HP-UX IPFilter Performance White Paper

TCP Connect, Request, and Response (CRR) Transaction Test

Results

The netfperf connect, request, and response (CRR) test provides performance data for TCP

transactions. Each transaction consists of the following events:

• The netperf client and server establish a TCP connection

• The netperf client sends a request to the server

• The netserver server sends a response to the client

HP measured CRR performance with varying request and response packet sizes, including 128-byte

request packets with 8192-byte response packets. This configuration simulates communication with an

HTTP or FTP server, where the requestor sends a relatively small request and the responder sends a

relatively large response.

This document includes the following data from TCP CRR tests, as measured on the responder

(netserver) system:

• TCP CRR Transaction Rate

The number of CRR transactions per second.

• TCP CRR Responder CPU Utilization

The percentage of the system CPU capacity used on the responder.

• TCP CRR Responder Service Demand

The number of microseconds of CPU time required to process one KB of outbound data on the

responder.