WebSVN – configs – Blame – /firewall/etc/tune-profiles/functions

Rev	Author	Line No.	Line
3	-	1	`# vim: set syn=sh :`
		2	`#`
		3	`# This script contains functions which can be useful in ktune profile scripts.`
		4	`#`
		5
		6	`#`
		7	`# DISK tuning`
		8	`#`
		9
		10	`DISKS_DEV="$(command ls -d1 /dev/[shv]d*[a-z] 2>/dev/null)"`
33	-	11	`DISKS_SYS="$(command ls -d1 /sys/block/{sd,cciss,dm-,vd,dasd,xvd}* 2>/dev/null)"`
3	-	12
		13	`# SATA Aggressive Link Power Management`
		14	`# usage: set_disk_alpm policy`
		15	`set_disk_alpm() {`
		16	`policy=$1`
		17
		18	`for host in /sys/class/scsi_host/*; do`
		19	`if [ -f $host/ahci_port_cmd ]; then`
		20	port_cmd=`cat $host/ahci_port_cmd`;
		21	`if [ $((0x$port_cmd & 0x240000)) = 0 -a -f $host/link_power_management_policy ]; then`
		22	`echo $policy >$host/link_power_management_policy;`
		23	`else`
		24	`echo "max_performance" >$host/link_power_management_policy;`
		25	`fi`
		26	`fi`
		27	`done`
		28	`}`
		29
		30	`# usage: set_disk_apm level`
		31	`set_disk_apm() {`
		32	`level=$1`
		33	`for disk in $DISKS_DEV; do`
		34	`hdparm -B $level $disk &>/dev/null`
		35	`done`
		36	`}`
		37
		38	`# usage: set_disk_spindown level`
		39	`set_disk_spindown() {`
		40	`level=$1`
		41	`for disk in $DISKS_DEV; do`
		42	`hdparm -S $level $disk &>/dev/null`
		43	`done`
		44	`}`
		45
		46	`DISK_READAHEAD_SAVE="/var/run/tuned/disk_readahead.save"`
		47
		48	`# usage: multiply_disk_readahead by`
		49	`multiply_disk_readahead() {`
		50	`by=$1`
		51	`rm -f "$DISK_READAHEAD_SAVE"`
		52
		53	`# float multiplication not supported in bash`
		54	`# bc might not be installed, python is available for sure`
		55
		56	`for disk in $DISKS_SYS; do`
		57	`control="${disk}/queue/read_ahead_kb"`
		58	`old=$(cat $control)`
		59	`new=$(echo "print int($old*$by)" \| python)`
		60	`echo "echo $old > $control" >> "$DISK_READAHEAD_SAVE" 2>/dev/null`
		61	`(echo $new > $control) &>/dev/null`
		62	`done`
		63	`}`
		64
		65	`restore_disk_readahead() {`
		66	`if [ -r "$DISK_READAHEAD_SAVE" ]; then`
		67	`/bin/sh "$DISK_READAHEAD_SAVE" &>/dev/null`
		68	`rm -f "$DISK_READAHEAD_SAVE"`
		69	`fi`
		70	`}`
		71
		72	`# usage: remount_disk options partition1 partition2 ...`
		73	`remount_partitions() {`
		74	`options=$1`
		75	`shift`
		76
		77	`for partition in $@; do`
		78	`mount -o remount,$options $partition`
		79	`done`
		80	`}`
		81
		82	`_devices_no_write_back_cache() {`
		83	`for device in $@; do`
		84	`grep -q "write back" /sys/block/"$device"/device/scsi_disk/*/cache_type 2>/dev/null && return 1`
		85	`done`
		86	`return 0`
		87	`}`
		88
		89	`_disk_barriers_remount() {`
		90	`mount_options="$1"`
		91
		92	`lsblk -lno TYPE,KNAME,MOUNTPOINT \| \`
		93	`awk '`
		94	`{ type=$1; name=$2; mountpoint=$3; }`
		95
		96	`(type == "disk") {`
		97	`device=name`
		98	`next`
		99	`}`
		100
		101	`(mountpoint ~ /^\// && mountpoint != "/" && mountpoint != "/boot") {`
		102	`mountpoints[mountpoint] = mountpoints[mountpoint] " " device`
		103	`}`
		104
		105	`END {`
		106	`for (mountpoint in mountpoints) {`
		107	`print mountpoint, mountpoints[mountpoint]`
		108	`}`
		109	`}`
		110	`' \| \`
		111	`while read mountpoint devices; do`
		112	`if _devices_no_write_back_cache $devices; then`
		113	`mount -o remount,"$mount_options" "$mountpoint" >/dev/null 2>&1`
		114	`fi`
		115	`done`
