At 06:41 PM 6/21/02 +0200, Per Einar Ellefsen ([EMAIL PROTECTED]) wrote:

>>As Apache::DBI hasn't been tested with mod_perl 2.0 yet, you will need to:
>>1) make sure you are using the prefork MPM for Apache (as Stas said,
>>   Apache::DBI can only work with that one)
>>2) You will probably need to run mod_perl 2.0 in compat mode: put
>>   PerlModule Apache::compat
>>in your httpd.conf, before loading other modules (like Apache::DBI).

I didn't expect Apache::DBI to work under mod_perl 2.0, at least not well, but was quite surprised.  Today, I got it to work with this server:

Server Version: Apache/2.0.36 (Unix) mod_perl/1.99_03-dev Perl/v5.6.1 DAV/2

Using Per Ellesfsen's suggests, and also pre-loading the following startup.pl script (for compat.pm):

                #!/usr/bin/perl -w
                use strict;
                use Apache2();
                use Apache::compat;
                1;

Rudimentary benchmarks, using a MySQL server, and very simple query, shows that Apache::DBI significantly reduces user response time, and increases the throughput of the server (a very limited single P200 MX system, with only 64MB RAM running RH 7.3):

                                        CGI                             mod_perl
Server Hostname                 192.168.1.1                     192.168.1.1
Server Port                     80                              80
Document Path                   /cgi-bin/zipcodes.cg    /perl/zipcodes.cgi?
                                                zip=”35801”         zip=”35801  
Concurrency Level               10                              10
Elapsed Time                    258.722seconds          63.691 seconds
Complete Requests               200                             200
Failed Requests                 0                               0
Total Transferred               127000  bytes           131843 bytes
HTML Transferred                        89200 bytes                     90200 bytes
Requests per Second             0.77                            3.20
Median Connection Times         12518 ms                        424 ms
Transfer Rate                   0.48Kbps received               2.05Kbps received

---
Charles Aulds, MCSE, MCP+I
Voice: (256) 931-5593      Fax: (240) 352-8290
http://hiwaay.net/~caulds

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