| /** |
| * 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 java.io.IOException; |
| import java.util.List; |
| import org.apache.storm.container.cgroup.CgroupUtils; |
| import org.apache.storm.container.cgroup.SubSystemType; |
| |
| public class CpuCore implements CgroupCore { |
| |
| public static final String CPU_SHARES = "/cpu.shares"; |
| public static final String CPU_RT_RUNTIME_US = "/cpu.rt_runtime_us"; |
| public static final String CPU_RT_PERIOD_US = "/cpu.rt_period_us"; |
| public static final String CPU_CFS_PERIOD_US = "/cpu.cfs_period_us"; |
| public static final String CPU_CFS_QUOTA_US = "/cpu.cfs_quota_us"; |
| public static final String CPU_STAT = "/cpu.stat"; |
| |
| private final String dir; |
| |
| public CpuCore(String dir) { |
| this.dir = dir; |
| } |
| |
| @Override |
| public SubSystemType getType() { |
| return SubSystemType.cpu; |
| } |
| |
| public int getCpuShares() throws IOException { |
| return Integer.parseInt(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, CPU_SHARES)).get(0)); |
| } |
| |
| public void setCpuShares(int weight) throws IOException { |
| CgroupUtils.writeFileByLine(CgroupUtils.getDir(this.dir, CPU_SHARES), String.valueOf(weight)); |
| } |
| |
| public long getCpuRtRuntimeUs() throws IOException { |
| return Long.parseLong(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, CPU_RT_RUNTIME_US)).get(0)); |
| } |
| |
| public void setCpuRtRuntimeUs(long us) throws IOException { |
| CgroupUtils.writeFileByLine(CgroupUtils.getDir(this.dir, CPU_RT_RUNTIME_US), String.valueOf(us)); |
| } |
| |
| public Long getCpuRtPeriodUs() throws IOException { |
| return Long.parseLong(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, CPU_RT_PERIOD_US)).get(0)); |
| } |
| |
| public void setCpuRtPeriodUs(long us) throws IOException { |
| CgroupUtils.writeFileByLine(CgroupUtils.getDir(this.dir, CPU_RT_PERIOD_US), String.valueOf(us)); |
| } |
| |
| public Long getCpuCfsPeriodUs() throws IOException { |
| return Long.parseLong(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, CPU_CFS_PERIOD_US)).get(0)); |
| } |
| |
| public void setCpuCfsPeriodUs(long us) throws IOException { |
| CgroupUtils.writeFileByLine(CgroupUtils.getDir(this.dir, CPU_CFS_PERIOD_US), String.valueOf(us)); |
| } |
| |
| public Long getCpuCfsQuotaUs() throws IOException { |
| return Long.parseLong(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, CPU_CFS_QUOTA_US)).get(0)); |
| } |
| |
| public void setCpuCfsQuotaUs(long us) throws IOException { |
| CgroupUtils.writeFileByLine(CgroupUtils.getDir(this.dir, CPU_CFS_QUOTA_US), String.valueOf(us)); |
| } |
| |
| public Stat getCpuStat() throws IOException { |
| return new Stat(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, CPU_STAT))); |
| } |
| |
| public static class Stat { |
| public final int nrPeriods; |
| public final int nrThrottled; |
| public final int throttledTime; |
| |
| public Stat(List<String> statStr) { |
| this.nrPeriods = Integer.parseInt(statStr.get(0).split(" ")[1]); |
| this.nrThrottled = Integer.parseInt(statStr.get(1).split(" ")[1]); |
| this.throttledTime = Integer.parseInt(statStr.get(2).split(" ")[1]); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + nrPeriods; |
| result = prime * result + nrThrottled; |
| result = prime * result + throttledTime; |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| Stat other = (Stat) obj; |
| if (nrPeriods != other.nrPeriods) { |
| return false; |
| } |
| if (nrThrottled != other.nrThrottled) { |
| return false; |
| } |
| if (throttledTime != other.throttledTime) { |
| return false; |
| } |
| return true; |
| } |
| } |
| } |