Render cache alternative [#2665640]

Hi guys!

I recently finished render boost module for Drupal 7:

https://github.com/itpatrol/render_boost/

It's drupal 7 render cache (boost) module. It store cache rendered data in database and if render array is the same (md5sum algo) it uses cached data instead of re-render it every time. Work smart with forms. Require core patching.

You can see results here:
http://drupal7.drupal-site.net/node/199 (no cache, drupal 7) - after opcache warmed up - ~130ms
http://rb.drupal7.drupal-site.net/node/199 (only render_boost enabled for caching) - after opcache and render cache warmed up - ~60ms

You can register and test the same page for authorized user.

I did a test for authorized drupal 8 website the same page:
http://drupal8.drupal-site.net/node/199 - default cache enabled warmed up opcache warmed up - 150ms

Hosting server details: php5.6 memory limit 512M, CPU E5-1650 v3 @ 3.50GHz, HW SSD RAID5