First, we need the pecl command so we can download and install APC from the repositories. I use the “remi” repo to give me the latest packages, so use “–enablerepo=remi” if you have it installed.
yum install php-pear
But, this will not run on its own, we need the following package for the phpize command:
yum install php-devel
We also need the apxs command, which is installed via the following package:
yum install httpd-devel
Now we have all the software we need, so we install apc via the pecl command:
pecl install apc
I also recommend installing uploadprogress, because Drupal 6 will ask you to do so.
pecl install uploadprogress
Now we have to enable apc and uploadprogress in php.ini.
Add the following lines to /etc/php.ini or wherever your php config file is located.
extension=apc.so
extension=uploadprogress.so
Then we restart Apache:
/etc/init.d/httpd start
And we are all done. Watch for less execution time per page, and decreased memory usage per Apache process compared to what you had
before.
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