enabling xdebug remote debug makes apache server very slow

Question

If I enable xdebug by settting xdebug.remote_enable=1, the apache server becomes very slow; once I change the setting to 0, it\'s normal.

I

Answer 1

In my case low performance was caused by having 200+ breakpoints set in PHPStorm which were evaluated on every request by xdebug.

Clearing those breakpoints in PHPStorm increased perfomance from 60 sec to 6 sec per request.