NFS Performance Tuning for HP-UX 11.0 and 11i Systems

nfs performance tuning for hp-ux 11.0 and 11i systems page 114
Notes:
Page 114July 22, 2002
Copyright 2002 Hewlett- Packard Company
kernel parameter
tuning
• Which kernel parameters
directly affect NFS
performance?
• Inspecting kernel
parameters
• Monitoring kernel
parameter usage
Since NFS spends the majority of its time running in the kernel, it should come as
no surprise that there are many kernel parameters that can positively or negatively
impact NFS performance. Like most other facets of system performance, there is
not one universal setting for kernel variables that will work for every client or server
in every environment. The values described in this section are merely
recommendations for starting values. You should perform extensive testing with
your applications in your environment to determine the optimal settings for these
variables on your systems.
In addition to describing the parameters, this section describes several tools
available for inspecting the current values of these parameters. Also described are
the tools that allow you to monitor the utilization rate of some of the key
parameters.