vsop-479 commented on PR #14477:
URL: https://github.com/apache/lucene/pull/14477#issuecomment-4506173518
### Benchmark setup
- Benchmark: `FSTEnumSeekBenchmark`
- Mode: `Throughput` (`ops/us`, higher is better)
- JMH params:
- `-bm thrpt -tu us -wi 5 -i 5 -w 1s -r 1s -f 2`
- `termCount=50000`
- `queryCount=20000`
- `queryMode=exactHit,nearMiss,farMiss`
- `termDistribution=uuidPrefix,clustered`
- JDK: 25.0.1
---
### `uuidPrefix` (branch vs `main`)
| Benchmark | Query Mode | Branch (ops/us) | Main (ops/us) | Delta |
|---|---|---:|---:|---:|
| `seekCeil` | `exactHit` | 1.901 | 1.680 | **+13.16%** |
| `seekCeil` | `nearMiss` | 1.241 | 1.288 | -3.65% |
| `seekCeil` | `farMiss` | 34.141 | 34.357 | -0.63% |
| `seekExact` | `exactHit` | 2.074 | 2.072 | +0.13% |
| `seekExact` | `nearMiss` | 2.102 | 2.033 | **+3.40%** |
| `seekExact` | `farMiss` | 27.785 | 29.119 | -4.58% |
| `seekFloor` | `exactHit` | 1.784 | 1.673 | **+6.64%** |
| `seekFloor` | `nearMiss` | 1.777 | 1.680 | **+5.77%** |
| `seekFloor` | `farMiss` | 2.836 | 2.659 | **+6.64%** |
---
### `clustered` (branch vs `main`)
| Benchmark | Query Mode | Branch (ops/us) | Main (ops/us) | Delta |
|---|---|---:|---:|---:|
| `seekCeil` | `exactHit` | 3.732 | 3.379 | **+10.44%** |
| `seekCeil` | `nearMiss` | 3.586 | 3.231 | **+11.00%** |
| `seekCeil` | `farMiss` | 78.517 | 73.988 | **+6.12%** |
| `seekExact` | `exactHit` | 4.525 | 4.701 | -3.76% |
| `seekExact` | `nearMiss` | 4.962 | 4.538 | **+9.35%** |
| `seekExact` | `farMiss` | 51.873 | 52.527 | -1.25% |
| `seekFloor` | `exactHit` | 3.557 | 3.334 | **+6.69%** |
| `seekFloor` | `nearMiss` | 2.788 | 3.386 | -17.66% |
| `seekFloor` | `farMiss` | 4.961 | 4.864 | **+1.99%** |
---
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