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< > BotCompany Repo | #1013407 // collectGCPauses

JavaX fragment (include)

import javax.management.*;
import javax.management.openmbean.CompositeData;
import com.sun.management.GcInfo;
import com.sun.management.GarbageCollectionNotificationInfo;

sclass GCPause {
  long start, duration;
  S name, cause, action;
  
  toString {
    ret "GCPause duration=" + duration + " ms, start=" + start + " (VM time). " + renderStructs(+name, +cause, +action);
  }
}

static new Flag collectGCPauses_started;
static L<GCPause> collectGCPauses_list;

static void collectGCPauses() {
  collectGCPauses(1000);
}

static void collectGCPauses(int bufferSize) {
  if (!collectGCPauses_started.raise()) ret;
  collectGCPauses_list = synchroList(LatestList(bufferSize));
  
  onGCNotification(voidfunc(GarbageCollectionNotificationInfo info) {
    GcInfo gcInfo = info.getGcInfo();
    GCPause pause = nu(GCPause,
      start := gcInfo.getStartTime(),
      duration := gcInfo.getDuration(),
      name := info.getGcName(),
      cause := info.getGcCause(),
      action := info.getGcAction());
    collectGCPauses_list.add(pause);
  });
}

Author comment

Began life as a copy of #1013400

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Snippet ID: #1013407
Snippet name: collectGCPauses
Eternal ID of this version: #1013407/3
Text MD5: 5591b0162d9447c54f6a26eda211d830
Author: stefan
Category: javax / gc / monitoring
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2018-01-05 02:25:56
Source code size: 1080 bytes / 36 lines
Pitched / IR pitched: No / No
Views / Downloads: 455 / 464
Version history: 2 change(s)
Referenced in: [show references]