| "track","process","thread","thread_process","ts","dur","category","name","arg_set_id" |
| "[NULL]","[NULL]","t1","p1",1000,0,"cat","event1_on_t1",0 |
| "[NULL]","[NULL]","t2","p1",2000,0,"cat","event1_on_t2",0 |
| "[NULL]","[NULL]","t2","p1",3000,0,"cat","event2_on_t2",0 |
| "[NULL]","p1","[NULL]","[NULL]",4000,0,"cat","event1_on_p1",3 |
| "async","p1","[NULL]","[NULL]",5000,0,"cat","event1_on_async",3 |
| "async2","p1","[NULL]","[NULL]",5100,100,"cat","event1_on_async2",3 |
| "[NULL]","[NULL]","t1","p1",6000,0,"cat","event3_on_t1",0 |
| "[NULL]","[NULL]","t3","p1",11000,0,"cat","event1_on_t3",0 |
| "[NULL]","p2","[NULL]","[NULL]",21000,0,"cat","event1_on_p2",7 |
| "[NULL]","[NULL]","t4","p2",22000,0,"cat","event1_on_t4",0 |
| "Default Track","[NULL]","[NULL]","[NULL]",30000,0,"cat","event1_on_t1",0 |
| "[NULL]","p2","[NULL]","[NULL]",31000,0,"cat","event2_on_p2",6 |
| "[NULL]","[NULL]","t4","p2",32000,0,"cat","event2_on_t4",0 |
