[mysql@ugc215 ~]$ ps aux |grep mysql5722
root     10501  0.0  0.0 106228   140 ?        S    Jul13   0:00 /bin/sh /usr/local/mysql5722/bin/mysqld_safe --datadir=/data/mysql --pid-file=/data/mysql/mysql3306.pid
mysql    12159 88.9 92.0 89798836 60648124 ?   Sl   Jul13 8099:27 /usr/local/mysql5722/bin/mysqld --basedir=/usr/local/mysql5722 --datadir=/data/mysql --plugin-dir=/usr/local/mysql5722/lib/plugin --user=mysql --log-error=/log/mysql/my3306.err --open-files-limit=65535 --pid-file=/data/mysql/mysql3306.pid --socket=/tmp/mysql.sock --port=3306



[mysql@ugc215 ~]$ free -mt
             total       used       free     shared    buffers     cached
Mem:         64375      61730       2644          0        387        909
-/+ buffers/cache:      60433       3941
Swap:        30719       4428      26291
Total:       95095      66158      28936



[mysql@ugc215 ~]$ cat /proc/meminfo 
MemTotal:       65920348 kB
MemFree:         2710464 kB
Buffers:          396404 kB
Cached:           931192 kB
SwapCached:       840484 kB
Active:         55758508 kB
Inactive:        6661588 kB
Active(anon):   54989892 kB
Inactive(anon):  6102836 kB
Active(file):     768616 kB
Inactive(file):   558752 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      31457272 kB
SwapFree:       26922764 kB
Dirty:               168 kB
Writeback:             0 kB
AnonPages:      60762100 kB
Mapped:            29016 kB
Shmem:               192 kB
Slab:             223256 kB
SReclaimable:     101784 kB
SUnreclaim:       121472 kB
KernelStack:        7976 kB
PageTables:       138476 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    64417444 kB
Committed_AS:   23806140 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      396528 kB
VmallocChunk:   34308387488 kB
HardwareCorrupted:     0 kB
AnonHugePages:  56436736 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:       10100 kB
DirectMap2M:     4132864 kB
DirectMap1G:    62914560 kB


[mysql@ugc215 ~]$ cat /etc/sysctl.conf
# Kernel sysctl configuration file for Red Hat Linux
#
# For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and
# sysctl.conf(5) for more details.

# Controls IP packet forwarding
net.ipv4.ip_forward = 0

# Controls source route verification
net.ipv4.conf.default.rp_filter = 1

# Do not accept source routing
net.ipv4.conf.default.accept_source_route = 0

# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename.
# Useful for debugging multi-threaded applications.
kernel.core_uses_pid = 1

# Controls the use of TCP syncookies
net.ipv4.tcp_syncookies = 1

# Disable netfilter on bridges.
net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0

# Controls the default maxmimum size of a mesage queue
kernel.msgmnb = 65536

# Controls the maximum size of a message, in bytes
kernel.msgmax = 65536

# Controls the maximum shared segment size, in bytes
kernel.shmmax = 68719476736

# Controls the maximum number of shared memory segments, in pages
kernel.shmall = 4294967296

# 20180611
vm.vfs_cache_pressure = 200
fs.aio-max-nr = 1048576
fs.file-max = 6815744
vm.swappiness = 1
vm.min_free_kbytes = 2048000