系统Linux centos

MySQL 8.0

内存占用如下 输入命令top

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND

25495 mysql 20 0 1909952 587300 17840 S 0.3 7.3 68:02.30 mysqld

31831 root 20 0 4724132 476872 15256 S 0.0 6.0 21:38.07 java

477 root 20 0 67768 23968 23656 S 0.0 0.3 0:12.82 systemd-journal

1457 root 20 0 800072 21996 5584 S 0.0 0.3 117:26.94 exe

1046 root 20 0 574200 14108 816 S 0.0 0.2 6:19.95 tuned

MySQL 占用了很多内存

查看my.cnf配置

mysql --help | grep 'Default options' -A 1

cat /etc/my.cnf

配置如下

# For advice on how to change settings please see

# http://dev.mysql.com/doc/refman/8.0/en/server-configuration-defaults.html

[mysqld]

#

# Remove leading # and set to the amount of RAM for the most important data

# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.

innodb_buffer_pool_size = 128M

#

# Remove the leading "# " to disable binary logging

# Binary logging captures changes between backups and is enabled by

# default. It's default setting is log_bin=binlog

# disable_log_bin

#

# Remove leading # to set options mainly useful for reporting servers.

# The server defaults are faster for transactions and fast SELECTs.

# Adjust sizes as needed, experiment to find the optimal values.

# join_buffer_size = 128M

# sort_buffer_size = 2M

# read_rnd_buffer_size = 2M

#

# Remove leading # to revert to previous value for default_authentication_plugin,

# this will increase compatibility with older clients. For background, see:

# https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html#sysvar_default_authentication_plugin

# default-authentication-plugin=mysql_native_password

datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid

似乎没有什么问题

分析MySQL 内存 命令 加MySQL进程ID

pmap -d 25495

信息如下

[root@CentOS ~]# pmap -d 25495

25495: /usr/sbin/mysqld

Address Kbytes Mode Offset Device Mapping

0000000000400000 49676 r-x-- 0000000000000000 0fd:00001 mysqld

0000000003483000 1288 r---- 0000000003082000 0fd:00001 mysqld

00000000035c5000 3592 rw--- 00000000031c4000 0fd:00001 mysqld

0000000003947000 1188 rw--- 0000000000000000 000:00000 [ anon ]

0000000004fce000 13532 rw--- 0000000000000000 000:00000 [ anon ]

00007f833e1bf000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833e1c0000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833e207000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833e208000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833e34f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833e350000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833e497000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833e498000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833e6df000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833e6e0000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833e727000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833e728000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833e96f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833e970000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833e9b7000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833e9b8000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833ec07000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833ec08000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833ec4f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833ec50000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833ec97000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833ec98000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833ecdf000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833ece0000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833ed27000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833ed28000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833ed6f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833ed70000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833edb7000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833edb8000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f833f7ff000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f833f800000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f8340000000 10300 rw--- 0000000000000000 000:00000 [ anon ]

00007f8340a0f000 55236 ----- 0000000000000000 000:00000 [ anon ]

00007f8344000000 21120 rw--- 0000000000000000 000:00000 [ anon ]

00007f83454a0000 44416 ----- 0000000000000000 000:00000 [ anon ]

00007f8348000000 4468 rw--- 0000000000000000 000:00000 [ anon ]

00007f834845d000 61068 ----- 0000000000000000 000:00000 [ anon ]

00007f834c000000 34748 rw--- 0000000000000000 000:00000 [ anon ]

00007f834e1ef000 30788 ----- 0000000000000000 000:00000 [ anon ]

00007f8350000000 6516 rw--- 0000000000000000 000:00000 [ anon ]

00007f835065d000 59020 ----- 0000000000000000 000:00000 [ anon ]

00007f8354000000 8964 rw--- 0000000000000000 000:00000 [ anon ]

00007f83548c1000 56572 ----- 0000000000000000 000:00000 [ anon ]

00007f8358000000 9636 rw--- 0000000000000000 000:00000 [ anon ]

00007f8358969000 55900 ----- 0000000000000000 000:00000 [ anon ]

00007f835c000000 9468 rw--- 0000000000000000 000:00000 [ anon ]

00007f835c93f000 56068 ----- 0000000000000000 000:00000 [ anon ]

