Simulator zh CN
模拟器中包含一系列的驱逐策略和数据分发生成器。这将帮助我们了解各个驱逐策略是否适合使用场景。
在配置完所需要的 配置之后，在IDE中运行模拟器。或者也可以选择在命令行中使用:
# Single run, displays ascii table by default
gradlew simulator:run -q
# Multiple runs, writes a combined report, and renders a chart
gradlew simulator:simulate -q \
--maximumSize=<comma separated list; supports _ numeric literal> \
--theme=<light, dark> \
--title=<optional>
# In both, additional configuration may be supplied as system properties
-Dcaffeine.simulator.files.paths.0=multi3.trace.gz
# and custom jvm arguments can be provided
-PjvmArgs=-Xmx6g
命令。支持以下几种追踪格式：
| 仓库 | 位置 | 仓库 | 位置 |
|---|---|---|---|
| AdaptSize | author's simulator | Address (UCSD) | git repository |
| ARC | git repository | Cache2k | git repository |
| Cachelib | project's homepage | CameLab | project's homepage |
| Corda | git repository | GL-Cache | project's homepage |
| Gradle | git repository | Kaggle | project's homepage |
| libCacheSim | author's simulator | LIRS | git repository |
| LRB | author's simulator | Scarab | git repository |
| SNIA | project's homepage | Tragen | project's homepage |
| project's homepage | UMass | project's homepage | |
| WikiBench | project's homepage |
由于批处理和数据广播的原因，时间指标只有在独立运行各个策略的时候才有比较的价值。
╔══════════════════════╤══════════╤════════════╤════════════╤════════════╤════════════╤═══════════╗
║ Policy │ Hit Rate │ Hits │ Misses │ Requests │ Evictions │ Time ║
╠══════════════════════╪══════════╪════════════╪════════════╪════════════╪════════════╪═══════════╣
║ opt.Clairvoyant │ 48.09 % │ 21,019,597 │ 22,685,382 │ 43,704,979 │ 18,685,382 │ 2.301 min ║
╟──────────────────────┼──────────┼────────────┼────────────┼────────────┼────────────┼───────────╢
║ sketch.WindowTinyLfu │ 45.25 % │ 19,775,085 │ 23,929,894 │ 43,704,979 │ 19,929,894 │ 1.460 min ║
╟──────────────────────┼──────────┼────────────┼────────────┼────────────┼────────────┼───────────╢
║ irr.Lirs │ 38.14 % │ 16,668,577 │ 27,036,402 │ 43,704,979 │ 23,036,402 │ 1.319 min ║
╟──────────────────────┼──────────┼────────────┼────────────┼────────────┼────────────┼───────────╢
║ adaptive.Arc │ 29.60 % │ 12,938,241 │ 30,766,738 │ 43,704,979 │ 26,766,738 │ 1.249 min ║
╟──────────────────────┼──────────┼────────────┼────────────┼────────────┼────────────┼───────────╢
║ linked.Lru │ 20.24 % │ 8,847,982 │ 34,856,997 │ 43,704,979 │ 30,856,997 │ 1.218 min ║
╚══════════════════════╧══════════╧════════════╧════════════╧════════════╧════════════╧═══════════╝
