-
Notifications
You must be signed in to change notification settings - Fork 1.5k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
a54c6cf
commit 671b4d4
Showing
5 changed files
with
301 additions
and
223 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
212 changes: 212 additions & 0 deletions
212
vjtop/src/main/java/com/vip/vjtools/vjtop/TopThread.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,212 @@ | ||
| package com.vip.vjtools.vjtop; | ||
|
|
||
| import java.io.IOException; | ||
| import java.lang.management.ThreadInfo; | ||
|
|
||
| import com.vip.vjtools.vjtop.VMDetailView.DetailMode; | ||
| import com.vip.vjtools.vjtop.util.LongObjectHashMap; | ||
| import com.vip.vjtools.vjtop.util.LongObjectMap; | ||
| import com.vip.vjtools.vjtop.util.Utils; | ||
|
|
||
| public class TopThread { | ||
| private VMInfo vmInfo; | ||
|
|
||
| private long[] topTidArray; | ||
|
|
||
| private LongObjectMap<Long> lastThreadCpuTotalTimes = new LongObjectHashMap<Long>(); | ||
| private LongObjectMap<Long> lastThreadSysCpuTotalTimes = new LongObjectHashMap<Long>(); | ||
| private LongObjectMap<Long> lastThreadMemoryTotalBytes = new LongObjectHashMap<Long>(); | ||
|
|
||
| public TopThread(VMInfo vmInfo) { | ||
| this.vmInfo = vmInfo; | ||
| } | ||
|
|
||
| public TopCpuResult topCpuThreads(DetailMode mode, int threadLimit) throws IOException { | ||
|
|
||
| long tids[] = vmInfo.getThreadMXBean().getAllThreadIds(); | ||
|
|
||
| TopCpuResult result = new TopCpuResult(); | ||
|
|
||
| int mapSize = tids.length * 2; | ||
| result.threadCpuTotalTimes = new LongObjectHashMap<Long>(mapSize); | ||
| result.threadCpuDeltaTimes = new LongObjectHashMap<>(mapSize); | ||
| result.threadSysCpuTotalTimes = new LongObjectHashMap<>(mapSize); | ||
| result.threadSysCpuDeltaTimes = new LongObjectHashMap<>(mapSize); | ||
|
|
||
| // 批量获取CPU times，性能大幅提高。 | ||
| // 两次获取之间有间隔，在低流量下可能造成负数 | ||
| long[] threadCpuTotalTimeArray = vmInfo.getThreadMXBean().getThreadCpuTime(tids); | ||
| long[] threadUserCpuTotalTimeArray = vmInfo.getThreadMXBean().getThreadUserTime(tids); | ||
|
|
||
| // 过滤CPU占用太少的线程，每秒0.05%CPU (0.5ms cpu time) | ||
| long minDeltaCpuTime = (vmInfo.upTimeMills.delta * Utils.NANOS_TO_MILLS / 2000); | ||
|
|
||
| // 计算本次CPU Time | ||
| // 此算法第一次不会显示任何数据，保证每次显示都只显示区间内数据 | ||
| for (int i = 0; i < tids.length; i++) { | ||
| long tid = tids[i]; | ||
| Long threadCpuTotalTime = threadCpuTotalTimeArray[i]; | ||
| result.threadCpuTotalTimes.put(tid, threadCpuTotalTime); | ||
|
|
||
| Long lastTime = lastThreadCpuTotalTimes.get(tid); | ||
| if (lastTime != null) { | ||
| Long deltaThreadCpuTime = threadCpuTotalTime - lastTime; | ||
| if (deltaThreadCpuTime >= minDeltaCpuTime) { | ||
| result.threadCpuDeltaTimes.put(tid, deltaThreadCpuTime); | ||
| result.deltaAllThreadCpu += deltaThreadCpuTime; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // 计算本次SYSCPU Time | ||
| for (int i = 0; i < tids.length; i++) { | ||
| long tid = tids[i]; | ||
