mirror of
https://dev.iopsys.eu/feed/iopsys.git
synced 2025-12-10 07:44:50 +01:00
Added new package icgroupd, refs #2521
The icgroupd contains a simple shell script daemon and an procd enabled init script for configuring cgroups according to uci configuration and launching the daemon. The daemon will periodically look for new processes in the root cgroup and move them to sub-groups according to configuration.
This commit is contained in:
Mats Karrman
parent
482a88a65b
commit
8f63a74197
4 changed files with 263 additions and 0 deletions
46
icgroupd/Makefile
Normal file
46
icgroupd/Makefile
Normal file
|
|
@ -0,0 +1,46 @@
|
|||
#
|
||||
# Copyright (C) 2016 Inteno Broadband AB
|
||||
#
|
||||
# This is free software, licensed under the GNU General Public License v2.
|
||||
# See /LICENSE for more information.
|
||||
#
|
||||
|
||||
include $(TOPDIR)/rules.mk
|
||||
|
||||
PKG_NAME:=icgroupd
|
||||
PKG_VERSION:=1.0
|
||||
PKG_RELEASE:=0
|
||||
|
||||
PKG_LICENSE:=GPL-2.0
|
||||
PKG_LICENSE_FILES:=
|
||||
|
||||
PKG_MAINTAINER:=Inteno Broadband AB
|
||||
|
||||
include $(INCLUDE_DIR)/package.mk
|
||||
|
||||
define Package/icgroupd
|
||||
SECTION:=base
|
||||
CATEGORY:=Base system
|
||||
TITLE:=Inteno cgroup daemon
|
||||
DEPENDS:=+uci +busybox
|
||||
endef
|
||||
|
||||
define Package/icgroupd/description
|
||||
This package contains Intenos cgroup daemon and associated
|
||||
configuration and startup scripts.
|
||||
endef
|
||||
|
||||
define Build/Compile
|
||||
true
|
||||
endef
|
||||
|
||||
define Package/icgroupd/install
|
||||
$(INSTALL_DIR) $(1)/sbin $(1)/etc/init.d $(1)/etc/config
|
||||
|
||||
$(INSTALL_CONF) ./files/cgroups.config $(1)/etc/config/cgroups
|
||||
$(INSTALL_BIN) ./files/cgroups.init $(1)/etc/init.d/cgroups
|
||||
$(INSTALL_BIN) ./files/cgroupd $(1)/sbin/
|
||||
endef
|
||||
|
||||
$(eval $(call BuildPackage,icgroupd))
|
||||
|
||||
76
icgroupd/files/cgroupd
Executable file
76
icgroupd/files/cgroupd
Executable file
|
|
@ -0,0 +1,76 @@
|
|||
#!/bin/sh
|
||||
|
||||
CGBASEDIR=$1
|
||||
CGCONFIG=$2
|
||||
[ -n "$CGBASEDIR" -a -n "$CGCONFIG" ] || exit 1
|
||||
|
||||
[ -r /lib/functions.sh ] || exit 1
|
||||
. /lib/functions.sh
|
||||
|
||||
CGPROCMAP=/tmp/cgprocmap
|
||||
CGPERIOD=3s
|
||||
|
||||
DBGLOG=/tmp/cgroupd.log
|
||||
DEBUG=0
|
||||
|
||||
|
||||
add_to_procmap () {
|
||||
local name_grp=$1
|
||||
local name grp
|
||||
|
||||
name=$(echo $name_grp |awk -F= '{print $1}')
|
||||
grp=$(echo $name_grp |awk -F= '{print $2}')
|
||||
|
||||
echo "($name) $grp" >> $CGPROCMAP
|
||||
}
|
||||
|
||||
# Read configuration file and create process:group look-up table
|
||||
# in /tmp file
|
||||
read_config () {
|
||||
local enab
|
||||
|
||||
config_load $CGCONFIG
|
||||
|
||||
config_get enab cgroups enabled "1"
|
||||
[ $enab -eq 0 ] && exit 1
|
||||
|
||||
config_get CGDEFGROUP cgroups defgroup "_undef_"
