docs: add multi-language documentation (ru, fa, zh, tr, ar)
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# 性能指南
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## 基准测试方法论
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所有基准测试使用:
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- **编译器**: Nim 2.2.0 配合 `-d:release --opt:speed`
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- **CPU**: AMD Ryzen 9 5900X (12 cores / 24 threads)
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- **内存**: 64 GB DDR4-3600
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- **存储**: Samsung 980 Pro NVMe SSD
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```bash
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nim c -d:ssl -d:release -r benchmarks/bench_all.nim
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```
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## 存储引擎基准测试
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### LSM-Tree 键值
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| 指标 | 值 |
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|------|-----|
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| 写入吞吐量 | ~580,000 ops/s |
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| 读取吞吐量 | ~720,000 ops/s |
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| 平均写入延迟 | 1.7 µs |
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| 平均读取延迟 | 1.4 µs |
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### B-Tree 索引
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| 指标 | 值 |
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|------|-----|
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| 插入吞吐量 | ~1,200,000 ops/s |
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| 点查询吞吐量 | ~1,500,000 ops/s |
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| 范围扫描 (1000 keys) | ~0.3 ms |
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## 向量引擎基准测试
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### HNSW 索引
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| 指标 | 值 |
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|------|-----|
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| 插入 (dim=128) | ~45,000 vectors/s |
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| 搜索 top-10 (n=100K) | ~8 ms |
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| 每向量内存 (dim=128) | ~580 bytes |
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参数: `M=16`, `efConstruction=200`, `efSearch=64`。
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### SIMD 距离函数
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| 操作 | dim=128 | dim=768 | dim=1536 |
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|------|---------|---------|----------|
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| Cosine distance | 4.2M/s | 850K/s | 420K/s |
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| L2 (Euclidean) | 4.5M/s | 920K/s | 450K/s |
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| Dot product | 4.8M/s | 980K/s | 480K/s |
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## 协议基准测试
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| 协议 | 连接数 | 查询/秒 | p99 延迟 |
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|------|--------|---------|----------|
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| Binary (localhost) | 1 | 45,000 | 0.4 ms |
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| Binary (localhost) | 100 | 380,000 | 1.2 ms |
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| HTTP/REST | 1 | 12,000 | 2.1 ms |
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| HTTP/REST | 100 | 95,000 | 5.8 ms |
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## 调优指南
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### 写密集型工作负载
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```bash
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BARADB_MEMTABLE_SIZE_MB=256
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BARADB_WAL_SYNC_INTERVAL_MS=10
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BARADB_COMPACTION_INTERVAL_MS=30000
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```
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### 读密集型工作负载
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```bash
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BARADB_CACHE_SIZE_MB=1024
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BARADB_BLOOM_BITS_PER_KEY=10
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BARADB_COMPACTION_INTERVAL_MS=120000
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```
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### 向量搜索
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```bash
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BARADB_VECTOR_EF_CONSTRUCTION=200
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BARADB_VECTOR_EF_SEARCH=128
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BARADB_VECTOR_M=32
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```
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### 图分析
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```bash
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BARADB_GRAPH_PAGE_RANK_ITERATIONS=20
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BARADB_GRAPH_LOUVAIN_RESOLUTION=1.0
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```
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