This function is used to pin vhost and vcpu threads of VM to
host cpu (in same numa node).
Signed-off-by: Amos Kong <akong@xxxxxxxxxx>
---
0 files changed, 0 insertions(+), 0 deletions(-)
diff --git a/client/virt/virt_test_utils.py b/client/virt/virt_test_utils.py
index 6b0d7eb..7864d2a 100644
--- a/client/virt/virt_test_utils.py
+++ b/client/virt/virt_test_utils.py
@@ -811,3 +811,14 @@ def run_virt_sub_test(test, params, env, sub_type=None):
# Run the test function
run_func = getattr(test_module, "run_%s" % sub_type)
run_func(test, params, env)
+
+def pin_vm_threads(vm, node):
+ """
+ Pin VM threads to single cpu of a numa node
+ @param vm: VM object
+ @param node: NumaNode object
+ """
+ for i in vm.vhost_threads:
+ logging.info("pin vhost thread(%s) to cpu(%s)" % (i, node.pin_cpu(i)))
+ for i in vm.vcpu_threads:
+ logging.info("pin vcpu thread(%s) to cpu(%s)" % (i, node.pin_cpu(i)))
--
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