Litespeed memcached for wordpress

I’m setting up a new website for Vietnam Gamedev community. After reading many reviews and benchmark articles, I decided to use litespeed over nginx.

Since I have coupon code for trial use with Linode, I created two linodes (one ubuntu, one debian) with the image from litespeed, refer from their guideline https://docs.litespeedtech.com/cloud/images/wordpress/ .

I tested both linodes and see the debian one have better speed with short response time

One issue take me hours to fix is the status of Memcache and Redis extension is Disabled and Connection test is Failed.

After reseaching, I found out that the original image from Litespeed did not install the PHP Extension Memcached. In my case, I need to run the following command to install it:

apt-get install lsphp80-memcached

service memcached restart

service memcached status

Finally I can see the memcached Extension is Enable in the Wordpress admin. Connection Test is Passed as well.