安装 jemalloc for mysql

前言：

Jemalloc 是BSD的提供的内存分配管理

安装依赖

$ yum install -y gcc

$ yum  install autoconf -y

安装 jemalloc

$ git clone https://github.com/jemalloc/jemalloc

$ cd jemalloc

$./autogen.sh

$ ./configure 

$ make 

$ make install

/usr/bin/install -c -d /usr/local/bin
/usr/bin/install -c -m 755 bin/jemalloc-config /usr/local/bin
/usr/bin/install -c -m 755 bin/jemalloc.sh /usr/local/bin
/usr/bin/install -c -m 755 bin/jeprof /usr/local/bin
/usr/bin/install -c -d /usr/local/include/jemalloc
/usr/bin/install -c -m 644 include/jemalloc/jemalloc.h /usr/local/include/jemalloc
/usr/bin/install -c -d /usr/local/lib
/usr/bin/install -c -m 755 lib/libjemalloc.so.2 /usr/local/lib
ln -sf libjemalloc.so.2 /usr/local/lib/libjemalloc.so
/usr/bin/install -c -d /usr/local/lib
/usr/bin/install -c -m 755 lib/libjemalloc.a /usr/local/lib
/usr/bin/install -c -m 755 lib/libjemalloc_pic.a /usr/local/lib
/usr/bin/install -c -d /usr/local/lib/pkgconfig
/usr/bin/install -c -m 644 jemalloc.pc /usr/local/lib/pkgconfig
Missing xsltproc.  doc/jemalloc.html not (re)built.
Missing xsltproc.  doc/jemalloc.3 not (re)built.
/usr/bin/install -c -d /usr/local/share/doc/jemalloc
/usr/bin/install -c -m 644 doc/jemalloc.html /usr/local/share/doc/jemalloc
/usr/bin/install -c -d /usr/local/share/man/man3
/usr/bin/install -c -m 644 doc/jemalloc.3 /usr/local/share/man/man3


#默认安装目录：
PREFIX             : /usr/local
BINDIR             : /usr/local/bin
DATADIR            : /usr/local/share
INCLUDEDIR         : /usr/local/include
LIBDIR             : /usr/local/lib
MANDIR             : /usr/local/share/man

配置mysqld使用jemalloc，需要将配置写到[mysqld_safe] section

$ vim /etc/my.cnf

[mysqld_safe]
malloc-lib=/usr/local/lib/libjemalloc.so

直接使用sqld启动

export LD_PRELOAD=/usr/local/lib/libjemalloc.so

来源：oschina

链接：https://my.oschina.net/u/3662885/blog/3051665

标签

jemalloc