		116	`}`
		117
		118	`# remounts all non-root and non-boot partitions with nobarrier option`
		119	`# SCSI drives with write back cache are skipped`
		120	`disable_disk_barriers() {`
		121	`_disk_barriers_remount nobarrier`
		122	`}`
		123
		124	`# see: disable_disk_barriers`
		125	`enable_disk_barriers() {`
		126	`_disk_barriers_remount barrier`
		127	`}`
		128
		129	`#`
		130	`# CPU tuning`
		131	`#`
		132
		133	`CPUSPEED_SAVE_FILE="/var/run/tuned/ktune-cpuspeed.save"`
		134	`CPUSPEED_ORIG_GOV="/var/run/tuned/ktune-cpuspeed-governor-%s.save"`
		135	`CPUSPEED_STARTED="/var/run/tuned/ktune-cpuspeed-started"`
		136	`CPUSPEED_CFG="/etc/sysconfig/cpuspeed"`
		137	`CPUSPEED_INIT="/etc/init.d/cpuspeed"`
95	-	138	`# do not use cpuspeed`
		139	`CPUSPEED_USE="0"`
3	-	140	`CPUS="$(ls -d1 /sys/devices/system/cpu/cpu* \| sed 's;^.*/;;' \| grep "cpu[0-9]\+")"`
		141
		142	`# set CPU governor setting and store the old settings`
		143	`# usage: set_cpu_governor governor`
		144	`set_cpu_governor() {`
		145	`governor=$1`
		146
95	-	147	`# always patch cpuspeed configuration if exists, if it doesn't exist and is enabled,`
		148	`# explictly disable it with hint`
3	-	149	`if [ -e $CPUSPEED_INIT ]; then`
		150	`if [ ! -e $CPUSPEED_SAVE_FILE -a -e $CPUSPEED_CFG ]; then`
		151	`cp -p $CPUSPEED_CFG $CPUSPEED_SAVE_FILE`
		152	`sed -e 's/^GOVERNOR=.*/GOVERNOR='$governor'/g' $CPUSPEED_SAVE_FILE > $CPUSPEED_CFG`
		153	`fi`
95	-	154	`else`
		155	`if [ "$CPUSPEED_USE" = "1" ]; then`
		156	`echo >&2`
		157	`echo "Suggestion: install 'cpuspeed' package to get best tuning results." >&2`
		158	`echo "Falling back to sysfs control." >&2`
		159	`echo >&2`
		160	`fi`
3	-	161
95	-	162	`CPUSPEED_USE="0"`
		163	`fi`
		164
		165	`if [ "$CPUSPEED_USE" = "1" ]; then`
3	-	166	`service cpuspeed status &> /dev/null`
		167	`[ $? -eq 3 ] && touch $CPUSPEED_STARTED \|\| rm -f $CPUSPEED_STARTED`
		168
		169	`service cpuspeed restart &> /dev/null`
		170
95	-	171	`# direct change using sysfs`
3	-	172	`elif [ -e /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ]; then`
		173
		174	`for cpu in $CPUS; do`
		175	`gov_file=/sys/devices/system/cpu/$cpu/cpufreq/scaling_governor`
		176	`save_file=$(printf $CPUSPEED_ORIG_GOV $cpu)`
		177	`rm -f $save_file`
		178	`if [ -e $gov_file ]; then`
		179	`cat $gov_file > $save_file`
		180	`echo $governor > $gov_file`
		181	`fi`
		182	`done`
		183	`fi`
		184	`}`
		185
		186	`# re-enable previous CPU governor settings`
		187	`# usage: restore_cpu_governor`
		188	`restore_cpu_governor() {`
		189	`if [ -e $CPUSPEED_INIT ]; then`
		190	`if [ -e $CPUSPEED_SAVE_FILE ]; then`
		191	`cp -fp $CPUSPEED_SAVE_FILE $CPUSPEED_CFG`
		192	`rm -f $CPUSPEED_SAVE_FILE`
		193	`fi`
		194
95	-	195	`if [ "$CPUSPEED_USE" = "1" ]; then`
		196	`if [ -e $CPUSPEED_STARTED ]; then`
		197	`service cpuspeed stop &> /dev/null`
		198	`else`
		199	`service cpuspeed restart &> /dev/null`
		200	`fi`
		201	`fi`
3	-	202	`if [ -e $CPUSPEED_STARTED ]; then`
		203	`rm -f $CPUSPEED_STARTED`
		204	`fi`
95	-	205	`else`
		206	`CPUSPEED_USE="0"`
		207	`fi`
		208
		209	`if [ "$CPUSPEED_USE" != "1" -a -e /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ]; then`
3	-	210	`for cpu in $CPUS; do`
		211	`cpufreq_dir=/sys/devices/system/cpu/$cpu/cpufreq`
		212	`save_file=$(printf $CPUSPEED_ORIG_GOV $cpu)`
		213