00007f8360000000 7876 rw--- 0000000000000000 000:00000 [ anon ]

00007f83607b1000 57660 ----- 0000000000000000 000:00000 [ anon ]

00007f8364000000 5596 rw--- 0000000000000000 000:00000 [ anon ]

00007f8364577000 59940 ----- 0000000000000000 000:00000 [ anon ]

00007f8368000000 7208 rw--- 0000000000000000 000:00000 [ anon ]

00007f836870a000 58328 ----- 0000000000000000 000:00000 [ anon ]

00007f836c000000 9516 rw--- 0000000000000000 000:00000 [ anon ]

00007f836c94b000 56020 ----- 0000000000000000 000:00000 [ anon ]

00007f837001e000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837001f000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8370066000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8370067000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83700ae000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83700af000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83700f6000 1024 rw--- 0000000000000000 000:00000 [ anon ]

00007f83701f6000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83701f7000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f837023e000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837023f000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8370386000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8370387000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83703ce000 2048 rw--- 0000000000000000 000:00000 [ anon ]

00007f83705ce000 1024 rw--- 0000000000000000 000:00000 [ anon ]

00007f83706ce000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83706cf000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f8370ecf000 2048 rw--- 0000000000000000 000:00000 [ anon ]

00007f83710cf000 2048 rw--- 0000000000000000 000:00000 [ anon ]

00007f83712cf000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83712d0000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371317000 2048 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371517000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371518000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f837155f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371560000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83715a7000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83715a8000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83715ef000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83715f0000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371637000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371638000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f837167f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371680000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83716c7000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83716c8000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f837170f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371710000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371757000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371758000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f837179f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83717a0000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83717e7000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83717e8000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f837182f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371830000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371877000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371878000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83718bf000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83718c0000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371907000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371908000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f837194f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371950000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371997000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371998000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83719df000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83719e0000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371a27000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371a28000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371a6f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371a70000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371ab7000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371ab8000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371aff000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371b00000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371b47000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371b48000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371b8f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371b90000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371bd7000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8371bd8000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371c1f000 1024 rw--- 0000000000000000 000:00000 [ anon ]

