#!/bin/bash
jemalloc_ver=5.1.0
THREAD=$(grep 'processor' /proc/cpuinfo | sort -u | wc -l)
yum install bzip2
if [ ! -e "/usr/local/lib/libjemalloc.so" ]; then
    /usr/bin/wget https://mirrors.linyaohong.com/src/jemalloc-${jemalloc_ver}.tar.bz2
    tar xjf jemalloc-${jemalloc_ver}.tar.bz2
    cd jemalloc-$jemalloc_ver
    LDFLAGS="${LDFLAGS} -lrt" ./configure
    make -j ${THREAD} && make install
    unset LDFLAGS
    cd ..
    if [ -f "/usr/local/lib/libjemalloc.so" ]; then
         ln -s /usr/local/lib/libjemalloc.so.2 /usr/lib64/libjemalloc.so.1
         [ -z "`grep /usr/local/lib /etc/ld.so.conf.d/*.conf`" -a -z "`grep /usr/local/lib /etc/ld.so.conf`" ] && echo '/usr/local/lib' > /etc/ld.so.conf.d/local.conf
         ldconfig
         echo "jemalloc module installed successfully! "
         rm -rf jemalloc-${jemalloc_ver}
    else
        echo "jemalloc install failed, Please contact the author! "
        kill -9 $$
    fi
else
    echo  "libjemalloc.so is existing"
fi