feat: track epoch transition steps time in metrics #6143
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Performance Report✔️ no performance regression detected Full benchmark results
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Definitely not necessary to track every single step. Some functions are extremely cheap to run, just track the ones that do complex expensive logic, look at the benchmarks for reference |
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wemeetagain
reviewed
Dec 5, 2023
dapplion
reviewed
Dec 6, 2023
| @@ -59,19 +65,31 @@ export function processEpoch(fork: ForkSeq, state: CachedBeaconStateAllForks, ca | |||
| throw new Error("Lodestar does not support this network, parameters don't fit number value inside state.slashings"); | |||
| } | |||
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| let timer = metrics?.epochTransitionStepTime.startTimer({step: "processJustificationAndFinalization"}); | |||
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I don't think it's necessary to use a let here, just declare individual variables. You only need to register labels once
Codecov Report
Additional details and impacted files@@ Coverage Diff @@
## unstable #6143 +/- ##
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+ Coverage 0 90.35% +90.35%
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Files 0 78 +78
Lines 0 8089 +8089
Branches 0 490 +490
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+ Hits 0 7309 +7309
- Misses 0 772 +772
- Partials 0 8 +8 |
wemeetagain
approved these changes
Dec 12, 2023
nflaig
reviewed
Dec 12, 2023
| @@ -59,19 +65,53 @@ export function processEpoch(fork: ForkSeq, state: CachedBeaconStateAllForks, ca | |||
| throw new Error("Lodestar does not support this network, parameters don't fit number value inside state.slashings"); | |||
| } | |||
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| processJustificationAndFinalization(state, cache); | |||
| { | |||
| const timer = metrics?.epochTransitionStepTime.startTimer({ | |||
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would it make sense to have a metric utility function withTimer which just does the instrumentation? could refactor in a separate PR
wemeetagain
approved these changes
Dec 12, 2023
This was referenced Dec 15, 2023
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🎉 This PR is included in v1.13.0 🎉 |
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Motivation
We have unstable epoch transitions and we have no idea which steps take the most time
Description
part of #6112
part of #6063
part of #5409