numactl manpage:
--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.
We just want to use numactl to limit memory usage, and set the
cpu affinity of vcpu threads by taskset.
'-N' would make other unimportant threads also execute in
assigned node, it would effect performance.
Reported-by: Wenli Quan <[email protected]>
Signed-off-by: Amos Kong <[email protected]>
---
client/virt/kvm_vm.py | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/client/virt/kvm_vm.py b/client/virt/kvm_vm.py
index 29d6b68..3622e2d 100644
--- a/client/virt/kvm_vm.py
+++ b/client/virt/kvm_vm.py
@@ -836,10 +836,10 @@ class VM(virt_vm.BaseVM):
if numa_node < 0:
p = virt_utils.NumaNode(numa_node)
n = int(p.get_node_num()) + numa_node
- qemu_cmd += "numactl -N %s -m %s " % (n, n)
+ qemu_cmd += "numactl -m %s " % n
else:
n = numa_node - 1
- qemu_cmd += "numactl -N %s -m %s " % (n, n)
+ qemu_cmd += "numactl -m %s " % n
# Add the qemu binary
qemu_cmd += qemu_binary
# Add the VM's name
--
1.7.1
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