Github user knusbaum commented on a diff in the pull request:
https://github.com/apache/storm/pull/1053#discussion_r52064795
--- Diff:
storm-core/src/jvm/org/apache/storm/container/cgroup/core/CpusetCore.java ---
@@ -0,0 +1,212 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.storm.container.cgroup.core;
+
+import org.apache.storm.container.cgroup.CgroupUtils;
+import org.apache.storm.container.cgroup.Constants;
+import org.apache.storm.container.cgroup.SubSystemType;
+
+import java.io.IOException;
+import java.util.LinkedList;
+
+public class CpusetCore implements CgroupCore {
+
+ public static final String CPUSET_CPUS = "/cpuset.cpus";
+ public static final String CPUSET_MEMS = "/cpuset.mems";
+ public static final String CPUSET_MEMORY_MIGRATE =
"/cpuset.memory_migrate";
+ public static final String CPUSET_CPU_EXCLUSIVE =
"/cpuset.cpu_exclusive";
+ public static final String CPUSET_MEM_EXCLUSIVE =
"/cpuset.mem_exclusive";
+ public static final String CPUSET_MEM_HARDWALL =
"/cpuset.mem_hardwall";
+ public static final String CPUSET_MEMORY_PRESSURE =
"/cpuset.memory_pressure";
+ public static final String CPUSET_MEMORY_PRESSURE_ENABLED =
"/cpuset.memory_pressure_enabled";
+ public static final String CPUSET_MEMORY_SPREAD_PAGE =
"/cpuset.memory_spread_page";
+ public static final String CPUSET_MEMORY_SPREAD_SLAB =
"/cpuset.memory_spread_slab";
+ public static final String CPUSET_SCHED_LOAD_BALANCE =
"/cpuset.sched_load_balance";
+ public static final String CPUSET_SCHED_RELAX_DOMAIN_LEVEL =
"/cpuset.sched_relax_domain_level";
+
+ private final String dir;
+
+ public CpusetCore(String dir) {
+ this.dir = dir;
+ }
+
+ @Override
+ public SubSystemType getType() {
+ return SubSystemType.cpuset;
+ }
+
+ public void setCpus(int[] nums) throws IOException {
+ StringBuilder sb = new StringBuilder();
+ for (int num : nums) {
+ sb.append(num);
+ sb.append(',');
+ }
+ sb.deleteCharAt(sb.length() - 1);
+ CgroupUtils.writeFileByLine(Constants.getDir(this.dir,
CPUSET_CPUS), sb.toString());
+ }
+
+ public int[] getCpus() throws IOException {
+ String output =
CgroupUtils.readFileByLine(Constants.getDir(this.dir, CPUSET_CPUS)).get(0);
+ return parseNums(output);
+ }
+
+ public void setMems(int[] nums) throws IOException {
--- End diff --
D.R.Y. `setCpus`
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