00007f8371d1f000 60 r-x-- 0000000000000000 0fd:00001 libbz2.so.1.0.6

00007f8371d2e000 2044 ----- 000000000000f000 0fd:00001 libbz2.so.1.0.6

00007f8371f2d000 4 r---- 000000000000e000 0fd:00001 libbz2.so.1.0.6

00007f8371f2e000 4 rw--- 000000000000f000 0fd:00001 libbz2.so.1.0.6

00007f8371f2f000 148 r-x-- 0000000000000000 0fd:00001 liblzma.so.5.2.2

00007f8371f54000 2044 ----- 0000000000025000 0fd:00001 liblzma.so.5.2.2

00007f8372153000 4 r---- 0000000000024000 0fd:00001 liblzma.so.5.2.2

00007f8372154000 4 rw--- 0000000000025000 0fd:00001 liblzma.so.5.2.2

00007f8372155000 92 r-x-- 0000000000000000 0fd:00001 libelf-0.176.so

00007f837216c000 2044 ----- 0000000000017000 0fd:00001 libelf-0.176.so

00007f837236b000 4 r---- 0000000000016000 0fd:00001 libelf-0.176.so

00007f837236c000 4 rw--- 0000000000017000 0fd:00001 libelf-0.176.so

00007f837236d000 16 r-x-- 0000000000000000 0fd:00001 libattr.so.1.1.0

00007f8372371000 2044 ----- 0000000000004000 0fd:00001 libattr.so.1.1.0

00007f8372570000 4 r---- 0000000000003000 0fd:00001 libattr.so.1.1.0

00007f8372571000 4 rw--- 0000000000004000 0fd:00001 libattr.so.1.1.0

00007f8372572000 312 r-x-- 0000000000000000 0fd:00001 libdw-0.176.so

00007f83725c0000 2048 ----- 000000000004e000 0fd:00001 libdw-0.176.so

00007f83727c0000 8 r---- 000000000004e000 0fd:00001 libdw-0.176.so

00007f83727c2000 4 rw--- 0000000000050000 0fd:00001 libdw-0.176.so

00007f83727c3000 16 r-x-- 0000000000000000 0fd:00001 libcap.so.2.22

00007f83727c7000 2044 ----- 0000000000004000 0fd:00001 libcap.so.2.22

00007f83729c6000 4 r---- 0000000000003000 0fd:00001 libcap.so.2.22

00007f83729c7000 4 rw--- 0000000000004000 0fd:00001 libcap.so.2.22

00007f83729c8000 72 r-x-- 0000000000000000 0fd:00001 libnss_myhostname.so.2

00007f83729da000 2044 ----- 0000000000012000 0fd:00001 libnss_myhostname.so.2

00007f8372bd9000 12 r---- 0000000000011000 0fd:00001 libnss_myhostname.so.2

00007f8372bdc000 4 rw--- 0000000000014000 0fd:00001 libnss_myhostname.so.2

00007f8372bdd000 24 r-x-- 0000000000000000 0fd:00001 libnss_dns-2.17.so

00007f8372be3000 2044 ----- 0000000000006000 0fd:00001 libnss_dns-2.17.so

00007f8372de2000 4 r---- 0000000000005000 0fd:00001 libnss_dns-2.17.so

00007f8372de3000 4 rw--- 0000000000006000 0fd:00001 libnss_dns-2.17.so

00007f8372de4000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8372de5000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f83735e5000 100 r-x-- 0000000000000000 0fd:00001 component_validate_password.so

00007f83735fe000 2044 ----- 0000000000019000 0fd:00001 component_validate_password.so

00007f83737fd000 4 r---- 0000000000018000 0fd:00001 component_validate_password.so

00007f83737fe000 4 rw--- 0000000000019000 0fd:00001 component_validate_password.so

00007f83737ff000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8373800000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f8374000000 5184 rw--- 0000000000000000 000:00000 [ anon ]

00007f8374510000 60352 ----- 0000000000000000 000:00000 [ anon ]

00007f8378017000 48 r-x-- 0000000000000000 0fd:00001 libnss_files-2.17.so

00007f8378023000 2044 ----- 000000000000c000 0fd:00001 libnss_files-2.17.so

00007f8378222000 4 r---- 000000000000b000 0fd:00001 libnss_files-2.17.so

00007f8378223000 4 rw--- 000000000000c000 0fd:00001 libnss_files-2.17.so

00007f8378224000 24 rw--- 0000000000000000 000:00000 [ anon ]

00007f837822a000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837822b000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f8378a2b000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8378a2c000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837922c000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837922d000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f8379a2d000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8379a2e000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837a22e000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837a22f000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837aa2f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837aa30000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837b230000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837b231000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837ba31000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837ba32000 11012 rw--- 0000000000000000 000:00000 [ anon ]

00007f837c4f3000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837c4f4000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837ccf4000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837ccf5000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837d4f5000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837d4f6000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837dcf6000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837dcf7000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837e4f7000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837e4f8000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837ecf8000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837ecf9000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837f4f9000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837f4fa000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f837fcfa000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f837fcfb000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f83804fb000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83804fc000 49164 rw--- 0000000000000000 000:00000 [ anon ]

00007f83834ff000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8383500000 142336 rw--- 0000000000000000 000:00000 [ anon ]

00007f838c000000 9808 rw--- 0000000000000000 000:00000 [ anon ]

00007f838c994000 55728 ----- 0000000000000000 000:00000 [ anon ]

00007f839001b000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f839001c000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8390063000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8390064000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83900ab000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83900ac000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83900f3000 1024 rw--- 0000000000000000 000:00000 [ anon ]

00007f83901f3000 6168 rw--- 0000000000000000 000:00000 [ anon ]

00007f83907f9000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83907fa000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f8390ffa000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8390ffb000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f83917fb000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83917fc000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f8391ffc000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8391ffd000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f83927fd000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83927fe000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f8392ffe000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8392fff000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f83937ff000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8393800000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f8394000000 15508 rw--- 0000000000000000 000:00000 [ anon ]

00007f8394f25000 50028 ----- 0000000000000000 000:00000 [ anon ]

00007f8398017000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8398018000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f839805f000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8398060000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83980a7000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83980a8000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83980ef000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83980f0000 960 rw--- 0000000000000000 000:00000 [ anon ]

00007f83981e0000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83981e1000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f83989e1000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83989e2000 9176 rw--- 0000000000000000 000:00000 [ anon ]

