cat /etc/sysctl.conf 确认如下是自动增加的内容：
# For 11g, Oracle-Validated setting for fs.file-max is 6815744 # For 10g, uncomment 'fs.file-max = 327679', and comment 'fs.file-max = 6553600' entry and re-run sysctl -p # fs.file-max = 327679 fs.file-max = 6815744 # Oracle-Validated setting for kernel.msgmni is 2878 kernel.msgmni = 2878 # Oracle-Validated setting for kernel.msgmax is 8192 kernel.msgmax = 8192 # Oracle-Validated setting for kernel.msgmnb is 65536 kernel.msgmnb = 65536 # Oracle-Validated setting for kernel.sem is '250 32000 100 142' kernel.sem = 250 32000 100 142 # Oracle-Validated setting for kernel.shmmni is 4096 kernel.shmmni = 4096 # Oracle-Validated setting for kernel.shmall is 1073741824 kernel.shmall = 1073741824 # Oracle-Validated setting for kernel.shmmax is 4398046511104 on x86_64 and 4294967295 on i386 architecture. Refer Note id 567506.1 kernel.shmmax = 4398046511104 # Oracle-Validated setting for kernel.sysrq is 1 kernel.sysrq = 1 # Oracle-Validated setting for net.core.rmem_default is 262144 net.core.rmem_default = 262144 # For 11g, Oracle-Validated setting for net.core.rmem_max is 4194304 # For 10g, uncomment 'net.core.rmem_max = 2097152', comment 'net.core.rmem_max = 4194304' entry and re-run sysctl -p # net.core.rmem_max = 2097152 net.core.rmem_max = 4194304 # Oracle-Validated setting for net.core.wmem_default is 262144 net.core.wmem_default = 262144 # For 11g, Oracle-Validated setting for net.core.wmem_max is 1048576 # For 10g, uncomment 'net.core.wmem_max = 262144', comment 'net.core.wmem_max = 1048576' entry for this parameter and re-run sysctl -p # net.core.wmem_max = 262144 net.core.wmem_max = 1048576 # Oracle-Validated setting for fs.aio-max-nr is 3145728 fs.aio-max-nr = 3145728 # For 11g, Oracle-Validated setting for net.ipv4.ip_local_port_range is 9000 65500 # For 10g, uncomment 'net.ipv4.ip_local_port_range = 1024 65000', comment 'net.ipv4.ip_local_port_range = 9000 65500' entry and re-run sysctl -p # net.ipv4.ip_local_port_range = 1024 65000 net.ipv4.ip_local_port_range = 9000 65500 # Oracle-Validated setting for vm.min_free_kbytes is 51200 to avoid OOM killer vm.min_free_kbytes = 51200