Optimized Keccak Hashing for Account Storage Slots #6452
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Signed-off-by: Karim Taam <karim.t2am@gmail.com>
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garyschulte
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Jan 24, 2024
datatypes/src/main/java/org/hyperledger/besu/datatypes/StorageSlotKey.java
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Signed-off-by: Ameziane H <ameziane.hamlat@consensys.net>
Signed-off-by: Ameziane H <ameziane.hamlat@consensys.net>
Signed-off-by: Karim Taam <karim.t2am@gmail.com>
Signed-off-by: Karim Taam <karim.t2am@gmail.com>
Signed-off-by: Karim Taam <karim.t2am@gmail.com>
Signed-off-by: Karim Taam <karim.t2am@gmail.com>
Signed-off-by: Karim Taam <karim.t2am@gmail.com>
Signed-off-by: ahamlat <ameziane.hamlat@consensys.net>
Signed-off-by: Ameziane H <ameziane.hamlat@consensys.net>
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...a/org/hyperledger/besu/ethereum/trie/bonsai/worldview/BonsaiWorldStateUpdateAccumulator.java
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Signed-off-by: Karim Taam <karim.t2am@gmail.com>
Signed-off-by: Karim Taam <karim.t2am@gmail.com>
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Regarding performance, there is a clear improvement on block processing with this PR as we can see in the screenshot below
Examining the CPU profiling also reveals the improvement in the Commit phase of block processing. Before this PR 
With this PR 
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matkt
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ahamlat
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Jan 30, 2024
Signed-off-by: Karim Taam <karim.t2am@gmail.com>
matkt
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garyschulte
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changed to Mergeable after @ahamlat confirmed testing regressions were unrelated to this PR |
Signed-off-by: garyschulte <garyschulte@gmail.com>
jflo
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Jan 30, 2024
* not recompute hash if not needed * Add memoize for the Supplier * Modify hashcode to only process keccak when slotkey is not defined * use single cache for keccak Signed-off-by: Karim Taam <karim.t2am@gmail.com> Signed-off-by: Ameziane H <ameziane.hamlat@consensys.net> Signed-off-by: ahamlat <ameziane.hamlat@consensys.net> Signed-off-by: garyschulte <garyschulte@gmail.com>
jflo
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Jan 30, 2024
* not recompute hash if not needed * Add memoize for the Supplier * Modify hashcode to only process keccak when slotkey is not defined * use single cache for keccak Signed-off-by: Karim Taam <karim.t2am@gmail.com> Signed-off-by: Ameziane H <ameziane.hamlat@consensys.net> Signed-off-by: ahamlat <ameziane.hamlat@consensys.net> Signed-off-by: garyschulte <garyschulte@gmail.com>
jflo
pushed a commit
to jflo/besu
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Jan 30, 2024
* not recompute hash if not needed * Add memoize for the Supplier * Modify hashcode to only process keccak when slotkey is not defined * use single cache for keccak Signed-off-by: Karim Taam <karim.t2am@gmail.com> Signed-off-by: Ameziane H <ameziane.hamlat@consensys.net> Signed-off-by: ahamlat <ameziane.hamlat@consensys.net> Signed-off-by: garyschulte <garyschulte@gmail.com> Signed-off-by: Justin Florentine <justin+github@florentine.us>
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PR description
The purpose of this PR is to avoid unnecessary recomputations of the Keccak hash for account storage slots during the commit phase. In most cases, we have already calculated the hashes during the transaction processing phase and can reuse these values. The idea is to add this information to the accumulator, storing each key-to-hash mapping as it's generated during the transaction. At the end of the block, during the commit phase, we will first check the cache before attempting to recalculate the hash.
The cache size should not pose a problem as it will inevitably contain fewer elements than the other maps in the accumulator. This PR also has an added benefit in cases where we need to access the same slot key for two different accounts during the transaction processing phase. In such cases, the hash will only be calculated once.
Fixed Issue(s)