sysctl和linux内核参数,Linux 核心(kernel)参数 sysctl.conf , shmmax

# Added for Oracle 10g RAC                  --  64bit,  64G内存的server

kernel.shmall = 16777216

kernel.shmmax = 68719476736

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

fs.file-max = 65536

net.ipv4.ip_local_port_range = 1024 65000

net.core.rmem_default = 262144

net.core.rmem_max = 262144

net.core.wmem_default = 262144

net.core.wmem_max = 262144

# Added by tonywang for Oracle 10g RAC           --  64bit,   16G内存的server

kernel.shmall = 4194304

kernel.shmmax = 10737418240

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

fs.file-max = 65536

net.ipv4.ip_local_port_range = 1024 65000

net.core.rmem_default = 262144

net.core.rmem_max = 262144

net.core.wmem_default = 262144

net.core.wmem_max = 262144

# Added by DBA for Oracle DB                    --  32bit,   2~4 G内存的server

kernel.shmall = 2097152

kernel.shmmax = 2147483648

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

fs.file-max = 65536

net.ipv4.ip_local_port_range = 1024 65000

net.core.rmem_default = 262144

net.core.rmem_max = 262144

net.core.wmem_default = 262144

net.core.wmem_max = 262144