Currently we only pin guet memory to a numa-node, taskset is used to pin vcpu thread to pyshical cpu core. This patch pins guest cpus to a numa-node.
man page of numactl: --cpunodebind=nodes, -N nodes Only execute command on the CPUs of nodes. Note that nodes may consist of multiple CPUs. nodes may be specified as noted above. Signed-off-by: Amos Kong <[email protected]> --- 0 files changed, 0 insertions(+), 0 deletions(-) diff --git a/client/virt/kvm_vm.py b/client/virt/kvm_vm.py index c00317a..3429630 100644 --- a/client/virt/kvm_vm.py +++ b/client/virt/kvm_vm.py @@ -696,9 +696,11 @@ class VM(virt_vm.BaseVM): numa_node = int(params.get("numa_node")) if numa_node < 0: p = virt_utils.NumaNode(numa_node) - qemu_cmd += "numactl -m %s " % (int(p.get_node_num()) + numa_node) + n = int(p.get_node_num()) + numa_node + qemu_cmd += "numactl -N %s -m %s " % (n, n) else: - qemu_cmd += "numactl -m %s " % (numa_node - 1) + n = numa_node - 1 + qemu_cmd += "numactl -N %s -m %s " % (n, n) # Add the qemu binary qemu_cmd += qemu_binary # Add the VM's name _______________________________________________ Autotest mailing list [email protected] http://test.kernel.org/cgi-bin/mailman/listinfo/autotest
