HP-UX 11i March 2002 Release Notes

HP-UX 11i Operating Environment Applications
Selectable Applications
Chapter 4
102
• Web Sites:
— http://techsolutions.hp.com/ipfilter/ipfilter_homex.html
— http://software.hp.com
— http://docs.hp.com
Java Out-of-Box (JAVAOOB)
new for
March 2002
Java Out-of-Box (JAVAOOB), version 1.0.00, is a small, installable product that modifies
HP-UX kernel parameters and system tunables to allow large server-side Java
applications to run.
While no claim is made that JAVAOOB will enable all Java applications to run (or that it
will cause any particular Java application to exhibit optimum performance), the
JAVAOOB parameter values were chosen to enable the widest range of Java applications
to run successfully without significant impact on other (non-Java) processes. (The
original default settings were too low to run the majority of Java applications.)
JAVAOOB modifies the following kernel parameters and system tunables:
maxusers 512
nproc 2048
max_thread_proc 3000
nkthread 6000
nfile 3000
maxfiles 2048
maxfiles_lim 2048
ncallout 6000
maxdsiz 2063835136
tcp_conn_request_max 2048
NOTE JAVAOOB will not lower a parameter setting. If the current value of a parameter is
higher than the value that JAVOOB would set, then JAVAOOB leaves the parameter
value unchanged.
In addition to being provided through the OE media, JAVAOOB is available for
download from http://www.hp.com/go/java.
Impact
Installing JAVAOOB will increase the amount of memory used by the kernel by
approximately 8Mb above that used by the default settings. In theory, a system that is
memory-bound, close to the edge, and running memory-intensive applications could
experience additional paging activity, thereby lowering system or application
performance.
Installation Requirements
Since it is intended for large, server-side Java applications, JAVAOOB is recommended
only for systems with at least 512 Mb of physical memory (and not for systems used
solely as desktops.)