One hour of New Relic to solve a critical performance issue

The screenshot below shows you the backend processing times for a WordPress site with a big performance issue in New Relic’s APM tool.

Using the New Relic APM

In this case there was a query that returned 170 000 rows of data PHP had to process on about 80% of the requests. Took me 5 minutes to find the problem and 55 minutes to get the fix pushed to production.

Expect a bigger blog post about New Relic very soon.

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