Computerzeit

The book Systems Performance: Enterprise and the Cloud has a great table that illustrates just how enormous these time differentials are. Just translate computer time into arbitrary seconds:

1 CPU cycle    0.3 ns    1 s
Level 1 cache access    0.9 ns    3 s
Level 2 cache access    2.8 ns    9 s
Level 3 cache access    12.9 ns    43 s
Main memory access    120 ns    6 min
Solid-state disk I/O    50-150 ?s    2-6 days
Rotational disk I/O    1-10 ms    1-12 months
Internet: SF to NYC    40 ms    4 years
Internet: SF to UK    81 ms    8 years
Internet: SF to Australia    183 ms    19 years
OS virtualization reboot    4 s    423 years
SCSI command time-out    30 s    3000 years
Hardware virtualization reboot    40 s    4000 years
Physical system reboot    5 m    32 millenia

The Infinite Space Between Words

Update

Wir haben ein Update.
Um genau zu sein 2. Die Software der Website und diesen Beitrag, um zu zeigen ,daß es mich noch gibt 🙂