criterion-0.4.0: Robust, reliable performance measurement and analysis Source code Contents Index

Criterion Portability GHC Stability experimental Maintainer bos@serpentine.com

Description

Core benchmarking code.

Synopsis

class Benchmarkable a where run :: a -> Int -> IO () data Benchmark data Pure nf :: NFData b => (a -> b) -> a -> Pure whnf :: (a -> b) -> a -> Pure bench :: Benchmarkable b => String -> b -> Benchmark bgroup :: String -> [Benchmark] -> Benchmark runBenchmark :: Benchmarkable b => Environment -> b -> Criterion Sample runAndAnalyse :: (String -> Bool) -> Environment -> Benchmark -> Criterion ()

Documentation

class Benchmarkable a where Source

A benchmarkable function or action. Methods run Source :: a The function or action to benchmark. -> Int The number of times to run or evaluate it. -> IO () Run a function or action the specified number of times. Instances Benchmarkable Pure Benchmarkable (IO a)

data Benchmark Source

A benchmark may consist of either a single Benchmarkable item with a name, created with bench, or a (possibly nested) group of Benchmarks, created with bgroup. Instances Show Benchmark

data Pure Source

A container for a pure function to benchmark, and an argument to supply to it each time it is evaluated. Instances Benchmarkable Pure

nf :: NFData b => (a -> b) -> a -> Pure Source

whnf :: (a -> b) -> a -> Pure Source

bench Source

:: Benchmarkable b => String -> b -> Benchmark Create a single benchmark.

bgroup Source

:: String A name to identify the group of benchmarks. -> [Benchmark] Benchmarks to group under this name. -> Benchmark Group several benchmarks together under a common name.

runBenchmark :: Benchmarkable b => Environment -> b -> Criterion Sample Source

Run a single benchmark, and return timings measured when executing it.

runAndAnalyse Source

:: String -> Bool A predicate that chooses whether to run a benchmark by its name. -> Environment -> Benchmark -> Criterion () Run, and analyse, one or more benchmarks.

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