[CentOS-virt] What kernel params to use with KVM hosts??

Hi all,

I order to reach maximum performance on my centos kvm hosts I have use these params:

- On /etc/grub.conf:

kernel /vmlinuz-2.6.18-164.11.1.el5 ro root=LABEL=/ elevator=deadline quiet

- On sysctl.conf

# Special network params net.core.rmem_default = 8388608 net.core.wmem_default = 8388608 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_rmem = 1048576 4194304 16777216 net.ipv4.tcp_wmem = 1048576 4194304 16777216

# 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

# Virtual machines special kernel params vm.swappiness = 0

Do I need to configure something more?? Any tips??

Thanks.