15011432964
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Ran 14 May 2025 03:16AM UTC

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Committed 13 May 2025 10:02AM UTC coverage: 77.719%. Remained the same

Build # 15011432964

Build Type

push

github

Committed by

web-flow

Commit Message

CP-307958: small DB improvements and benchmarks (#6461)

We were converting events to RPC.t twice: first using the internal OCaml
names, and then mapping them back to some "wire" names. This can be done
a lot more simply by generating the wire names in the first place (the
ppx support overriding the wire name of fields).

  `ministat` confirms an improvement on `rpc_of_event`:
```
      N           Min           Max        Median           Avg        Stddev
x  922     440.79126     46094.975     467.83727     563.79259     1676.0843
+ 1131     51.346821     33407.866     58.715393     115.98006     1105.4178
  Difference at 95.0% confidence
            -447.813 +/- 120.966
             -79.4286% +/- 13.1488%
           (Student's t, pooled s = 1390.95)
```

Atomic is also faster than an integer wrapped with a mutex:
```
Mutex+incr (ns):
 { monotonic-clock per run = 32.272091 (confidence: 32.365531 to 32.170138);
 r² = Some 0.999441 }
Atomic.incr (ns):
 { monotonic-clock per run = 2.938678 (confidence: 2.944486 to 2.933688);
   r² = Some 0.999857 }
```

I've added some new new benchmarks for event field conversion, atomic vs
mutex and DB field writes.

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ID	Job ID	Ran	Files	Coverage
1	python3.11 - 15011432964.1	14 May 2025 03:16AM UTC	33	77.72	GitHub Action Run

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