pybencher 2.1.1

PyBencher is a Python benchmarking module for benchmarking several python functions at once. PyBencher supports tuneable benchmarking parameters as well as args and kwargs for function calls.

PyBencher

PyBencher is a simple, decorator-based benchmarking suite for Python. It provides detailed timing statistics (average, median, standard deviation) and supports per-test configuration overrides.

Installation

pip install pybencher

Basic Usage

from pybencher import Suite

suite = Suite()

# Quick registration
@suite.bench()
def my_function():
    return sum(range(10000))

# Custom configuration using 'bench_' prefix
@suite.bench(bench_name="Fast Math", bench_max_itr=5000)
def fast():
    return 1 + 1

# Positional and keyword arguments are passed directly
@suite.bench(10, 20, bench_name="Add")
def add(a, b):
    return a + b

# Manual registration (equivalent to @suite.bench)
def manual_func(n):
    return sum(range(n))

suite.add(manual_func, 1000, bench_name="Manual Register")

# Run and print results
results = suite.run()
results.print()

Configuration Overrides

Any setting in the Suite can be overridden for a specific benchmark by prefixing it with bench_. This ensures that benchmark configuration does not interfere with your function's own parameters (e.g., using timeout=0.5 as a function argument while setting bench_timeout=5.0 for the suite).

Override	Type	Description
bench_name	str	Display name in reports
bench_timeout	float	Per-test time limit in seconds
bench_max_itr	int	Maximum execution count
bench_min_itr	int	Minimum execution count
bench_cut	float	Percentage of outliers to trim (0.0 to 0.5)
bench_disable_stdout	bool	Mute print() output inside the target
bench_verbose	bool	Include extra stats in results.print()
bench_before	callable	Local setup hook
bench_after	callable	Local teardown hook

Reference

Suite

• timeout (float): Default time limit (10s).
• max_itr (int): Default max runs (1000).
• min_itr (int): Default min runs (3).
• cut (float): Default outlier threshold (0.05).
• warmup_itr (int): Number of unmeasured runs to perform before benchmarking (0).
• validate_responses (bool): Enable cross-test output consistency checks (False).
• validate_limit (int): Max number of iterations to store for full sequence validation (10,000).
• disable_stdout (bool): Global stdout suppressor.
• verbose (bool): Global verbosity flag.

BenchmarkResults

• print(verbose=None): Print results to console.
• to_json(indent=4): Export results to JSON.
• to_list(): Export results to list of dicts.

BenchmarkResult

Dataclass containing:

• name: Target name or custom override.
• avg, std, median, minimum, maximum: Timing stats in seconds.
• itr_ps: Iterations per second.
• iterations: Total runs.
• counted_iterations: Runs used for stats after trimming outliers.

Example

from pybencher import Suite

suite = Suite()

# 'timeout' here is a function param, not the benchmark limit
@suite.bench(timeout=0.1, bench_name="Sleepy", bench_verbose=True)
def test_args(timeout):
    import time
    time.sleep(timeout)

results = suite.run()
results.print()

Output:

Sleepy: 100ms/itr | 10.0 itr/s
  std:     120us
  median:  100ms
  min/max: 99ms / 101ms
  runs:    10 (10 counted)
  total:   1.01s

CI/CD Pipeline

PyBencher uses an automated GitHub Actions pipeline:

• Testing: Every push to any branch triggers a full test suite across Linux, Windows, and macOS for Python 3.10–3.14.
• Publishing: Pushes to main automatically publish to PyPI if and only if all tests pass.