3 ms·
As requested: System event Actual latency Scaled latency ------------ -------------- -------------- One CPU
by bumbledraven 8y ago
As requested:
System event Actual latency Scaled latency
------------ -------------- --------------
One CPU cycle 0.4 ns 1 frame (1/60 s)
Level 1 cache access 0.9 ns 2 frames
Level 2 cache access 2.8 ns 7 frames
Level 3 cache access 28 ns 1 s
Main memory access (DDR) ~100 ns 4 s
Intel Optane memory access <10 μs 7 min
NVMe SSD I/O ~25 μs 17 min
SSD I/O 50–150 μs 0.5—2 hrs
Rotational disk I/O 1–10 ms 0.5—5 days
Internet call: SF to NYC 65 ms 1 month
Internet call: SF to Hong Kong 141 ms^3 2 months
Conversions courtesy of Wolfram|Alpha, e.g.: https://www.wolframalpha.com/input/?i=65+ms+%2F+0.4+ns+%2F+60+Hz https://www.wolframalpha.com/input/?i=65+ms+%2F+0.4+ns+%2F+6...