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#!/bin/sh . /usr/lib/tuned/functions function ver_comp () { if [[ $1 == $2 ]] then return 0 fi local IFS=. local i ver1=($1) ver2=($2) # fill empty fields in ver1 with zeros for ((i=${#ver1[@]}; i<${#ver2[@]}; i++)) do ver1[i]=0 done for ((i=0; i<${#ver1[@]}; i++)) do if [[ -z ${ver2[i]} ]] then # fill empty fields in ver2 with zeros ver2[i]=0 fi if ((10#${ver1[i]} > 10#${ver2[i]})) then return 1 fi if ((10#${ver1[i]} < 10#${ver2[i]})) then return 2 fi done return 0 } function lve_ver_comp () { local current_lve_ver=$(echo $1 | awk -F "lve" '{print $2}' | awk -F ".el" '{print $1}') local supported_lve_ver=$2 ver_comp "${current_lve_ver}" "${supported_lve_ver}" if [[ $? == 0 || $? == 1 ]]; then return 0 else return 1 fi } start() { local dev_path local dev_name local rotational local elevator local vz_module if [ -e /proc/vz/vestat ]; then # CloudLinux profile settings aren't compatible with OpenVZ # set parameters for oom-killer if [ -e /proc/vz/oom_score_adj ]; then cat /etc/tuned-profiles-cloudlinux/oom-groups.conf > /proc/vz/oom_score_adj fi return 0 fi lve_ver_comp "$(uname -r)" "1.4.50" # minimal supported version for `vfs_cache_min_ratio` kernel param (see. LU-578) if [ $? == 0 ] && [ -f /proc/sys/vm/vfs_cache_min_ratio ]; then echo 0 > /proc/sys/vm/vfs_cache_min_ratio fi # disable tcache/tswap OpenVZ subsystems for vz_module in tcache tswap; do save_set_sys "active_module_${vz_module}" "/sys/module/${vz_module}/parameters/active" 'N' done # block devices configuration for dev_path in ${DISKS_SYS}; do dev_name=$(eval LANG=C /bin/basename "${dev_path}" 2>/dev/null) rotational=$(eval LANG=C /bin/cat "${dev_path}/queue/rotational" 2>/dev/null) if [ "${rotational}" -eq 1 ]; then elevator='deadline' else elevator='noop' fi set_elevator "${dev_path}/queue/scheduler" ${elevator} 2>/dev/null save_set_sys "nr_requests_${dev_name}" "${dev_path}/queue/nr_requests" '1024' 2>/dev/null done # disable hugepages save_set_sys 'transparent_hugepage_khugepaged_defrag' '/sys/kernel/mm/transparent_hugepage/khugepaged/defrag' '0' 2>/dev/null save_set_sys 'transparent_hugepage_defrag' '/sys/kernel/mm/transparent_hugepage/defrag' 'never' 2>/dev/null save_set_sys 'transparent_hugepage_enabled' '/sys/kernel/mm/transparent_hugepage/enabled' 'never' 2>/dev/null return 0 } stop() { local dev_path local dev_name local vz_module if [ -e /proc/vz/vestat ]; then # CloudLinux profile settings aren't compatible with OpenVZ return 0 fi # revert tcache/tswap OpenVZ subsystems state for vz_module in tcache tswap; do restore_sys "active_module_${vz_module}" "/sys/module/${vz_module}/parameters/active" done # revert block devices configuration for dev_path in ${DISKS_SYS}; do dev_name=$(eval LANG=C /bin/basename "${dev_path}" 2>/dev/null) restore_elevator "${dev_path}/queue/scheduler" 2>/dev/null restore_sys "nr_requests_${dev_name}" "${dev_path}/queue/nr_requests" 2>/dev/null done # revert hugepages configuration restore_sys 'transparent_hugepage_khugepaged_defrag' '/sys/kernel/mm/transparent_hugepage/khugepaged/defrag' 2>/dev/null restore_sys 'transparent_hugepage_defrag' '/sys/kernel/mm/transparent_hugepage/defrag' 2>/dev/null restore_sys 'transparent_hugepage_enabled' '/sys/kernel/mm/transparent_hugepage/enabled' 2>/dev/null return 0 } process $@