Home Brewing R.U.M - Analyzing application performance with real user monitoring
summary
Describes building an in-house real user monitoring pipeline that captures page load, jank, AJAX and custom metrics via JavaScript instrumentation, breaks total latency into network vs server vs client times using the Navigation Timing API and XHR interception, and ships events to a backend for aggregation. Demonstrates a small demo instrumenting ~3 pages, stores and indexes data in ElasticSearch + Kibana for dashboards, sets threshold alerts and shows how automatic rollback can trigger from performance regressions.
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chapters (10)
- 0:00Start
- 4:01Measuring Page Load Performance
- 7:27Measuring AJAX Call Performance
- 8:22Monkey Patching XMLHttpRequest
- 10:07Wrapper for Reporting Error
- 10:34Challenges in Error Tracking
- 12:29JavaScript Engine Building Blocks
- 12:42Abstract Syntax Tree
- 13:46Instrumentation
- 15:04Analysis & Visualization
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