Sun Microsystems Netscape Enterprise Server, Administrator'S Manual

Page: 221 / 532

Chapter 10, Configuring the Server for Performance 221
Unix Platform-Specific Issues
Encrypting your Enterprise Server’s data streams with SSL makes an
enormous difference to your site’s credibility for electronic commerce and
other security-conscious applications, but it also can seriously impact your
CPUs performance. Note that SSL always has a significant impact on
throughput, so minimize your use of SSL for best performance. Also,
multiple CPUs help SSL, so consider buying a multi-CPU server if you need
to use SSL.
• Size of document tree
• Dynamic vs. static content
The content you serve affects your server’s performance. An Enterprise
Server delivering mostly static HTML can run much faster than a server that
has to execute CGIs for every query.
Unix Platform-Specific Issues
The various Unix platforms all have limits on the number of files that can be
open in a single process at one time. For busy sites, increase that number to
1024.
• Solaris : in
/etc/system,
set
rlim_fd_max,
and
reboot
.
• SGI: run
systune -i,
set
rlimit_nofile_max,
rlimit_nofile_cur
, and then reboot.
• AIX: run
smit
and check the kernel tuning parameters.
• HP-UX: run
sam
and check the kernel tuning parameters.
These Unix platforms have proprietary sites for additional information about
tuning their systems for web servers:
• AIX -
http://www.rs6000.ibm.com/resource/technology/
sizing.html
• IRIX -
http://www.sgi.com/tech/web/
• Digital -
http://www.unix.digital.com/internet/tuning.htm
• SUN -
http://www.sun.com/sun-on-net/performance/
book2ref.html