Slow Server - LOTS of processes - sugg. for speedups?
My server is running Apache 1.3.27. I have a perl program called ad.pl that sits in a cgi-bin directory. It is called from a remote web page like this:
<IFRAME SRC="http://my server/cgi-bin/ad.pl?some_
This program is accessed about 6-10 times every second.
The program connects to MySQL, does a couple lookups, returns some data, and finishes. However, it seems like Apache and Perl are the bottlenecks here. If I run a ps -aux, I get about 100-150 of these Apache processes:
apache 13038 0.0 0.8 82972 4040 ? S 14:50 0:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd_app.
then there's about 10 MySQL processes, and then about 90 or so of these Perl processes:
admin3 24012 0.0 0.6 4296 3072 ? R 15:08 0:00 /usr/bin/perl -w ad.pl
MySQL is running on the my-medium.cnf configuration.
Can anyone offer some additional tips on speeding up Apache and Perl? (One thing that I noticed is that when PHP files run, they don't spawn a bunch of PHP executable processes like /usr/bin/php (like Perl is doing). This is a client's server, so I don't know EXACTLY how the server is set up, but I have a good idea. Thanks in advance!
- Jonathan
<IFRAME SRC="http://my server/cgi-bin/ad.pl?some_
This program is accessed about 6-10 times every second.
The program connects to MySQL, does a couple lookups, returns some data, and finishes. However, it seems like Apache and Perl are the bottlenecks here. If I run a ps -aux, I get about 100-150 of these Apache processes:
apache 13038 0.0 0.8 82972 4040 ? S 14:50 0:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd_app.
then there's about 10 MySQL processes, and then about 90 or so of these Perl processes:
admin3 24012 0.0 0.6 4296 3072 ? R 15:08 0:00 /usr/bin/perl -w ad.pl
MySQL is running on the my-medium.cnf configuration.
Can anyone offer some additional tips on speeding up Apache and Perl? (One thing that I noticed is that when PHP files run, they don't spawn a bunch of PHP executable processes like /usr/bin/php (like Perl is doing). This is a client's server, so I don't know EXACTLY how the server is set up, but I have a good idea. Thanks in advance!
- Jonathan
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Yes, suexec IS a potential security hole. Eliminate it if at all possible.
Launching Perl processes is expensive (in terms of computing power). This is why some Perl-intensive applications (MIMEdefang, for example) use a multiplexor to create a number of reusable Perl sessions. You need to do something like this (to which ahoffman alluded above).
Launching Perl processes is expensive (in terms of computing power). This is why some Perl-intensive applications (MIMEdefang, for example) use a multiplexor to create a number of reusable Perl sessions. You need to do something like this (to which ahoffman alluded above).
ASKER
Thanks for the tips!
ASKER
- Jonathan