Fastcgi-2.4.SNAP + Error500

[menki]

i have removed the fastcgi 2.4.7 and i have installed the 2.4.2 version again. in the fcgi 2.4.7 i have 40% more cpu load and all sites are very slow. with fcgi 2.4.2 i have one error 500 in 3-4 hours....hmmm

this is my fastcgi_ispcp.conf

Code:

<IfModule mod_fastcgi.c>
        FastCgiWrapper On
        FastCgiIpcDir /var/lib/apache2/fastcgi2

        FastCgiConfig -minProcesses 1 \
                  -maxProcesses 400 \
                  -maxClassProcesses 6 \
                  -multiThreshold 80 \
                  -killInterval 60 \
                  -startDelay 5
                  # -singleThreshold 100 \
                  # -autoUpdate \
                  # -pass-header HTTP_AUTHORIZATION

        FastCgiServer /var/www/fcgi/master/php5-fcgi-starter -user vu2000 -group vu2000 -idle-timeout 300

        #
        # PHP5 SUPPORT
        #

        AddHandler php-fastcgi .php .php5

        <Location /php5/php5-fcgi-starter>
                SetHandler fastcgi-script
                Options +ExecCGI
        </Location>

        Action php-fastcgi /php5/php5-fcgi-starter
        AddType application/x-httpd-php .php .php5
</IfModule>

i can live with some daily errors and my network is fast and stable.

i have tried to setup:

-maxProcesses 600
-maxClassProcesses 12 \
-multiThreshold 100 \

but this not work. i have optimized the mysql tables with tunning-primer.sh script. i have modified in the apache.conf the max_connections and keepalive directives. nothing helps....

do you have another idea ?

thank you

MENKI