You must be talking to Petr https://moodle.org/mod/forum/discuss.php?d=223564#p972043, you have replied to my post: https://moodle.org/mod/forum/discuss.php?d=223564#p972729, and the follow up to my post should be in the "Moodle community sites" forum: https://moodle.org/mod/forum/discuss.php?d=223834.
Yes, your edit is in the open: http://docs.moodle.org/23/en/index.php?title=Performance_recommendations&action=historysubmit&diff=102588&oldid=102366. But the problem is not solved, because the caching is different amoung the Moodle versions (1.9, 2.0, 2.2, ...). See the discussions linked to the post in the "Moodle community sites" forum.
Hardware and performance
Caching web pages to enhance performance--where to include directives
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