benwtrent commented on PR #14304:
URL: https://github.com/apache/lucene/pull/14304#issuecomment-2697969649
I compared this branch with main. There are measurable improvements, but the
quantization step isn't the main bottle neck. Vector comparisons still dominate
the costs. But, its a nice bump I would say.
candidate:
```
recall latency (ms) nDoc topK fanout maxConn beamWidth quantized
index s index docs/s force merge s num segments index size (MB) vec disk
(MB) vec RAM (MB)
0.826 2.340 500000 100 50 32 100 7 bits
86.54 5777.61 337.47 1 1859.34
1831.055 366.211
```
baseline:
```
recall latency (ms) nDoc topK fanout maxConn beamWidth quantized
index s index docs/s force merge s num segments index size (MB) vec disk
(MB) vec RAM (MB)
0.828 2.680 500000 100 50 32 100 7 bits
88.48 5650.74 357.45 1 1859.57
1831.055 366.211
```
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