Introducing Webbench - HP ML570 - ProLiant - G2 Tuning Manual

Novell NetWare 6 performance tuning guidelines for ProLiant servers
introducing
WebBench
Parameters that had positive effects on the overall throughput performance of the NetBench
test under NetWare 6 are described in table 11.
table 11. NetBench test parameters
NSS Value
CacheBalance
NoSalvage
The current version of this benchmark is WebBench 4.1. The performance results presented
in this section are based on version 4.1. WebBench is a licensed Ziff-Davis Media
Benchmark program that measures the performance of Web servers. It uses LAN attached
clients to issue server requests for static files or a combination of static and dynamic
executables. The static and/or dynamic executables are run in order to produce the data
the server returns to the client. It is used to measure the performance of different Web
server software packages by running WebBench against them on identical server
hardware. Similarly, it is also used to measure the performance of different server
hardware by running a given Web server package and WebBench against the hardware.
For more information on how to obtain a free copy of WebBench, visit:
www.webbench.com/benchmarks/webbench/webbench.asp?visitor=X.
Typically, the I/O workload characteristics of a website are varied based on the content of
the site (static or dynamic) and the type of Web application running on the site. For
example, if the site hosts mainly static content, the network, memory, and processor are
subjected to intense pressure. Similarly, if the content of the site is dynamic, memory,
processor, disk, and network are also affected. On the other hand, if it is e-commerce sites
where compute-intensive secure socket layer (SSL) transactions are involved, then
processor, memory, disk, and the network come under intense pressure.
Knowledge of these subtle but significant differences of the workload characteristics is
helpful in figuring out and isolating performance bottlenecks in your environment.
NetWare 6 has several tools and utilities for monitoring the performance of the above
subsystems. The major ones include:
NetWare Monitor
NetWare Remote Manager
Vtune
You should regularly monitor the subsystems in order to identify potential bottlenecks in
your operating environment. Depending on the types of transactions on your Web server,
the processor could easily become the bottleneck and therefore should be monitored
regularly as well.
Description
Set what percentage of free memory NSS will use for its
buffer cache [Value=85, Range = 1 – 99].
To view the default values, type NSS /CacheStats
Disable salvage of deleted files on the given volume.
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