| Compression | Level | Elapsed(s) | Size(MB) | Ratio Time | Ratio Size |
|---|---|---|---|---|---|
| gzip | default | 827.41 | 4722 | 100.00 | 100.00 |
| zstd | default | 262.21 | 4568 | 31.69 | 96.74 |
| zstd | 1 | 261.41 | 4300 | 31.59 | 91.06 |
| zstd | 2 | 257.52 | 4394 | 31.12 | 93.05 |
| zstd | 3 | 254.74 | 4568 | 30.79 | 96.74 |
| zstd | 4 | 257.47 | 4555 | 31.12 | 96.46 |
| zstd | 5 | 297.04 | 4278 | 35.90 | 90.60 |
| zstd | 6 | 432.36 | 4146 | 52.25 | 87.80 |
| zstd | 7 | 517.11 | 4115 | 62.50 | 87.15 |
| zstd | 8 | 665.26 | 3872 | 80.40 | 82.00 |
| zstd | 9 | 707.99 | 3879 | 85.57 | 82.15 |
| zstd | 10 | 1034.67 | 3856 | 125.05 | 81.66 |
| zstd | 11 | 1545.89 | 3833 | 186.83 | 81.17 |
| zstd | 12 | 1561.49 | 3833 | 188.72 | 81.17 |
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The compression was specified using eg: pg_dump --compress=zstd:5
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Decompression of zstd is 2x faster than gzip, regardless of zstd level.