Event Types:
0: Create thread (size 4)
1: Run thread (size 4)
2: Stop thread (size 10)
3: Thread runnable (size 4)
4: Migrate thread (size 6)
8: Wakeup thread (size 6)
9: Starting GC (size 0)
10: Finished GC (size 0)
11: Request sequential GC (size 0)
12: Request parallel GC (size 0)
15: Create spark thread (size 4)
16: Log message (size variable)
18: Block marker (size 14)
19: User message (size variable)
20: GC idle (size 0)
21: GC working (size 0)
22: GC done (size 0)
25: Create capability set (size 6)
26: Delete capability set (size 4)
27: Add capability to capability set (size 6)
28: Remove capability from capability set (size 6)
29: RTS name and version (size variable)
30: Program arguments (size variable)
31: Program environment variables (size variable)
32: Process ID (size 8)
33: Parent process ID (size 8)
34: Spark counters (size 56)
35: Spark create (size 0)
36: Spark dud (size 0)
37: Spark overflow (size 0)
38: Spark run (size 0)
39: Spark steal (size 2)
40: Spark fizzle (size 0)
41: Spark GC (size 0)
43: Wall clock time (size 16)
44: Thread label (size variable)
45: Create capability (size 2)
46: Delete capability (size 2)
47: Disable capability (size 2)
48: Enable capability (size 2)
49: Total heap mem ever allocated (size 12)
50: Current heap size (size 12)
51: Current heap live data (size 12)
52: Heap static parameters (size 38)
53: GC statistics (size 58)
54: Synchronise stop-the-world GC (size 0)
55: Task create (size 18)
56: Task migrate (size 12)
57: Task delete (size 8)
58: User marker (size variable)
59: Empty event for bug #9003 (size 0)
160: Start of heap profile (size variable)
161: Cost center definition (size variable)
162: Start of heap profile sample (size 8)
163: Heap profile cost-centre sample (size variable)
164: Heap profile string sample (size variable)
165: End of heap profile sample (size 8)
166: Start of heap profile (biographical) sample (size 16)
167: Time profile cost-centre stack (size variable)
168: Start of a time profile (size 8)
181: User binary message (size variable)
200: Begin concurrent mark phase (size 0)
201: End concurrent mark phase (size 4)
202: Begin concurrent GC synchronisation (size 0)
203: End concurrent GC synchronisation (size 0)
204: Begin concurrent sweep (size 0)
205: End concurrent sweep (size 0)
206: Update remembered set flushed (size 2)
207: Nonmoving heap census (size 13)

Events:
620636: capset 1: wall clock time 1587578331s 829795000ns (unix epoch)
627395: capset 0: pid 20807
636419: capset 0: parent pid 18766
644544: capset 0: RTS version "GHC-8.10.1 rts_thr_debug"
649853: capset 0: args: ["./Main","10","+RTS","-l-an","-xn"]
20282519: Starting nonmoving GC preparation
20305849: Marking roots for nonmoving GC
20331402: Finished marking roots for nonmoving GC
20333822: Finished nonmoving GC preparation
20810540: concurrent mark began
30089152: concurrent mark ended: marked 6677 objects
30210049: post-mark synchronization began
32582336: cap 0: update remembered set flushed by 0
32608578: concurrent mark began
35122177: concurrent mark ended: marked 7758 objects
35126012: concurrent mark began
35127755: concurrent mark ended: marked 1 objects
35129046: concurrent mark began
35129935: concurrent mark ended: marked 1 objects
35203888: post-mark synchronization ended
35258771: concurrent sweep began
35263947: concurrent sweep ended