00007f83992e6000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83992e7000 280 rw--- 0000000000000000 000:00000 [ anon ]

00007f839932d000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f839932e000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f8399375000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8399376000 284 rw--- 0000000000000000 000:00000 [ anon ]

00007f83993bd000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f83993be000 280 rw--- 0000000000000000 000:00000 [ anon ]

00007f8399404000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8399405000 280 rw--- 0000000000000000 000:00000 [ anon ]

00007f839944b000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f839944c000 280 rw--- 0000000000000000 000:00000 [ anon ]

00007f8399492000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f8399493000 2728 rw--- 0000000000000000 000:00000 [ anon ]

00007f839973d000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f839973e000 8192 rw--- 0000000000000000 000:00000 [ anon ]

00007f8399f3e000 12 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f8399f41000 12 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f8399f44000 4772 rw--- 0000000000000000 000:00000 [ anon ]

00007f839a3ed000 4 ----- 0000000000000000 000:00000 [ anon ]

00007f839a3ee000 291996 rw--- 0000000000000000 000:00000 [ anon ]

00007f83ac115000 384 r-x-- 0000000000000000 0fd:00001 libpcre.so.1.2.0

00007f83ac175000 2048 ----- 0000000000060000 0fd:00001 libpcre.so.1.2.0

00007f83ac375000 4 r---- 0000000000060000 0fd:00001 libpcre.so.1.2.0

00007f83ac376000 4 rw--- 0000000000061000 0fd:00001 libpcre.so.1.2.0

00007f83ac377000 144 r-x-- 0000000000000000 0fd:00001 libselinux.so.1

00007f83ac39b000 2044 ----- 0000000000024000 0fd:00001 libselinux.so.1

00007f83ac59a000 4 r---- 0000000000023000 0fd:00001 libselinux.so.1

00007f83ac59b000 4 rw--- 0000000000024000 0fd:00001 libselinux.so.1

00007f83ac59c000 8 rw--- 0000000000000000 000:00000 [ anon ]

00007f83ac59e000 88 r-x-- 0000000000000000 0fd:00001 libresolv-2.17.so

00007f83ac5b4000 2044 ----- 0000000000016000 0fd:00001 libresolv-2.17.so

00007f83ac7b3000 4 r---- 0000000000015000 0fd:00001 libresolv-2.17.so

00007f83ac7b4000 4 rw--- 0000000000016000 0fd:00001 libresolv-2.17.so

00007f83ac7b5000 8 rw--- 0000000000000000 000:00000 [ anon ]

