Re: [libvirt] cgroup memoryinfo handling

On 03/24/2011 04:09 PM, Zvi Dubitzky wrote: Specific support questions are probably best asked through Red Hat support channels. But the documentation currently states this: http://libvirt.org/formatdomain.html#elementsResources hard_limit The optional hard_limit element is the maximum memory the guest can use. The units for this value are kilobytes (i.e. blocks of 1024 bytes) soft_limit The optional soft_limit element is the memory limit to enforce during memory contention. The units for this value are kilobytes (i.e. blocks of 1024 bytes) swap_hard_limit The optional swap_hard_limit element is the maximum memory plus swap the guest can use. The units for this value are kilobytes (i.e. blocks of 1024 bytes). This has to be more than hard_limit value provided min_guarantee The optional min_guarantee element is the guaranteed minimum memory allocation for the guest. The units for this value are kilobytes (i.e. blocks of 1024 bytes) which should be pretty easy to map up to the corresponding cgroup controller file names like memory.limit_in_bytes. You can also browse the file src/util/cgroups.c to see which particular cgroup files are used for each limit. If you have ideas for improving the documentation, patches are welcome. -- Eric Blake eblake(a)redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org