| "track","process","thread","thread_process","ts","dur","category","name" | |
| "[NULL]","[NULL]","t1","[NULL]",1000,0,"cat","name1" | |
| "[NULL]","[NULL]","t1","[NULL]",2000,0,"cat","name2" | |
| "[NULL]","[NULL]","t1","[NULL]",3000,0,"cat","name3" | |
| "[NULL]","[NULL]","t1","[NULL]",4000,0,"cat","name4" | |
| "[NULL]","[NULL]","t1","[NULL]",6000,0,"cat","name5" | |
| "[NULL]","[NULL]","t1","[NULL]",7000,0,"cat","name6" |