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Move ApplyTx benchmarks to using a fixed seed. #2568

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merged 2 commits into from
Dec 6, 2021
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@nc6 nc6 commented Dec 2, 2021

This should prevent problems where serialisation changes result in
broken benchmarks. Additionally, we now test Allegra and Mary era
transactions.

Unfortunately this means a discontinuity with existing benchmark runs,
but should prevent future discontinuities.

@nc6 nc6 requested a review from lehins December 2, 2021 13:39
@nc6 nc6 force-pushed the nc/bench-rewrite branch 2 times, most recently from e46210e to 1f2748e Compare December 2, 2021 14:06
This should prevent problems where serialisation changes result in
broken benchmarks. Additionally, we now test Allegra and Mary era
transactions.

Unfortunately this means a discontinuity with existing benchmark runs,
but should prevent future discontinuities.
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I have one comment about benchmarks, which hasn't been touched by this PR, but it is important:

applyTxsTransition returns a tuple, which means it is not enough to evaluate it to whnf, it has to be nf in this benchmark:

https://github.com/input-output-hk/cardano-ledger/blob/4e2d082d3a01d8a172d0659b9c6d7f56689570ca/libs/cardano-ledger-test/bench/Bench/Cardano/Ledger/ApplyTx.hs#L120-L127

If NFData instance is a problem at least replacing id with

\(x, y) -> x `seq` y `seq` (x, y)

would be a good idea.

@nc6 nc6 merged commit e7b7773 into master Dec 6, 2021
@iohk-bors iohk-bors bot deleted the nc/bench-rewrite branch December 6, 2021 11:41
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2 participants