|
||||
[ "$CGDEFGROUP" == "_undef_" ] && exit 1
|
||||
[ "$DEBUG" == "1" ] && echo "default $CGDEFGROUP" >> $DBGLOG
|
||||
|
||||
echo -n '' > $CGPROCMAP
|
||||
config_list_foreach procmap procmap add_to_procmap
|
||||
[ "$DEBUG" == "1" ] && cat $CGPROCMAP >> $DBGLOG
|
||||
}
|
||||
|
||||
# Move all process except init from cgroup root to cgroups according
|
||||
# to /tmp look-up table
|
||||
move_wild_procs () {
|
||||
local wild_procs=$(cat $CGBASEDIR/cgroup.procs)
|
||||
local pid name grp
|
||||
|
||||
for pid in $wild_procs; do
|
||||
|
||||
[ $pid -eq 1 ] && continue
|
||||
if [ -d /proc/$pid ]; then
|
||||
|
||||
name=$(awk '{print $2}' /proc/$pid/stat)
|
||||
grp=$(awk "\$1==\"$name\" {print \$2}" $CGPROCMAP)
|
||||
|
||||
[ "$grp" == "." ] && continue
|
||||
[ -n "$grp" ] || grp=$CGDEFGROUP
|
||||
|
||||
[ "$DEBUG" == "1" ] && \
|
||||
echo "Moving proc $pid $name to $grp" >> $DBGLOG
|
||||
echo $pid > $CGBASEDIR/$grp/cgroup.procs
|
||||
fi
|
||||
done
|
||||
}
|
||||
|
||||
|
||||
[ "$DEBUG" == "1" ] && echo "$0 started $(date)" >> $DBGLOG
|
||||
read_config
|
||||
while true; do
|
||||
move_wild_procs
|
||||
sleep $CGPERIOD
|
||||
done
|
||||
48
icgroupd/files/cgroups.config
Normal file
48
icgroupd/files/cgroups.config
Normal file
|
|
@ -0,0 +1,48 @@
|
|||
config cgroups cgroups
|
||||
option enabled 1
|
||||
option defgroup iopsys/normal
|
||||
|
||||
config cgroup _root_
|
||||
list option cpu.rt_runtime_us=50000
|
||||
list option memory.move_charge_at_immigrate=1
|
||||
|
||||
config cgroup iopsys
|
||||
list option cpu.shares=4096
|
||||
list option cpu.rt_runtime_us=40000
|
||||
list option memory.limit_in_bytes=-1
|
||||
list option memory.move_charge_at_immigrate=1
|
||||
|
||||
config cgroup iopsys_normal
|
||||
list option cpu.shares=1024
|
||||
list option cpu.rt_runtime_us=10000
|
||||
list option memory.limit_in_bytes=-1
|
||||
list option memory.move_charge_at_immigrate=1
|
||||
|
||||
config cgroup iopsys_high
|
||||
list option cpu.shares=4096
|
||||
list option cpu.rt_runtime_us=30000
|
||||
list option memory.limit_in_bytes=-1
|
||||
list option memory.move_charge_at_immigrate=1
|
||||
|
||||
config cgroup 3prt
|
||||
list option cpu.shares=1024
|
||||
list option cpu.rt_runtime_us=10000
|
||||
list option memory.limit_in_bytes=75M
|
||||
list option memory.move_charge_at_immigrate=1
|
||||
|
||||
config cgroup 3prt_normal
|
||||
list option cpu.shares=1024
|
||||
list option cpu.rt_runtime_us=2500
|
||||
list option memory.limit_in_bytes=75M
|
||||
list option memory.move_charge_at_immigrate=1
|
||||
|
||||
config cgroup 3prt_high
|
||||
list option cpu.shares=4096
|
||||
list option cpu.rt_runtime_us=7500
|
||||
list option memory.limit_in_bytes=75M
|
||||
list option memory.move_charge_at_immigrate=1
|
||||
|
||||
config procmap procmap
|
||||
list procmap kthreadd=.
