Intel 170 Servers, AS/400 RISC Server manual RR & Acrr Performance, TCP/IP Secure Performance

RR & ACRR Performance

(Transactions per second per server CPU)

Transaction Type	Threads	1 Gigabit	Virtual
Request/Response	1	991.32	873.62
(RR) 128 Bytes	26	1330.45	912.34
Asym. Connect/Request/Response	1	261.51	218.82
(ACRR) 8K Bytes	26	279.64	221.21
Notes:
y Capacity metrics are provided for nonsecure transactions
y The table data reflects System i as a server (not a client)
y The data reflects Sockets and TCP/IP
y This is only a rough indicator for capacity planning. Actual results may differ significantly.
y All measurement where taken with Packet Trainer off		(See 5.6 for line dependent performance enhancements)

Here the results show the difference in performance for different Ethernet cards compared with Virtual Ethernet. We also added test results with multiple threads to give an insight on the performance when a system is stressed with multiple sessions.

This information is of similar type to that provided in Chapter 6, Web Server Performance. There are also capacity planning examples in that chapter.

5.5 TCP/IP Secure Performance

With the growth of communication over public network environments like the Internet, securing the communication data becomes a greater concern. Good examples are customers providing personal data to complete a purchase order (SSL) or someone working away from the office, but still able to connect to the company network (VPN).

SSL

SSL was created to provide a method of session security, authentication of a server or client, and message authentication. SSL is most commonly used to secure web communication, but SSL can be used for any reliable communication protocol (such as TCP). The successor to SSL is called TLS. There are slight differences between SSL v3.0 and TLS v1.0, but the protocol remains substantially the same. For the data gathered here we only use the TLS v1.0 protocol. Table 5.6 provides some rough capacity planning information for SSL communications, when using 1 Gigabit Ethernet.

IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
© Copyright IBM Corp. 2008	Chapter 5 - Communications Performance	69