Main hypervisor: Difference between revisions
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apt install --no-install-recommends openvswitch-switch
apt install --no-install-recommends git
==OpenVSwitch==
ovs-vsctl add-br swglobal
ovs-vsctl add-port swglobal gateway100 tag=100 \
-- set interface gateway100 type=internal
ovs-vsctl add-port swglobal gateway101 tag=101 \
-- set interface gateway101 type=internal
ovs-vsctl add-port swglobal gateway102 tag=102 \
-- set interface gateway102 type=internal
wget https://raw.githubusercontent.com/grzesieklog/unix-lab/main/hv/net/gateway
cp -v gateway /etc/network/interfaces.d/
'gateway' -> '/etc/network/interfaces.d/gateway'
systemctl restart networking.service
==Libvirt netrowks==
wget https://raw.githubusercontent.com/grzesieklog/unix-lab/main/hv/net/swglobal.xml
virsh net-define swglobal.xml
virsh net-start swglobal
virsh net-autostart swglobal
virsh net-list --all
=Kernel Same-page Merging (KSM)=
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Revision as of 15:56, 10 February 2024
Debian 12
apt install --no-install-recommends qemu-system libvirt-clients libvirt-daemon-system apt install --no-install-recommends qemu-utils apt install --no-install-recommends openvswitch-switch apt install --no-install-recommends git
OpenVSwitch
ovs-vsctl add-br swglobal ovs-vsctl add-port swglobal gateway100 tag=100 \ -- set interface gateway100 type=internal ovs-vsctl add-port swglobal gateway101 tag=101 \ -- set interface gateway101 type=internal ovs-vsctl add-port swglobal gateway102 tag=102 \ -- set interface gateway102 type=internal
wget https://raw.githubusercontent.com/grzesieklog/unix-lab/main/hv/net/gateway cp -v gateway /etc/network/interfaces.d/ 'gateway' -> '/etc/network/interfaces.d/gateway' systemctl restart networking.service
Libvirt netrowks
wget https://raw.githubusercontent.com/grzesieklog/unix-lab/main/hv/net/swglobal.xml virsh net-define swglobal.xml virsh net-start swglobal virsh net-autostart swglobal virsh net-list --all
Kernel Same-page Merging (KSM)
https://www.kernel.org/doc/Documentation/vm/ksm.txt
apt install ksmtuned
hv:~# cat /sys/kernel/mm/ksm/max_page_sharing 256 hv:~# cat /sys/kernel/mm/ksm/pages_shared 57 hv:~# cat /sys/kernel/mm/ksm/pages_sharing 3289
libguestfs
apt install libguestfs-tools