Linux x86 Kernel Settings

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kernel.shmmni = 4096 
kernel.sem = 250 32000 100 128 
fs.file-max = 6815744
net.ipv4.ip_local_port_range = 9000 65500 
net.core.rmem_default = 262144 
net.core.rmem_max = 4194304 
net.core.wmem_default = 262144 
net.core.wmem_max = 1048576

Linux x86_64 Kernel Settings

kernel.shmmni = 4096 
kernel.sem = 250 32000 100 128 
fs.file-max = 6815744 
net.ipv4.ip_local_port_range = 9000 65500 
net.core.rmem_default = 262144 
net.core.rmem_max = 4194304 
net.core.wmem_default = 262144 
net.core.wmem_max = 1048576 
kernel.shmall = physical RAM size / pagesize For most systems, value is 2097152. 
kernel.shmmax = RAM times 0.5
kernel.shmmni = 4096 
kernel.sem = 250 32000 100 128 
aio-max-nr=3145728 (as per Note 579108.1)

AIX Kernel Settings

chdev -l sys0 -a maxuproc=16384 
chdev -l sys0 -a ncargs=128 
/usr/sbin/no -p -o tcp_ephemeral_low=9000 -o tcp_ephemeral_high=65500 
/usr/sbin/no -p -o udp_ephemeral_low=9000 -o udp_ephemeral_high=65500
/usr/sbin/no -a | fgrep ephemeral 
tcp_ephemeral_low = 32768 
tcp_ephemeral_high = 65535 
udp_ephemeral_low = 32768 
udp_ephemeral_high = 65535 

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