Hello group,
In my efforts to tune an Internet ES40, I have received the following
pointers from the group for tuning the operating system and also tuning the
Apache webserver and Oracle.
For collecting Operating System performance data you can find two useful
toolsets at
ftp://ftp.digital.com/pub/DEC/IAS/sys_check/sys_check.html and
http://www.unix-wissen.de/collect/
For tuning the Operating System you can refer to the
http://www.unix.digital.com/internet/tuning.htm and for tuning the Apache
webserver you can also check out
http://www.apache.org/docs/misc/perf-dec.html
For tuning the Oracle database I was referred to four websites:
www.quest.com and www.savant.com and www.oracle.com and
www.meng.ucl.ac.uk/~joe/oracletune2.htm
Miscellaneous:
Another modification we made was to look at all the daemons started in
/sbin/rc3.d and rename all daemons that we did not utilitize such as S19nfs,
S20nfsmount, S49snmpd, S50insightd, S51envmon, and S65lpd. To prevent these
from starting during a boot up, we renamed the uppercase S to lowercase s.
Example: mv S51envmon s51envmon. These are site specific and also play a
part in the file /etc/rc.config so be careful not to turn off something that
you are using. This change allowed free memory to increase and reduce the
number of processes running
It was interesting to see insightd manager running. This looks to be new
feature in 4.0F. You can actually connect to the server using a web browser
and point to
http://server_ip_address:2301. The server was behind a
firewall so we decided that we did not need to keep this port open so we
stopped the insightd manager running (see the above). In case you are
interested, the setld subset for insightd (Compaq Insight Manager) is
OSFIMSXE440.
We rebuilt the /vmunix kernel to only include the NTP and CDFS options.
This resulted in a tighter running kernel.
After a week of stability testing my customer reports faster performance
than before. Our next step is to investigate tuning the backend Oracle
database. We are waiting for an opportunity to reboot the server to set the
init.ora variable TIMED_STATISTICS = TRUE so that we can start investigating
the resources used by the backend Oracle database.
If I missed anything, please let me know. Happy tuning!
spj_at_itjewell.com
Received on Wed Jun 28 2000 - 04:37:31 NZST