I wrote a plugin for WordPress for a client. Now the customer writes the plugin would not work, because with accesses of 3 users the website generates a server overload. I can not imagine that this is so, but I have to go into it. How can I find out which script caused this overload? I have no clue where to look.
I do not use complex database queries, and use the WordPress features. It can not be an endless loop either. I have gone through all the possibilities, but come to no result. How can one find out the causer?
Does anyone know advice?
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