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20206a4bc9
See https://bugzilla.redhat.com/show_bug.cgi?id=599091 Saving a paused 512MB domain took 3m47s with the old block size of 512 bytes. Changing the block size to 1024*1024 decreased the time to 56 seconds. (Doubling again to 2048*1024 yielded 0 improvement; lowering to 512k increased the save time to 1m10s, about 20%)
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>