These are on the latest Windows 10 via loopMIDI virtual cable:
Reaper:
total events: 503
intervals (ms):
98: 8
99: 122
100: 243
101: 123
102: 7
Sonic Pi:
total events: 590
intervals (ms):
0: 1
2: 3
3: 4
4: 4
5: 1
11: 1
12: 1
23: 1
40: 1
43: 1
47: 1
50: 1
54: 1
62: 2
65: 4
68: 1
69: 1
70: 1
72: 1
74: 1
76: 1
81: 1
83: 3
86: 1
87: 4
88: 4
89: 3
90: 2
91: 5
92: 14
93: 65
94: 69
95: 46
96: 10
97: 26
98: 33
99: 21
100: 10
101: 21
102: 38
103: 33
104: 12
105: 3
106: 1
107: 4
108: 2
109: 5
110: 10
111: 17
112: 37
113: 25
114: 2
115: 2
116: 1
118: 1
122: 1
124: 2
127: 1
132: 1
135: 1
141: 1
156: 1
159: 1
160: 1
162: 2
177: 1
190: 1
195: 1
201: 1
213: 1
217: 1
219: 1
220: 1
222: 1
227: 1
232: 1
261: 1
266: 1
307: 1
Some of the SP numbers indicate that the debugger has limitations of its own, but…