Update README.md with current benchmark scenarios, CLI options, and report formats (EN)

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Sergey Penkovsky
2025-08-06 23:19:37 +03:00
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# benchmark_cherrypick
Benchmarks for the performance and features of the cherrypick (core) DI container.
_Benchmark suite for cherrypick DI container and its features._
## Scenarios
## Overview
- **RegisterAndResolve**: Basic registration and resolution of a dependency.
- **ChainSingleton** (A->B->C, singleton): Deep dependency chain, all as singletons.
- **ChainFactory** (A->B->C, factory): Dependency chain with factory bindings (new instance per request).
- **NamedResolve** (by name): Resolving a named dependency among several implementations.
- **AsyncChain** (A->B->C, async): Asynchronous dependency chain.
- **ScopeOverride** (child overrides parent): Overriding a dependency in a child scope over a parent.
This package provides comprehensive benchmarks for the [cherrypick](https://github.com/) dependency injection core and comparable DI scenarios. It includes a CLI tool for running a matrix of synthetic scenarios—covering depth and breadth, named resolutions, scope overrides, async chains, memory usage and more.
## Features
**Key Features:**
- Declarative matrix runs (chain count, nesting depth, scenario, repeats)
- CLI tool with flexible configuration
- Multiple report formats: pretty table, CSV, JSON, Markdown
- Memory and runtime statistics (mean, median, stddev, min, max, memory diffs)
- Built-in and extensible scenarios (singletons, factories, named, async, overrides)
- Easy to extend with your own modules/adapters
- **Unified benchmark structure**
- **Flexible CLI parameterization (chain length, depth, repeats, warmup, scenario selection, format)**
- **Automatic matrix/mass run for sets of parameters**
- **Statistics: mean, median, stddev, min, max for each scenario**
- **Memory metrics: memory_diff_kb (total diff), delta_peak_kb (max growth), peak_rss_kb (absolute peak)**
- **Pretty-table, CSV, and JSON output**
- **Warmup runs before timing for better result stability**
---
## How to run
## Benchmark Scenarios
1. Get dependencies:
- **RegisterSingleton**: Registers and resolves a singleton dependency
- **ChainSingleton**: Resolves a deep chain of singleton dependencies (A→B→C...)
- **ChainFactory**: Resolves a deep chain using factory bindings (new instance each time)
- **AsyncChain**: Resolves an async dependency chain (async providers)
- **Named**: Resolves a named dependency from several implementations
- **Override**: Resolves a dependency overridden in a child scope
---
## How to Run
1. **Get dependencies:**
```shell
dart pub get
```
2. Run all benchmarks (defaults: single parameter set, repeat=5, warmup=2):
2. **Run all benchmarks (default single configuration, 2 warmups, 2 repeats):**
```shell
dart run bin/main.dart
```
### Custom parameters
3. **Show available CLI options:**
```shell
dart run bin/main.dart --help
```
- Matrix run (CSV, 7 repeats, 3 warmups):
### CLI Parameters
- `--benchmark, -b` — Benchmark scenario:
`registerSingleton`, `chainSingleton`, `chainFactory`, `asyncChain`, `named`, `override`, `all` (default: all)
- `--chainCount, -c` — Comma-separated chain counts, e.g. `10,100`
- `--nestingDepth, -d` — Comma-separated chain depths, e.g. `5,10`
- `--repeat, -r` — Number of measurement runs per scenario (default: 2)
- `--warmup, -w` — Warmup runs before measuring (default: 1)
- `--format, -f` — Output format: `pretty`, `csv`, `json`, `markdown` (default: pretty)
- `--help, -h` — Show usage
### Examples
- **Matrix run:**
```shell
dart run bin/main.dart --benchmark=chain_singleton --chainCount=10,100 --nestingDepth=5,10 --repeat=7 --warmup=3 --format=csv
