libalgorithm-backoff-perl binary package in Ubuntu Mantic amd64

 This package provides several classes that implement various backoff
 strategies for setting delay between retry attempts.
 .
 Included modules:
 .
  Algorithm::Backoff::Constant - Backoff using a constant delay
  Algorithm::Backoff::Exponential - Backoff exponentially
  Algorithm::Backoff::Fibonacci - Backoff using Fibonacci sequence
  Algorithm::Backoff::LILD - Linear Increment, Linear Decrement
  Algorithm::Backoff::LIMD - Linear Increment, Multiplicative Decrement
  Algorithm::Backoff::MILD - Multiplicative Increment, Linear Decrement
  Algorithm::Backoff::MIMD - Multiplicative Increment, Multiplicative Decrement

Source package