		214	`if [ -e $cpufreq_dir/scaling_governor ]; then`
		215	`if [ -e $save_file ]; then`
		216	`cat $save_file > $cpufreq_dir/scaling_governor`
		217	`rm -f $save_file`
		218	`else`
		219	`echo userspace > $cpufreq_dir/scaling_governor`
		220	`cat $cpufreq_dir/cpuinfo_max_freq > $cpufreq_dir/scaling_setspeed`
		221	`fi`
		222	`fi`
		223	`done`
		224	`fi`
		225	`}`
		226
		227	`_cpu_multicore_powersave() {`
		228	`value=$1`
		229	`[ -e /sys/devices/system/cpu/sched_mc_power_savings ] && echo $value > /sys/devices/system/cpu/sched_mc_power_savings`
		230	`}`
		231
		232	`# enable multi core power savings for low wakeup systems`
		233	`enable_cpu_multicore_powersave() {`
		234	`_cpu_multicore_powersave 1`
		235	`}`
		236
		237	`disable_cpu_multicore_powersave() {`
		238	`_cpu_multicore_powersave 0`
		239	`}`
		240
		241	`#`
		242	`# MEMORY tuning`
		243	`#`
		244
		245	`THP_ENABLE="/sys/kernel/mm/redhat_transparent_hugepage/enabled"`
		246	`THP_SAVE="/var/run/tuned/ktune-thp.save"`
		247
		248	`[ -e "$THP_ENABLE" ] \|\| THP_ENABLE="/sys/kernel/mm/transparent_hugepage/enabled"`
		249
		250	`set_transparent_hugepages() {`
		251	`if [ -e $THP_ENABLE ]; then`
		252	`cut -f2 -d'[' $THP_ENABLE \| cut -f1 -d']' > $THP_SAVE`
		253	`(echo "$1" > $THP_ENABLE) &> /dev/null`
		254	`fi`
		255	`}`
		256
		257	`restore_transparent_hugepages() {`
		258	`if [ -e $THP_SAVE ]; then`
		259	`(echo $(cat $THP_SAVE) > $THP_ENABLE) &> /dev/null`
		260	`rm -f $THP_SAVE`
		261	`fi`
		262	`}`
		263
		264	`#`
		265	`# WIFI tuning`
		266	`#`
		267
		268	`# usage: _wifi_set_power_level level`
		269	`_wifi_set_power_level() {`
		270	`# 0 auto, PM enabled`
		271	`# 1-5 least savings and lowest latency - most savings and highest latency`
		272	`# 6 disable power savings`
		273	`level=$1`
		274
		275	`# apply the settings using iwpriv`
		276	`ifaces=$(cat /proc/net/wireless \| grep -v '\|' \| sed 's@^ $[^:]$:.*@\1@')`
		277	`for iface in $ifaces; do`
		278	`iwpriv $iface set_power $level`
		279	`done`
		280
		281	`# some adapters may relay on sysfs`
		282	`for i in /sys/bus/pci/devices/*/power_level; do`
		283	`(echo $level > $i) &> /dev/null`
		284	`done`
		285	`}`
		286
		287	`enable_wifi_powersave() {`
		288	`_wifi_set_power_level 5`
		289	`}`
		290
		291	`disable_wifi_powersave() {`
		292	`_wifi_set_power_level 0`
		293	`}`
		294
		295	`#`
		296	`# BLUETOOTH tuning`
		297	`#`
		298
		299	`disable_bluetooth() {`
		300	`hciconfig hci0 down >/dev/null 2>&1`
		301	`lsmod \| grep -q btusb && rmmod btusb`
		302	`}`
		303
		304	`enable_bluetooth() {`
		305	`modprobe btusb`
		306	`hciconfig hci0 up >/dev/null 2>&1`
		307	`}`
		308
		309	`#`
		310	`# USB tuning`
		311	`#`
		312
		313	`_usb_autosuspend() {`
		314	`value=$1`
		315	`for i in /sys/bus/usb/devices/*/power/autosuspend; do echo $value > $i; done &> /dev/null`
		316	`}`
		317
		318	`enable_usb_autosuspend() {`
		319	`_usb_autosuspend 1`
		320	`}`
		321
		322	`disable_usb_autosuspend() {`
		323	`_usb_autosuspend 0`
		324	`}`
		325
		326	`#`
		327	`# SOUND CARDS tuning`
		328	`#`
		329
		330	`_snd_ac97_powersave() {`
		331	`value=$1`
		332	`[ -e /sys/module/snd_ac97_codec/parameters/power_save ] && echo $value > /sys/module/snd_ac97_codec/parameters/power_save`
		333	`}`
		334
		335	`enable_snd_ac97_powersave() {`
		336	`_snd_ac97_powersave Y`