dart run bin/main.dart --benchmark=chainSingleton --chainCount=10,100 --nestingDepth=5,10 --repeat=5 --warmup=2 --format=markdown
```
- Run only the named resolve scenario:
- **Run just the named scenario:**
```shell
dart run bin/main.dart --benchmark=named --repeat=3 --warmup=1
dart run bin/main.dart --benchmark=named --repeat=3
```
- See available CLI flags:
```shell
dart run bin/main.dart --help
```
### Example Output (Markdown)
#### CLI options
- `--benchmark` (`-b`) — Scenario:
`register`, `chain_singleton`, `chain_factory`, `named`, `override`, `async_chain`, `all` (default: all)
- `--chainCount` (`-c`) — Comma-separated chain lengths. E.g. `10,100`
- `--nestingDepth` (`-d`) — Comma-separated chain depths. E.g. `5,10`
- `--repeat` (`-r`) — How many times to measure each scenario (`default: 5`)
- `--warmup` (`-w`) — How many warmup runs before actual timing (`default: 2`)
- `--format` (`-f`) — Output: `pretty`, `csv`, `json` (default: pretty)
- `--help` (`-h`) — Print help
#### Example output (`--format=csv`)
```
benchmark,chainCount,nestingDepth,mean_us,median_us,stddev_us,min_us,max_us,trials,timings_us,memory_diff_kb,delta_peak_kb,peak_rss_kb
ChainSingleton,10,5,2450000,2440000,78000,2290000,2580000,5,"2440000;2460000;2450000;2580000;2290000",-64,0,200064
| Benchmark | Chain Count | Depth | Mean (us) | ... | PeakRSS(KB) |
|------------------|-------------|-------|-----------| ... |-------------|
| ChainSingleton | 10 | 5 | 2450000 | ... | 200064 |
```
---
## Add your own benchmark
## Report Formats
1. Create a Dart file with a class inheriting from `BenchmarkBase` or `AsyncBenchmarkBase`.
2. Use the `BenchmarkWithScope` mixin for automatic Scope management if needed.
3. Add your benchmark to bin/main.dart for selection via CLI.
- **pretty** — Tab-delimited table (human-friendly)
- **csv** — Machine-friendly, for spreadsheets/scripts
- **json** — For automation, data pipelines
- **markdown** — Markdown table for docs/wikis/issues
---
## Contributor example
## How to Add Your Own Benchmark
1. Implement a class extending `BenchmarkBase` (sync case) or `AsyncBenchmarkBase`.
2. Configure scenario modules/services using the DI adapter interface.
3. Add scenario selection logic if needed (see bin/main.dart).
4. Optionally extend reporters or adapters for new DI libraries.
Example minimal benchmark:
```dart
class MyBenchmark extends BenchmarkBase with BenchmarkWithScope {
class MyBenchmark extends BenchmarkBase {
MyBenchmark() : super('My custom');
@override void setup() => setupScope([MyModule()]);
@override void run() { scope.resolve<MyType>(); }
@override void teardown() => teardownScope();
@override void setup() { /* setup test DI modules */ }
@override void run() { /* resolve or invoke dependency chain */ }
@override void teardown() { /* cleanup if needed */ }
}
```
To plug in a new DI library, implement DIAdapter and register it in CLI.
---
| Benchmark | Chain Count | Depth | Mean (us) | Median | Stddev | Min | Max | N | ΔRSS(KB) | ΔPeak(KB) | PeakRSS(KB) |
| ----------------- | ----------- | ----- | --------- | ------ | ------ | ----- | ----- | - | -------- | --------- | ----------- |
| RegisterSingleton | 10 | 5 | 23.00 | 44.00 | 21.00 | 2.00 | 44.00 | 2 | 16 | 16 | 200400 |
| ChainSingleton | 10 | 5 | 42.50 | 51.00 | 8.50 | 34.00 | 51.00 | 2 | 64 | 64 | 200592 |
| ChainFactory | 10 | 5 | 42.00 | 48.00 | 6.00 | 36.00 | 48.00 | 2 | 64 | 64 | 200688 |
| AsyncChain | 10 | 5 | 49.00 | 52.00 | 3.00 | 46.00 | 52.00 | 2 | 0 | 0 | 200784 |
| Named | 10 | 5 | 1.00 | 1.00 | 0.00 | 1.00 | 1.00 | 2 | 0 | 0 | 200784 |
| Override | 10 | 5 | 1.50 | 2.00 | 0.50 | 1.00 | 2.00 | 2 | 0 | 0 | 200800 |
## Metrics Collected
All benchmarks record:
- **Time** (microseconds): mean, median, stddev, min, max, timings
- **Memory**:
- memory_diff_kb — change in RSS (KB)
- delta_peak_kb — change in peak RSS (KB)
- peak_rss_kb — absolute peak RSS (KB)
---