Differences

This shows you the differences between two versions of the page.

--- kvm [2010/03/29 23:57]
a
+++ kvm [2012/04/14 14:13]
stojan
@@ Line 1: / Line 1: @@
 ====== KVM ======
+**
+Creating VMs from Debian repositories**
+<code>
+virt-install -n vmserver -r 2048 --os-type=linux --os-variant=debiansqueeze \
+--disk /backups/vmserver.raw,device=disk,bus=virtio,size=15,sparse=true,format=raw -w bridge=br0,model=virtio \
+--vnc --noautoconsole --location  http://cdn.debian.net/debian/dists/stable/main/installer-amd64/
+</code>
 [[http://www.linux-kvm.com/content/get-performance-boost-backing-your-kvm-guest-hugetlbfs|Get a performance boost by backing your KVM guest with hugetlbfs]]
@@ Line 15: / Line 21: @@
    hugetlbfs       /hugepages  hugetlbfs       defaults        0 0
+<note tip>**Calculate the number of huge pages you require**
+On x86, large pages are 2MB in size so you need to find out how many 2MB pages you need to back your kvm guest. Let’s say you want to use 512 MB for your guest machine then divide 512 by 2 to get 256 pages. Add a few extra pages for additional memory requirements, lets say 40 pages to give a total of 296 pages. Record this value as you’ll need it later on.</note>
    echo 296 >  /proc/sys/vm/nr_hugepages