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Dict ROLZ 2 byte context experiment #974

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wants to merge 3 commits into from
Closed

Dict ROLZ 2 byte context experiment #974

wants to merge 3 commits into from

Commits on Jun 24, 2024

  1. Experimental ROLZ dicts (1 byte context) 

    ```
BEFORE:

8912 files, 51253563 -> 15870944 (30.97%) - 3970.22 bytes saved/file

ROLZ after LIT:

8912 files, 51253563 -> 15866609 (30.96%) - 3970.71 bytes saved/file

ROLZ after LIT+COPY

8912 files, 51253563 -> 15861266 (30.95%) - 3971.31 bytes saved/file

```
    @klauspost
    klauspost committed Jun 24, 2024
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  2. Dict ROLZ 2 byte context experiment 

    Testing on go source files:

```
8912 files, 51253563 -> 15870944 (30.97%) - 3970.22 bytes saved/file

--->> (ROLZ after COPY&LIT)

8912 files, 51253563 -> 15840596 (30.91%) - 3973.63 bytes saved/file
```

Nothing too crazy here, but better than 1 byte.
    @klauspost
    klauspost committed Jun 24, 2024
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  3. Use short emit and reverse indexing order.

    @klauspost
    klauspost committed Jun 24, 2024
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