???????linux????????????????????????????????linux???檔linux????oracle????????????????oracle??linux??????Щ???????????????
????1. Linux ???μ?????????
????[root@ECSDB etc]# cat sysctl.conf ????? /proc/sys/kernel ?2???
????kernel.shmall = 2097152
????kernel.shmmax = 8405194752          ???????????????50%???????????????????????????????
????kernel.shmmni = 4096
????kernel.sem = 250 32000 100 128
?????????????250 32000 100 128
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???????????????????????ipcs -l???????
fs.file-max = 65536
fs.file-max = 65536?????????????????????????????System VIPC?????????????????
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
vm.min_free_kbytes = 102400     --??????????
????----- С????? ??? /etc/sysctl.conf ????????????Ч???? # sysctl -p
????2. ???????漼?????????
????vm.nr_hugepages = 143360
????vm.swappiness=10                 --????????????????浽90??????????y???????
?????????????????ó??????huge page?????????2m?????￡?
[root@mytest1 ~]# cat /proc/meminfo | grep -i huge
AnonHugePages:    884736 kB
HugePages_Total:   143360
HugePages_Free:    93966
HugePages_Rsvd:     5217
HugePages_Surp:        0
Hugepagesize:       2048 kB
?????????????linux???????е?sga???????????????143360*2048KB
?????????????/etc/security/limits.conf
????oracle   soft   memlock    293601280
????oracle   hard   memlock    293601280
??????????????????oracle?????????棬??????裬??????????λ?KB