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67 lines
3.6 KiB
Markdown
67 lines
3.6 KiB
Markdown
# Comparative DI Benchmark Report: cherrypick vs get_it vs riverpod vs kiwi
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## Benchmark Parameters
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- chainCount = 100
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- nestingDepth = 100
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- repeat = 5
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- warmup = 2
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## Benchmark Scenarios
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1. **RegisterSingleton** — Registers and resolves a singleton. Baseline DI speed.
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2. **ChainSingleton** — A dependency chain A → B → ... → N (singleton). Deep singleton chain resolution.
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3. **ChainFactory** — All chain elements are factories. Stateless creation chain.
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4. **AsyncChain** — Async chain (async factory). Performance on async graphs.
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5. **Named** — Registers two bindings with names, resolves by name. Named lookup test.
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6. **Override** — Registers a chain/alias in a child scope. Tests scope overrides.
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---
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## Comparative Table: chainCount=100, nestingDepth=100, repeat=5, warmup=2 (Mean time, µs)
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| Scenario | cherrypick | get_it | riverpod | kiwi | yx_scope |
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|------------------|------------|--------|----------|-------|----------|
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| chainSingleton | 20.6 | 14.8 | 275.2 | 47.0 | 82.8 |
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| chainFactory | 90.6 | 71.6 | 357.0 | 46.2 | 79.6 |
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| register | 82.6 | 10.2 | 252.6 | 43.6 | 224.0 |
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| named | 18.4 | 9.4 | 12.2 | 10.2 | 10.8 |
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| override | 170.6 | 11.2 | 301.4 | 51.4 | 146.4 |
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| chainAsync | 493.8 | 34.0 | 5,039.0 | – | 87.2 |
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## Peak Memory Usage (Peak RSS, Kb)
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| Scenario | cherrypick | get_it | riverpod | kiwi | yx_scope |
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|------------------|------------|--------|----------|--------|----------|
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| chainSingleton | 338,224 | 326,752| 301,856 | 195,520| 320,928 |
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| chainFactory | 339,040 | 335,712| 304,832 | 319,952| 318,688 |
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| register | 333,760 | 334,208| 300,368 | 327,968| 326,736 |
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| named | 241,040 | 229,632| 280,144 | 271,872| 266,352 |
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| override | 356,912 | 331,456| 329,808 | 369,104| 304,416 |
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| chainAsync | 311,616 | 434,592| 301,168 | – | 328,912 |
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---
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## Analysis
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- **get_it** remains the clear leader for both speed and memory usage (lowest latency across most scenarios; excellent memory efficiency even on deep chains).
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- **kiwi** shows the lowest memory footprint in chainSingleton, but is unavailable for async chains.
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- **yx_scope** demonstrates highly stable performance for both sync and async chains, often at the cost of higher memory usage, especially in the register/override scenarios.
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- **cherrypick** comfortably beats riverpod, but is outperformed by get_it/kiwi/yx_scope, especially on async and heavy nested chains. It uses a bit less memory than yx_scope and kiwi, but can spike in memory/latency for override.
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- **riverpod** is unsuitable for deep or async chains—latency and memory usage grow rapidly.
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- **Peak memory (RSS):** usually around 320–340 MB for all DI; riverpod/kiwi occasionally drops below 300MB. named/factory scenarios use much less.
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- **Stability:** yx_scope and get_it have the lowest latency spikes; cherrypick can show peaks on override/async; riverpod is least stable on async (stddev/mean much worse).
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### Recommendations
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- **get_it** (and often **kiwi**, if you don't need async): best for ultra-fast deep graphs and minimum peak memory.
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- **yx_scope**: best blend of performance and async stability; perfect for production mixed DI.
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- **cherrypick**: great for modular/testable architectures, unless absolute peak is needed; lower memory than yx_scope in some scenarios.
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- **riverpod**: only for shallow DI or UI wiring in Flutter.
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---
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_Last updated: August 20, 2025._
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_Please see scenario source for details._
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