00007f83ac7b7000 12 r-x-- 0000000000000000 0fd:00001 libkeyutils.so.1.5

00007f83ac7ba000 2044 ----- 0000000000003000 0fd:00001 libkeyutils.so.1.5

00007f83ac9b9000 4 r---- 0000000000002000 0fd:00001 libkeyutils.so.1.5

00007f83ac9ba000 4 rw--- 0000000000003000 0fd:00001 libkeyutils.so.1.5

00007f83ac9bb000 56 r-x-- 0000000000000000 0fd:00001 libkrb5support.so.0.1

00007f83ac9c9000 2048 ----- 000000000000e000 0fd:00001 libkrb5support.so.0.1

00007f83acbc9000 4 r---- 000000000000e000 0fd:00001 libkrb5support.so.0.1

00007f83acbca000 4 rw--- 000000000000f000 0fd:00001 libkrb5support.so.0.1

00007f83acbcb000 84 r-x-- 0000000000000000 0fd:00001 libz.so.1.2.7

00007f83acbe0000 2044 ----- 0000000000015000 0fd:00001 libz.so.1.2.7

00007f83acddf000 4 r---- 0000000000014000 0fd:00001 libz.so.1.2.7

00007f83acde0000 4 rw--- 0000000000015000 0fd:00001 libz.so.1.2.7

00007f83acde1000 196 r-x-- 0000000000000000 0fd:00001 libk5crypto.so.3.1

00007f83ace12000 2044 ----- 0000000000031000 0fd:00001 libk5crypto.so.3.1

00007f83ad011000 8 r---- 0000000000030000 0fd:00001 libk5crypto.so.3.1

00007f83ad013000 4 rw--- 0000000000032000 0fd:00001 libk5crypto.so.3.1

00007f83ad014000 12 r-x-- 0000000000000000 0fd:00001 libcom_err.so.2.1

00007f83ad017000 2044 ----- 0000000000003000 0fd:00001 libcom_err.so.2.1

00007f83ad216000 4 r---- 0000000000002000 0fd:00001 libcom_err.so.2.1

00007f83ad217000 4 rw--- 0000000000003000 0fd:00001 libcom_err.so.2.1

00007f83ad218000 868 r-x-- 0000000000000000 0fd:00001 libkrb5.so.3.3

00007f83ad2f1000 2044 ----- 00000000000d9000 0fd:00001 libkrb5.so.3.3

00007f83ad4f0000 56 r---- 00000000000d8000 0fd:00001 libkrb5.so.3.3

00007f83ad4fe000 12 rw--- 00000000000e6000 0fd:00001 libkrb5.so.3.3

00007f83ad501000 296 r-x-- 0000000000000000 0fd:00001 libgssapi_krb5.so.2.2

00007f83ad54b000 2048 ----- 000000000004a000 0fd:00001 libgssapi_krb5.so.2.2

00007f83ad74b000 4 r---- 000000000004a000 0fd:00001 libgssapi_krb5.so.2.2

00007f83ad74c000 8 rw--- 000000000004b000 0fd:00001 libgssapi_krb5.so.2.2

00007f83ad74e000 8 r-x-- 0000000000000000 0fd:00001 libfreebl3.so

00007f83ad750000 2044 ----- 0000000000002000 0fd:00001 libfreebl3.so

00007f83ad94f000 4 r---- 0000000000001000 0fd:00001 libfreebl3.so

00007f83ad950000 4 rw--- 0000000000002000 0fd:00001 libfreebl3.so

00007f83ad951000 1804 r-x-- 0000000000000000 0fd:00001 libc-2.17.so

00007f83adb14000 2048 ----- 00000000001c3000 0fd:00001 libc-2.17.so

00007f83add14000 16 r---- 00000000001c3000 0fd:00001 libc-2.17.so

00007f83add18000 8 rw--- 00000000001c7000 0fd:00001 libc-2.17.so

00007f83add1a000 20 rw--- 0000000000000000 000:00000 [ anon ]

00007f83add1f000 84 r-x-- 0000000000000000 0fd:00001 libgcc_s-4.8.5-20150702.so.1

00007f83add34000 2044 ----- 0000000000015000 0fd:00001 libgcc_s-4.8.5-20150702.so.1

00007f83adf33000 4 r---- 0000000000014000 0fd:00001 libgcc_s-4.8.5-20150702.so.1

00007f83adf34000 4 rw--- 0000000000015000 0fd:00001 libgcc_s-4.8.5-20150702.so.1

00007f83adf35000 1028 r-x-- 0000000000000000 0fd:00001 libm-2.17.so

00007f83ae036000 2044 ----- 0000000000101000 0fd:00001 libm-2.17.so

00007f83ae235000 4 r---- 0000000000100000 0fd:00001 libm-2.17.so

00007f83ae236000 4 rw--- 0000000000101000 0fd:00001 libm-2.17.so

00007f83ae237000 932 r-x-- 0000000000000000 0fd:00001 libstdc++.so.6.0.19

00007f83ae320000 2044 ----- 00000000000e9000 0fd:00001 libstdc++.so.6.0.19

00007f83ae51f000 32 r---- 00000000000e8000 0fd:00001 libstdc++.so.6.0.19

00007f83ae527000 8 rw--- 00000000000f0000 0fd:00001 libstdc++.so.6.0.19

00007f83ae529000 84 rw--- 0000000000000000 000:00000 [ anon ]

