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flate: Add limited window compression #843

Merged
merged 1 commit into from
Aug 9, 2023
Merged

flate: Add limited window compression #843

merged 1 commit into from
Aug 9, 2023

Commits on Aug 1, 2023

  1. flate: Add limited window compression 

    Adds a medium compressor that can operate with limited window size.

Exposed in gzip outside deflate for now.

Example sizes:

```
=== RUN   TestFileWindow/32
    gzip_test.go:349: size: 82504 bytes
=== RUN   TestFileWindow/64
    gzip_test.go:349: size: 75350 bytes
=== RUN   TestFileWindow/128
    gzip_test.go:349: size: 70668 bytes
=== RUN   TestFileWindow/256
    gzip_test.go:349: size: 69276 bytes
=== RUN   TestFileWindow/512
    gzip_test.go:349: size: 68327 bytes
=== RUN   TestFileWindow/1024
    gzip_test.go:349: size: 67876 bytes
=== RUN   TestFileWindow/2048
    gzip_test.go:349: size: 40900 bytes
=== RUN   TestFileWindow/4096
    gzip_test.go:349: size: 38684 bytes
=== RUN   TestFileWindow/8192
    gzip_test.go:349: size: 36263 bytes
=== RUN   TestFileWindow/16384
    gzip_test.go:349: size: 35434 bytes
=== RUN   TestFileWindow/32768
    gzip_test.go:349: size: 34654 bytes
--- PASS: TestFileWindow (0.03s)
```

Limited testing done.
    @klauspost
    klauspost committed Aug 1, 2023
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