Why is memory leaking in wordpress and how to catch the culprit Fatal error: Allowed memory size of 536870912 bytes exhausted (php_value memory_limit)?

Question

PHP

New site on WP, no plugins. A simple bootstrap theme.
After a while, when saving the page in the admin panel, an out of memory error pops up.
I change php_value
memory_limit
to a larger value - everything is ok.
After some time (month) - the same thing.
Now the limit does not fit in 512mb, it was 128 initially and everything worked.
Now requires 1200mb. I change - it works.

for all time 200 users 50 posts.

Answer 1

I had a similar experience when I often ruled pages and they had many revisions (200-900), each revision eats memory. Deleted revisions, limited to 10 and no longer ate. You may have something else, but check the revisions.