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Ran 15 May 2025 08:40AM UTC

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Build # 15040515749

Build Type

push

github

Committed by

web-flow

Commit Message

CP-307933: avoid serializing/deserializing database fields all the time (#6462)

Builds on top of https://github.com/xapi-project/xen-api/pull/6461

Benchmark results are on individual commits.

The most significant one:

`ministat` confirms a speedup:
```
       Db.Pool.get_all_records  :
           N           Min           Max        Median           Avg        Stddev
       x 432     54115.256     493532.78      56048.42     57937.384      24117.68
       + 524     22642.778     333257.36     23595.495     24679.258     15206.708
       Difference at 95.0% confidence
               -33258.1 +/- 2513.99
               -57.4036% +/- 2.90374%
               (Student's t, pooled s = 19737.2)

       >>>>  Db.VM.set_NVRAM  :
           N           Min           Max        Median           Avg        Stddev
       x 132         36794     2355369.4     1095736.6     1107222.1      298247.5
       + 168     49167.417     1485278.1     678231.31     685636.89     161480.92
       Difference at 95.0% confidence
               -421585 +/- 52835.6
               -38.0759% +/- 3.54275%
               (Student's t, pooled s = 231767)
```

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