System Administration Guide
Appendix D, Using the crash(ADM) diagnostic tool

Examining the values of kernel tunable parameters

Examining the values of kernel tunable parameters

Use the var command of crash(ADM) to view the values of the major tunable kernel parameters:

> var
v_buf:  30
v_call:  60
v_clist:  12
v_maxup:  20
v_hbuf:   8
v_hmask:   7
v_pbuf:   2
v_nofiles:  60
v_inode:  75		ve_inode:  75
v_s5inode:  75
v_file:  75             ve_file:  75
v_mount:  4             ve_mount:  4
v_proc:  75             ve_proc:  9
...
This report shows the current values of the tunable parameters in the var structure, defined in the <sys/var.h> header file. The names of the values displayed here correspond to those of the tunable parameter; for example, v_proc contains the value of NPROC and v_file contains the value of NFILE. Comments in the header file indicate the tunable for each member and can be used as a reference.

See Appendix B, ``Configuring kernel parameters'' in the Performance Guide for more information about the kernel parameters and how you can change them.