If we install new relic on a linux server, will it cause a delay in page loading time? I have installed new relic and it seems that it is causing some delay in page loading time.
Can anyone confirm me?
Thanks in advance.
Via https://discuss.newrelic.com/t/will-newrelic-server-monitoring-affect-my-server-performance/4051:
We do extensive testing and estimate our overhead impact to be roughly 5% (+/- a few points) as it relates to CPU impact on the box and application response time. This is based on a number of different frameworks and load patterns we test with, as well as our default instrumentation (byte code probes). Given that the Server Monitors do much less instrumentation than our language agents, and mostly just query data, we would expect this number to be even lower. Since every application and server is different, we always encourage customers to run their own tests in a pre-production environment to validate overhead and let us know if they encounter anything different. Based on our current traffic (datacenter bandwidth divided by number of agents reporting), we calculate each agent consumes an average of 0.0008 Mb/s (megabytes/second) ~ 838 bytes/second, or roughly 50K bytes/minute.
So yes, there is probably a measurable effect but it should be small.