		337	`}`
		338
		339	`disable_snd_ac97_powersave() {`
		340	`_snd_ac97_powersave N`
		341	`}`
		342
		343	`#`
		344	`# CD DRIVES tuning`
		345	`#`
		346
		347	`_cd_polling() {`
		348	`[ "$1" == "1" ] && opts=--enable-polling \|\| opts=`
		349
		350	`cddrives=$(command ls -1 /dev/scd* 2>/dev/null)`
		351	`for i in $cddrives; do hal-disable-polling $opts --device $(readlink -f $i); done &>/dev/null`
		352	`}`
		353
		354	`enable_cd_polling() {`
		355	`_cd_polling 1`
		356	`}`
		357
		358	`disable_cd_polling() {`
		359	`_cd_polling 0`
		360	`}`
		361
		362	`#`
		363	`# SOFTWARE tuning`
		364	`#`
		365
		366	`RSYSLOG_CFG="/etc/rsyslog.conf"`
		367	`RSYSLOG_SAVE="/var/run/tuned/ktune-cpuspeed.save"`
		368
		369	`disable_logs_syncing() {`
		370	`cp -p $RSYSLOG_CFG $RSYSLOG_SAVE`
		371	`sed -i 's/ \/var\/log/-\/var\/log/' $RSYSLOG_CFG`
		372	`}`
		373
		374	`restore_logs_syncing() {`
		375	`mv $RSYSLOG_SAVE $RSYSLOG_CFG`
		376	`}`
		377
		378	`#`
		379	`# HARDWARE SPECIFIC tuning`
		380	`#`
		381
		382	`# Asus EEE with Intel Atom`
		383	`_eee_fsb_control() {`
		384	`value=$1`
		385	`if [ -e /sys/devices/platform/eeepc/she ]; then`
		386	`echo $value > /sys/devices/platform/eeepc/she`
		387	`elif [ -e /sys/devices/platform/eeepc/cpufv ]; then`
		388	`echo $value > /sys/devices/platform/eeepc/cpufv`
		389	`fi`
		390	`}`
		391
		392	`eee_set_reduced_fsb() {`
		393	`_eee_fsb_control 2`
		394	`}`
		395
		396	`eee_set_normal_fsb() {`
		397	`_eee_fsb_control 1`
		398	`}`
		399
		400	`#`
		401	`# KTUNE ACTION PROCESSING`
		402	`#`
		403
		404	`error_not_implemented() {`
		405	`echo "tuned: ktune script function '$1' is not implemented." >&2`
		406	`}`
		407
		408	`# implicit actions, will be used if not provided by profile script:`
		409	`#`
		410	`# * start must be implemented`
		411	`# * stop must be implemented`
		412	`# * reload runs start`
		413	`# * restart runs stop + start`
		414	`# * status returns 0`
		415
		416	`start() {`
		417	`error_not_implemented start`
		418	`return 16`
		419	`}`
		420
		421	`stop() {`
		422	`error_not_implemented stop`
		423	`return 16`
		424	`}`
		425
		426	`reload() {`
		427	`start`
		428	`return $?`
		429	`}`
		430
		431	`restart() {`
		432	`stop && start`
		433	`return $?`
		434	`}`
		435
		436	`status() {`
		437	`return 0`
		438	`}`
		439
		440	`# main processing`
		441
		442	`process() {`
		443	`VAR_SUBSYS_KTUNE="/var/lock/subsys/ktune"`
95	-	444	`ARG="$1"`
		445	`shift`
3	-	446
95	-	447	`case "$ARG" in`
3	-	448	`start)`
		449	`[ -f "$VAR_SUBSYS_KTUNE" ] && exit 0`
		450	`start`
		451	`RETVAL=$?`
		452	`;;`
		453	`stop)`
		454	`[ -f "$VAR_SUBSYS_KTUNE" ] \|\| exit 0`
95	-	455	`stop "$@"`
3	-	456	`RETVAL=$?`
		457	`;;`
		458	`reload)`
		459	`[ -f "$VAR_SUBSYS_KTUNE" ] && reload`
		460	`RETVAL=$?`
		461	`;;`
		462	`restart\|force-reload)`
		463	`[ -f "$VAR_SUBSYS_KTUNE" ] && restart`
		464	`RETVAL=$?`
		465	`;;`
		466	`condrestart\|try-restart)`
		467	`[ -f "$VAR_SUBSYS_KTUNE" ] \|\| exit 0`
		468	`restart`
		469	`RETVAL=$?`
		470	`;;`
		471	`status)`
		472	`status`
		473	`RETVAL=$?`
		474	`;;`
		475	`*)`
		476	`echo $"Usage: $0 {start\|stop\|restart\|condrestart\|status}"`
		477	`RETVAL=2`
		478	`;;`
		479	`esac`
		480
		481	`exit $RETVAL`
		482	`}`

Subversion Repositories configs

(root)/firewall/etc/tune-profiles/functions – Rev 95