| // 因为totalTime 与 userTime 的获取时间有先后，实际sys接近0时，后取的userTime可能比前一时刻的totalTime高，计算出来的sysTime可为负数 | ||
| Long threadSysCpuTotalTime = Math.max(0, threadCpuTotalTimeArray[i] - threadUserCpuTotalTimeArray[i]); | ||
| result.threadSysCpuTotalTimes.put(tid, threadSysCpuTotalTime); | ||
|
|
||
| Long lastTime = lastThreadSysCpuTotalTimes.get(tid); | ||
| if (lastTime != null) { | ||
| Long deltaThreadSysCpuTime = Math.max(0, threadSysCpuTotalTime - lastTime); | ||
| if (deltaThreadSysCpuTime >= minDeltaCpuTime) { | ||
| result.threadSysCpuDeltaTimes.put(tid, deltaThreadSysCpuTime); | ||
| result.deltaAllThreadSysCpu += deltaThreadSysCpuTime; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| if (lastThreadCpuTotalTimes.isEmpty()) { | ||
| lastThreadCpuTotalTimes = result.threadCpuTotalTimes; | ||
| lastThreadSysCpuTotalTimes = result.threadSysCpuTotalTimes; | ||
| result.ready = false; | ||
| return result; | ||
| } | ||
|
|
||
| // 按不同类型排序,过滤 | ||
| if (mode == DetailMode.cpu) { | ||
| topTidArray = Utils.sortAndFilterThreadIdsByValue(result.threadCpuDeltaTimes, threadLimit); | ||
| result.noteableThreads = result.threadCpuDeltaTimes.size(); | ||
| } else if (mode == DetailMode.syscpu) { | ||
| topTidArray = Utils.sortAndFilterThreadIdsByValue(result.threadSysCpuDeltaTimes, threadLimit); | ||
| result.noteableThreads = result.threadSysCpuDeltaTimes.size(); | ||
| } else if (mode == DetailMode.totalcpu) { | ||
| topTidArray = Utils.sortAndFilterThreadIdsByValue(result.threadCpuTotalTimes, threadLimit); | ||
| result.noteableThreads = result.threadCpuTotalTimes.size(); | ||
| } else if (mode == DetailMode.totalsyscpu) { | ||
| topTidArray = Utils.sortAndFilterThreadIdsByValue(result.threadSysCpuTotalTimes, threadLimit); | ||
| result.noteableThreads = result.threadSysCpuTotalTimes.size(); | ||
| } else { | ||
| throw new RuntimeException("unkown mode:" + mode); | ||
| } | ||
|
|
||
| if (result.noteableThreads == 0) { | ||
| System.out.printf("%n -Every thread use cpu lower than 0.05%%-%n"); | ||
| } | ||
|
|
||
| // 获得threadInfo | ||
| result.threadInfos = vmInfo.getThreadMXBean().getThreadInfo(topTidArray); | ||
|
|
||
| lastThreadCpuTotalTimes = result.threadCpuTotalTimes; | ||
| lastThreadSysCpuTotalTimes = result.threadSysCpuTotalTimes; | ||
| return result; | ||
| } | ||
|
|
||
|
|
||
| public TopMemoryResult topMemoryThreads(DetailMode mode, int threadLimit) throws IOException { | ||
| long tids[] = vmInfo.getThreadMXBean().getAllThreadIds(); | ||
| TopMemoryResult result = new TopMemoryResult(); | ||
|
|
||
| int mapSize = tids.length * 2; | ||
| result.threadMemoryTotalBytesMap = new LongObjectHashMap<Long>(mapSize); | ||
| result.threadMemoryDeltaBytesMap = new LongObjectHashMap<Long>(mapSize); | ||
|
|
||
| // 批量获取内存分配 | ||
| long[] threadMemoryTotalBytesArray = vmInfo.getThreadMXBean().getThreadAllocatedBytes(tids); | ||
|
|
||
| // 过滤太少的线程，每秒小于1k | ||
| long minDeltaMemory = vmInfo.upTimeMills.delta * 1024 / 1000; | ||
|
|
||
| // 此算法第一次不会显示任何数据，保证每次显示都只显示区间内数据 | ||
