The Combined Impact Of Mitigations On Cascade Lake Following Recent JCC Erratum + TAA

At least MariaDB/MySQL really wasn't affected at least in our test configuration.

PostgreSQL read performance on Cascade Lake was only hit when running with the "TSX + No HT" configuration.

Likewise, the SQLite speedtest just suffered from the TSX Async Abort code.

The context switching performance was hit by the TSX Async Abort when TSX is enabled.

Facebook's RocksDB server software was also hit hard by TAA but not so much the other mitigations.