice}" ] && daemon_nice=${_rcnice}
[ -n "${_rcrtable}" ] && daemon_rtable=${_rcrtable}
[ -n "${_rcuser}" ] && daemon_user=${_rcuser}
[ -n "${_rctimeout}" ] && daemon_timeout=${_rctimeout}
@@ -315,7 +319,7 @@ if [ -n "${_RC_DEBUG}" ]; then
fi
readonly daemon_class
-unset _rcflags _rcrtable _rcuser _rctimeout
+unset _rcflags _rcnice _rcrtable _rcuser _rctimeout
pexp="${daemon}${daemon_flags:+ ${daemon_flags}}"
rcexec="su -l -c ${daemon_class} -s /bin/sh ${daemon_user} -c"
[ "${daemon_rtable}" -eq 0 ] ||
--
Thomas de Grivel