| for (int i = 0; i < tids.length; i++) { | ||
| long tid = tids[i]; | ||
| Long threadMemoryTotalBytes = threadMemoryTotalBytesArray[i]; | ||
| result.threadMemoryTotalBytesMap.put(tid, threadMemoryTotalBytes); | ||
| result.totalAllThreadBytes += threadMemoryTotalBytes; | ||
|
|
||
| Long threadMemoryDeltaBytes = 0L; | ||
| Long lastBytes = lastThreadMemoryTotalBytes.get(tid); | ||
|
|
||
| if (lastBytes != null) { | ||
| threadMemoryDeltaBytes = threadMemoryTotalBytes - lastBytes; | ||
| if (threadMemoryDeltaBytes >= minDeltaMemory) { | ||
| result.threadMemoryDeltaBytesMap.put(tid, threadMemoryDeltaBytes); | ||
| result.deltaAllThreadBytes += threadMemoryDeltaBytes; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| if (lastThreadMemoryTotalBytes.isEmpty()) { | ||
| lastThreadMemoryTotalBytes = result.threadMemoryTotalBytesMap; | ||
| result.ready = false; | ||
| return result; | ||
| } | ||
|
|
||
| // 线程排序 | ||
| long[] topTidArray; | ||
| if (mode == DetailMode.memory) { | ||
| topTidArray = Utils.sortAndFilterThreadIdsByValue(result.threadMemoryDeltaBytesMap, threadLimit); | ||
| result.noteableThreads = result.threadMemoryDeltaBytesMap.size(); | ||
| } else { | ||
| topTidArray = Utils.sortAndFilterThreadIdsByValue(result.threadMemoryTotalBytesMap, threadLimit); | ||
| result.noteableThreads = result.threadMemoryTotalBytesMap.size(); | ||
| } | ||
|
|
||
| if (result.noteableThreads == 0) { | ||
| System.out.printf("%n -Every thread allocate memory slower than 1k/s-%n"); | ||
| } | ||
|
|
||
| result.threadInfos = vmInfo.getThreadMXBean().getThreadInfo(topTidArray); | ||
|
|
||
| lastThreadMemoryTotalBytes = result.threadMemoryTotalBytesMap; | ||
|
|
||
| return result; | ||
| } | ||
|
|
||
| public ThreadInfo[] getTopThreadInfo() throws IOException { | ||
| return vmInfo.getThreadMXBean().getThreadInfo(topTidArray, 20); | ||
| } | ||
|
|
||
| public void cleanupThreadsHistory() { | ||
| this.lastThreadCpuTotalTimes.clear(); | ||
| this.lastThreadSysCpuTotalTimes.clear(); | ||
| this.lastThreadMemoryTotalBytes.clear(); | ||
| } | ||
|
|
||
| public static class TopCpuResult { | ||
| public ThreadInfo[] threadInfos; | ||
| public long noteableThreads = 0; | ||
|
|
||
| public long deltaAllThreadCpu = 0; | ||
| public long deltaAllThreadSysCpu = 0; | ||
|
|
||
| public LongObjectMap<Long> threadCpuTotalTimes; | ||
| public LongObjectMap<Long> threadCpuDeltaTimes; | ||
| public LongObjectMap<Long> threadSysCpuTotalTimes; | ||
| public LongObjectMap<Long> threadSysCpuDeltaTimes; | ||
|
|
||
| public boolean ready = true; | ||
| } | ||
|
|
||
| public static class TopMemoryResult { | ||
| public ThreadInfo[] threadInfos; | ||
| public long noteableThreads = 0; | ||
|
|
||
| public long deltaAllThreadBytes = 0; | ||
| public long totalAllThreadBytes = 0; | ||
|
|
||
| public LongObjectMap<Long> threadMemoryTotalBytesMap; | ||
| public LongObjectMap<Long> threadMemoryDeltaBytesMap; | ||
|
|
||
| public boolean ready = true; | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.