This function is used to pin vhost and vcpu threads of VM to host cpu (in same numa node).
Signed-off-by: Amos Kong <[email protected]> --- 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))) _______________________________________________ Autotest mailing list [email protected] http://test.kernel.org/cgi-bin/mailman/listinfo/autotest
