trivial-benchmark

# About Trivial-Benchmark
Frequently I want to do a quick benchmark comparison of my functions. ``time`` is nice to get some data, but it's limited to a single run so there isn't really much of a statistical value in it. Trivial-Benchmark runs a block of code many times and outputs some statistical data for it. On SBCL this includes the data from ``time``, for all other implementations just the REAL- and RUN-TIME data.

# How-To
We assume that there's a local or global nickname for ``org.shirakumo.trivial-benchmark`` called ``tb``. You can activate the global nickname with ``(org.shirakumo.trivial-benchmark:add-nickname)``.

For basic throwaway benchmarking, the ``with-timing`` macro should suffice:

:: common lisp
(tb:with-timing (1000)
  (+ 1 1))
::

However, you can also do more complex timing using your own ``timer`` and ``with-sampling``. The former creates a new timer object (with an optional list of metrics to sample) and the latter collects one sample for each metric of the timer for the duration of the body forms.

:: common lisp
(defvar *timer* (make-instance 'tb:timer))

(tb:with-sampling (*timer*)
  (+ 1 1))

(tb:with-sampling (*timer*)
  (expt 10 100))

(tb:report *timer*)

(tb:reset *timer*)

(tb:report *timer*)
::


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