Added unit tests for MV HashMap #492
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…rite dependencies between transactions
Create MVHashMap and use it in StateDB
Added tests for executor and two major improvements: 1. Add a dependency map during execution. This will prevent aborted tasks from being sent for execution immedaitely after failure. 2. Change the key of MVHashMap from string to a byte array. This will reduce time to convert byte slices to strings.
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…rite dependencies between transactions
* basic txn prioritizer implemented using mutex map
* Re-execute parallel tasks when there is a read in coinbase or burn address
* Re-execute parallel tasks when there is a read in coinbase or burn address
* using *sync.RWMutex{} in mutexMap
Co-authored-by: Jerry <jerrycgh@gmail.com>
Added tests for executor and some improvements: 1. Add a dependency map during execution. This will prevent aborted tasks from being sent for execution immedaitely after failure. 2. Change the key of MVHashMap from string to a byte array. This will reduce time to convert byte slices to strings. 3. Use sync.Map to reduce the time spent in global mutex. 4. Skip applying intermediate states. 5. Estimate dependency when an execution fails without dependency information. 6. Divide execution task queue into two separate queues. One for relatively certain transactions, and the other for speculative future transactions. 7. Setting dependencies of Txs coming from the same sender before starting parallel execution. 8. Process results in their semantic order (transaction index) instead of the order when they arrive. Replace result channel with a priority queue.
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