mysql - reducing execution time of indivual php files that are not mandatory to the system like Ajax JSON requests -

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i want make sure ajax responses dynamic json pages not slow down server when sql queries take long. i'm using php, mysql apache2. had idea use ini_set() recude execution of pages inline use of mentioned method or set_time_limit() method. effective? alternatives or mysql syntax equivalent query time?

these being used example jquery ui autosuggestions , things better not work if gonna slow down server.

if makes sense application, go ahead , set_time_limit desired max execution time. however, makes more sense tweak queries , introduce caching of query results.


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