[CASSANDRA-8075] Make netty pipeline fully async

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Duplicate
• Fix Version/s: 2.2.0 beta 1
• Labels: performance
• Assignee: Unassigned
• Reporter: T Jake Luciani
• Created: 07/Oct/14 19:17
• Updated: 16/Apr/19 09:31
• Resolved: 09/Oct/14 19:53

Description

Related to CASSANDRA-5239. Netty does much better if we remove the request thread pool jump.

Here is a benchmark of our netty pipeline returning a static value (so no actual cassandra processing). When the thread pool is removed we see a dramatic improvement.

http://cstar.datastax.com/graph?stats=64ed5186-4e51-11e4-a8d5-bc764e04482c&metric=op_rate&operation=2_user&smoothing=1&show_aggregates=true&xmin=0&xmax=228.25&ymin=0&ymax=150217.1

On my laptop using the async branch can match redis bench on the same machine ~160k ops/sec.

Issue Links

• is blocked by: CASSANDRA-5239 Asynchronous (non-blocking) StorageProxy
• Is contained by: CASSANDRA-5239 Asynchronous (non-blocking) StorageProxy