There are changes in “Replication Server—Advanced Services Option” in Chapter 4, “Performance Tuning.”
Enhanced DSI Efficiency – the default setting for dsi_cmd_prefetch has been changed to off.
Enabling NRM Thread in Enhanced RepAgent Executor Thread Efficiency – the default setting for nrm_thread has been changed to off.
Enhanced Distributor Thread Read Efficiency – replace text with:
Enables the distributor (DIST) thread to read SQL statements directly from the Stable Queue Thread (SQT) cache. This reduces the workload from SQT and the dependency between the two, and improves the efficiency of both SQT and DIST. Use the dist_direct_cache_read parameter with configure replication server to use this enhancement:
configure replication server set dist_direct_cache_read to ‘on’
By default, dist_direct_cache_read is set to off. The distributor thread requests SQL statements from SQT through the message queue.
dist_direct_cache_read is a server-level static parameter. You must restart Replication Server after you enable or disable the parameter.