| Current Path : /usr/bin/ |
Linux gator3171.hostgator.com 4.19.286-203.ELK.el7.x86_64 #1 SMP Wed Jun 14 04:33:55 CDT 2023 x86_64 |
| Current File : //usr/bin/ps_mysqld_helper |
#!/bin/bash
if [ -f /etc/redhat-release ]
then
SYSTEMD_ENV_FILE="/etc/sysconfig/mysql"
else
SYSTEMD_ENV_FILE="/etc/default/mysql"
fi
enable_thp() {
STATUS_THP_SYSTEM=0
if [ -f /sys/kernel/mm/transparent_hugepage/enabled ]; then
CONTENT_TRANSHP=$(</sys/kernel/mm/transparent_hugepage/enabled)
STATUS_THP_SYSTEM=$(echo $CONTENT_TRANSHP | grep -cv '\[never\]')
fi
if [ $STATUS_THP_SYSTEM = 1 ]
then
THP_CONF=$(grep -c "THP_SETTING=never" $SYSTEMD_ENV_FILE)
if [ $THP_CONF = 1 ]
then
if test -f /sys/kernel/mm/transparent_hugepage/defrag; then
echo never > /sys/kernel/mm/transparent_hugepage/defrag
fi
if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
echo never > /sys/kernel/mm/transparent_hugepage/enabled
fi
if [ $? -ne 0 ]; then
exit 1
fi
fi
fi
}
enable_jemalloc(){
JEMALLOC_LOCATION=0
for libjemall in "/usr/lib64" "/usr/lib/x86_64-linux-gnu" "/usr/lib"; do
if [ -r "${libjemall}/libjemalloc.so.1" ]; then
JEMALLOC_LOCATION="${libjemall}/libjemalloc.so.1"
break
fi
done
if [ "x${JEMALLOC_LOCATION}" != "x0" ]; then
STATUS_JEMALLOC_CONFIG=$(grep -c -e "LD_PRELOAD=.*libjemalloc.so.1" ${SYSTEMD_ENV_FILE})
if [ $STATUS_JEMALLOC_CONFIG = 0 ]; then
echo "LD_PRELOAD=${JEMALLOC_LOCATION}" >> ${SYSTEMD_ENV_FILE}
fi
fi
}
#main
enable_thp
enable_jemalloc