docs: function(eventName, cpuNumber, pid, ts, eventBase) {
        var event = workqueueExecuteStartRE.exec(eventBase.details);
        if (!event)
          return false;
  
        var kthread = this.importer.getOrCreateKernelThread(eventBase.threadName,
            pid, pid);
        kthread.openSliceTS = ts;
        kthread.openSlice = event[2];
        return true;
      }