Merge pull request #571 from jschintag/cstate-fix

cstate/pstate: Skip check on non intel arches

source/cpu/cstate_stub.go

@@ -0,0 +1,24 @@
+// +build !amd64
+
+/*
+Copyright 2021 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package cpu
+
+// Discover if c-states are enabled
+func detectCstate() (bool, bool, error) {
+	return false, false, nil
+}

source/cpu/pstate_amd64.go

@@ -21,7 +21,6 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
-	"runtime"
 	"strings"
 
 	"k8s.io/klog/v2"
@@ -31,12 +30,6 @@ import (
 
 // Discover p-state related features such as turbo boost.
 func detectPstate() (map[string]string, error) {
-	// On other platforms, the frequency boost mechanism is software-based.
-	// So skip pstate detection on other architectures.
-	if runtime.GOARCH != "amd64" && runtime.GOARCH != "386" {
-		return nil, nil
-	}
-
 	// Check that sysfs is available
 	sysfsBase := source.SysfsDir.Path("devices/system/cpu")
 	if _, err := os.Stat(sysfsBase); err != nil {

source/cpu/pstate_stub.go

@@ -0,0 +1,24 @@
+// +build !amd64
+
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package cpu
+
+// Discover p-state related features such as turbo boost.
+func detectPstate() (map[string]string, error) {
+	return nil, nil
+}