AT Execution Time Improvement

[ohager]

• Implementation
• Adjust affected Unit Tests
• Multi-Row inserts for AccountBalance and IndirectIncoming

Improving AT Processing performance by dramatically reducing data base access while steps execution.
Necessary data is being loaded (incrementally) from database into memory on each blocks beginning.
This tackles two observed problems:

1. While processing 47% of time was spent on AT execution

2. A steady decline of synchronization performance (scalability issues)

This solution reduces time spent on AT execution to only 7% and keeps block sync speed stable

Further more two insert queries were changed to allow a chunked multi-value insertion, which runs significantly faster than their prior batched insertion (single insert statements)