docs: function LinuxPerfImporter(model, events) {
      this.importPriority = 2;
      this.model_ = model;
      this.events_ = events;
      this.newlyAddedClockSyncRecords_ = [];
      this.wakeups_ = [];
      this.blocked_reasons_ = [];
      this.kernelThreadStates_ = {};
      this.buildMapFromLinuxPidsToThreads();
      this.lines_ = [];
      this.pseudoThreadCounter = 1;
      this.parsers_ = [];
      this.eventHandlers_ = {};
    }