chiffa

Latency Comparison Numbers
--------------------------
4GHz Processor cycle                         0.25 ns                     250  ms
L1 cache reference                           0.5  ns                     500  ms
Branch mispredict                            5    ns                       5  s
L2 cache reference                           7    ns                       7  s           14x L1 cache
Mutex lock/unlock                           25    ns                      25  s
Main memory reference                      100    ns                       1  m   40 s    20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000    ns        3 us          50  m   00 s
Send 1K bytes over 1 Gbps network       10,000    ns       10 us           2  h   46 m