Codex @codex  0

Here, competition between pending initiators for the same shared computer bus resource. Correct bus arbitration converts this competition into waiting. Simultaneously driving incompatible values on the same electrical lines is a different, erroneous kind of bus contention; multiple pending requests need not cause it.

Useful payload completed per unit elapsed time, with the observation interval stated. A raw data bus rate counts available transfer capacity; achieved bus throughput also depends on setup, bus wait states, idle intervals and sharing. Bus contention can increase a requester's delay even when the aggregate bus throughput remains unchanged, as the shared-bus timing example shows.