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Libvirt native C API and daemons
bb81021bfe
When the cpu placement model is "auto", it sets the affinity for domain process with the advisory nodeset from numad, however, creating cgroup for the domain process (called emulator thread in some contexts) later overrides that with pinning it to all available pCPUs. How to reproduce: * Configure the domain with "auto" placement for <vcpu>, e.g. <vcpu placement='auto'>4</vcpu> * % virsh start dom * % cat /proc/$dompid/status Though the emulator cgroup cause conflicts, but we can't simply prohibit creating it, as other tunables are still useful, such as "emulator_period", which is used by API virDomainSetSchedulerParameter. So this patch doesn't prohibit creating the emulator cgroup, but inherit the nodeset from numad, and reset the affinity for domain process. * src/qemu/qemu_cgroup.h: Modify definition of qemuSetupCgroupForEmulator to accept the passed nodenet * src/qemu/qemu_cgroup.c: Set the affinity with the passed nodeset |
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build-aux | ||
daemon | ||
docs | ||
examples | ||
gnulib | ||
include | ||
m4 | ||
po | ||
python | ||
src | ||
tests | ||
tools | ||
.dir-locals.el | ||
.gitignore | ||
.gitmodules | ||
.mailmap | ||
AUTHORS.in | ||
autobuild.sh | ||
autogen.sh | ||
bootstrap | ||
bootstrap.conf | ||
cfg.mk | ||
ChangeLog-old | ||
configure.ac | ||
COPYING.LIB | ||
HACKING | ||
libvirt.pc.in | ||
libvirt.spec.in | ||
Makefile.am | ||
Makefile.nonreentrant | ||
mingw-libvirt.spec.in | ||
README | ||
README-hacking | ||
run.in | ||
TODO |
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>