This chart shows a single server with different database latencies compared to a server that is co-located with the database under medium to high load. The reference (100%) is when the server is in the same AD as the database.
The y-axis shows Oracle WebLogic Server (WLS) transactions per second (TX/sec) in percent from 0 to 100. The x-axis shows latency between the WLS server and the database (DB) as round-trip time (RTT) in milliseconds (ms).
The chart shows that throughput stays near 100% at 0.3 ms when the server and DB use the same AD, remains almost unchanged at 0.6 ms within the same region but a different AD, and declines to 87% at 6.5 ms when the server and DB operate in different regions.