|
||||
list procmap minidlna=3prt/normal
|
||||
|
||||
93
icgroupd/files/cgroups.init
Executable file
93
icgroupd/files/cgroups.init
Executable file
|
|
@ -0,0 +1,93 @@
|
|||
#!/bin/sh /etc/rc.common
|
||||
|
||||
START=01
|
||||
USE_PROCD=1
|
||||
PROCD_DEBUG=1
|
||||
NAME=cgroupd
|
||||
|
||||
CGBASEDIR=/sys/fs/cgroup
|
||||
CGCONFIG="cgroups"
|
||||
|
||||
DBGLOG=/tmp/cginit.log
|
||||
DEBUG=0
|
||||
|
||||
|
||||
cgroupinit_set_knob_value () {
|
||||
local knob_val=$1
|
||||
local dir=$2
|
||||
local knob val
|
||||
|
||||
knob=$(echo $knob_val |awk -F= '{print $1}')
|
||||
val=$(echo $knob_val |awk -F= '{print $2}')
|
||||
/bin/echo $val > $CGBASEDIR/$dir/$knob
|
||||
[ "$DEBUG" == "1" ] && \
|
||||
echo "/bin/echo $val > $CGBASEDIR/$dir/$knob (ret=$?)" >> $DBGLOG
|
||||
}
|
||||
|
||||
cgroupinit_create_group () {
|
||||
local cgrp=$1
|
||||
local dir
|
||||
|
||||
[ "$DEBUG" == "1" ] && echo "Create group $cgrp:" >> $DBGLOG
|
||||
if [ "$cgrp" == "_root_" ]; then
|
||||
dir=.
|
||||
else
|
||||
dir=$(echo $cgrp |tr '_' '/')
|
||||
|
||||
if [ ! -d $CGBASEDIR/$dir ]; then
|
||||
mkdir $CGBASEDIR/$dir
|
||||
[ "$DEBUG" == "1" ] && \
|
||||
echo "mkdir $CGBASEDIR/$dir (ret=$?)" >> $DBGLOG
|
||||
fi
|
||||
fi
|
||||
|
||||
config_list_foreach $cgrp option cgroupinit_set_knob_value $dir
|
||||
}
|
||||
|
||||
cgroupinit_configure_cgroups () {
|
||||
local enab defgrp
|
||||
|
||||
[ "$DEBUG" == "1" ] && echo "$0 started $(date)" >> $DBGLOG
|
||||
config_load $CGCONFIG
|
||||
|
||||
config_get enab cgroups enabled "1"
|
||||
[ $enab -eq 0 ] && return 1
|
||||
|
||||
config_get defgrp cgroups defgroup "_undef_"
|
||||
[ "$defgrp" == "_undef_" ] && return 1
|
||||
|
||||
if ! grep -q " $CGBASEDIR cgroup " /proc/mounts; then
|
||||
mount -t cgroup -o nodev,noexec,nosuid cgroup $CGBASEDIR
|
||||
[ $? -eq 0 ] || return 1
|
||||
fi
|
||||
|
||||
config_foreach cgroupinit_create_group cgroup
|
||||
return 0
|
||||
}
|
||||
|
||||
start_service () {
|
||||
cgroupinit_configure_cgroups
|
||||
[ $? -eq 0 ] || return
|
||||
|
||||
procd_open_instance
|
||||
procd_set_param command /sbin/cgroupd $CGBASEDIR $CGCONFIG
|
||||
procd_set_param respawn
|
||||
procd_close_instance
|
||||
}
|
||||
|
||||
stop_service () {
|
||||
local cgdir procs prc
|
||||
|
||||
for cgdir in $(find $CGBASEDIR -type d -mindepth 1 -depth); do
|
||||
procs=$(cat $cgdir/cgroup.procs)
|
||||
for prc in $procs; do
|
||||
echo $prc > $CGBASEDIR/cgroup.procs
|
||||
done
|
||||
rmdir $cgdir
|
||||
done
|
||||
}
|
||||
|
||||
service_triggers() {
|
||||
procd_add_reload_trigger $CGCONFIG
|
||||
}
|
||||
|
||||
Loading…
Add table
Reference in a new issue