Use New Cache Key For Unaggregated Attestations #14590
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saolyn
reviewed
Oct 30, 2024
| @@ -328,3 +326,15 @@ func (s *Service) hasBlockAndState(ctx context.Context, blockRoot [32]byte) bool | |||
| hasState := hasStateSummary || s.cfg.beaconDB.HasState(ctx, blockRoot) | |||
| return hasState && s.cfg.chain.HasBlock(ctx, blockRoot) | |||
| } | |||
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| func seenAttCacheKey(slot primitives.Slot, committeeID primitives.CommitteeIndex, aggregationBits []byte) string { | |||
| totalLen := 8 + 8 + len(aggregationBits) | |||
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It might be helpful to add an explanation of what these numbers represent for anyone unfamiliar with the code. Otherwise they just seem like magic numbers
| @@ -328,3 +326,15 @@ func (s *Service) hasBlockAndState(ctx context.Context, blockRoot [32]byte) bool | |||
| hasState := hasStateSummary || s.cfg.beaconDB.HasState(ctx, blockRoot) | |||
| return hasState && s.cfg.chain.HasBlock(ctx, blockRoot) | |||
| } | |||
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| func seenAttCacheKey(slot primitives.Slot, committeeID primitives.CommitteeIndex, aggregationBits []byte) string { | |||
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A benchmark test would be nice so that we can see the before/after improvements.
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| // Avoid copying to reduce allocation when casting. It is guaranteed to be immutable as the | ||
| // slice is only created in this method and isn't accessed/returned anywhere else. | ||
| return unsafe.String(&key[0], len(key)) // #nosec G103 |
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Can you use the same bytesutil.UnsafeCastToString from #14591 ?
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What type of PR is this?
Optimization
What does this PR do? Why is it needed?
This optimizes the cache key computation for specific attestation and reduces the amount of memory allocated. In certain networks, this is a high traffic path which leads to unnecessary allocation of memory.
Which issues(s) does this PR fix?
Fixes #
Other notes for review
Acknowledgements