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We are using the New Relic PHP agent on a Laravel 7 application running on PHP7.4 on an Ubuntu server. We’re finding that when load testing our application:
- New Relic Disabled: response times at a steady ~200ms
- New Relic Enabled: responses times climb quickly to 600 - 1000ms
We tried disabling “transaction_tracer.detail” and it showed little improvement.
As of now, it seems we can no longer run New Relic in Production because the performance hit is far too much. Is there anything we’re missing that might help performance-wise? I’d understand a small performance penalty for monitoring, but 4-5x is too much.