Custom Compressor for predicting the CPU and IO cost of the block level compression #13711
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Summary:
This pull request implements the prediction aspect of auto-tuning compression in RocksDB, as part of Milestone 2. The goal is to optimize compression decisions to meet a given CPU and IO budget, based on the predicted CPU time and result compression ratio for compression decisions on a data block.
Test Plan:
Ran unit tests to verify accuracy of predicted CPU and IO cost
Ran benchmark tests to evaluate performance impact of new algorithm
Verified that optimization does not compromise overall system performance