Special case tuning needs
There are circumstances where you will need to tune certain parameters.
A common need is the ability to create very large files.
A user with appropriate privilege can change the ulimit
for the shell process being run by using the
ulimit shell command of
sh(C),
or by modifying the ULIMIT
line in the /etc/default/login file.
Alternately, you can modify the system SFSZLIM for all users.
The SFNOLIM parameter and other commonly encountered limits
are summarized in the following table.
Desired Improvement
|
Parameters
|
Performance improvement.
|
Largely automated.
Some improvement possible depending on which resources your workload uses.
See
``Paging parameters''
and
``Managing system performance''.
|
Users need to create bigger files.
|
SFSZLIM, HFSZLIM
|
Each user needs to open more files.
|
SFNOLIM, HFNOLIM
|
Each user needs to run more processes.
|
MAXUP, NPROC
|
Next topic:
Kernel messages about exceeding system limits
Previous topic:
Autotuned parameters
© 2007 The SCO Group, Inc. All rights reserved.
SCO OpenServer Release 6.0.0 -- 05 June 2007