00007f83ae53e000 40 r-x-- 0000000000000000 0fd:00001 libnuma.so.1.0.0

00007f83ae548000 2044 ----- 000000000000a000 0fd:00001 libnuma.so.1.0.0

00007f83ae747000 4 r---- 0000000000009000 0fd:00001 libnuma.so.1.0.0

00007f83ae748000 4 rw--- 000000000000a000 0fd:00001 libnuma.so.1.0.0

00007f83ae749000 4 r-x-- 0000000000000000 0fd:00001 libaio.so.1.0.1

00007f83ae74a000 2044 ----- 0000000000001000 0fd:00001 libaio.so.1.0.1

00007f83ae949000 4 r---- 0000000000000000 0fd:00001 libaio.so.1.0.1

00007f83ae94a000 4 rw--- 0000000000001000 0fd:00001 libaio.so.1.0.1

00007f83ae94b000 8 r-x-- 0000000000000000 0fd:00001 libdl-2.17.so

00007f83ae94d000 2048 ----- 0000000000002000 0fd:00001 libdl-2.17.so

00007f83aeb4d000 4 r---- 0000000000002000 0fd:00001 libdl-2.17.so

00007f83aeb4e000 4 rw--- 0000000000003000 0fd:00001 libdl-2.17.so

00007f83aeb4f000 2264 r-x-- 0000000000000000 0fd:00001 libcrypto.so.1.0.2k

00007f83aed85000 2048 ----- 0000000000236000 0fd:00001 libcrypto.so.1.0.2k

00007f83aef85000 112 r---- 0000000000236000 0fd:00001 libcrypto.so.1.0.2k

00007f83aefa1000 52 rw--- 0000000000252000 0fd:00001 libcrypto.so.1.0.2k

00007f83aefae000 16 rw--- 0000000000000000 000:00000 [ anon ]

00007f83aefb2000 412 r-x-- 0000000000000000 0fd:00001 libssl.so.1.0.2k

00007f83af019000 2048 ----- 0000000000067000 0fd:00001 libssl.so.1.0.2k

00007f83af219000 16 r---- 0000000000067000 0fd:00001 libssl.so.1.0.2k

00007f83af21d000 28 rw--- 000000000006b000 0fd:00001 libssl.so.1.0.2k

00007f83af224000 28 r-x-- 0000000000000000 0fd:00001 librt-2.17.so

00007f83af22b000 2044 ----- 0000000000007000 0fd:00001 librt-2.17.so

00007f83af42a000 4 r---- 0000000000006000 0fd:00001 librt-2.17.so

00007f83af42b000 4 rw--- 0000000000007000 0fd:00001 librt-2.17.so

00007f83af42c000 32 r-x-- 0000000000000000 0fd:00001 libcrypt-2.17.so

00007f83af434000 2044 ----- 0000000000008000 0fd:00001 libcrypt-2.17.so

00007f83af633000 4 r---- 0000000000007000 0fd:00001 libcrypt-2.17.so

00007f83af634000 4 rw--- 0000000000008000 0fd:00001 libcrypt-2.17.so

00007f83af635000 184 rw--- 0000000000000000 000:00000 [ anon ]

00007f83af663000 92 r-x-- 0000000000000000 0fd:00001 libpthread-2.17.so

00007f83af67a000 2044 ----- 0000000000017000 0fd:00001 libpthread-2.17.so

00007f83af879000 4 r---- 0000000000016000 0fd:00001 libpthread-2.17.so

00007f83af87a000 4 rw--- 0000000000017000 0fd:00001 libpthread-2.17.so

00007f83af87b000 16 rw--- 0000000000000000 000:00000 [ anon ]

00007f83af87f000 136 r-x-- 0000000000000000 0fd:00001 ld-2.17.so

00007f83af8a2000 12 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f83af8a5000 12 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f83af8a8000 12 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f83af8ab000 12 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f83af8ae000 12 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f83af8b1000 12 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f83af8b4000 12 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f83af8b7000 1932 rw--- 0000000000000000 000:00000 [ anon ]

00007f83afa9a000 4 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f83afa9b000 12 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f83afa9e000 4 rw-s- 0000000000000000 000:0000b [aio] (deleted)

00007f83afa9f000 4 rw--- 0000000000000000 000:00000 [ anon ]

00007f83afaa0000 4 r---- 0000000000021000 0fd:00001 ld-2.17.so

00007f83afaa1000 4 rw--- 0000000000022000 0fd:00001 ld-2.17.so

00007f83afaa2000 4 rw--- 0000000000000000 000:00000 [ anon ]

00007ffcfec67000 132 rw--- 0000000000000000 000:00000 [ stack ]

00007ffcfecdc000 8 r-x-- 0000000000000000 000:00000 [ anon ]

ffffffffff600000 4 r-x-- 0000000000000000 000:00000 [ anon ]

mapped: 1909956K writeable/private: 963604K shared: 128K

有好多anon 是什么占用呢