Lag Monitoring | BestHub

DeWu Technology

Dec 23, 2021 · Mobile Development

iOS Lag Monitoring and Performance Optimization Using RunLoop and Flame Graphs

The article describes an iOS lag‑monitoring system that detects main‑thread RunLoop blocks, samples stacks every 50 ms into a circular buffer, uses an annealing Fibonacci‑based interval to minimize overhead, visualizes hot paths with flame graphs, and streams data through a Flink‑APM pipeline with only ~2 % CPU and a few megabytes of memory impact.

Flame GraphLag MonitoringRunLoop

0 likes · 12 min read

iOS Lag Monitoring and Performance Optimization Using RunLoop and Flame Graphs

DeWu Technology

Nov 23, 2021 · Mobile Development

iOS Lag Monitoring and Performance Optimization Using Runloop Detection and Flame Graphs

The article describes an iOS lag‑monitoring system that uses RunLoop state checks to detect main‑thread stalls, captures and caches stack traces, employs a Fibonacci‑based annealing algorithm to limit overhead, symbolises addresses on a server, and visualises results with flame graphs while maintaining low CPU and memory impact.

Flame GraphLag MonitoringRunLoop

0 likes · 13 min read

iOS Lag Monitoring and Performance Optimization Using Runloop Detection and Flame Graphs

Aikesheng Open Source Community

Mar 4, 2020 · Databases

Improved MySQL 8 Replication Lag Monitoring Using GTID Timestamps and Performance Schema

The article explains the shortcomings of traditional MySQL replication lag measurement, introduces the community heartbeat‑table approach and its limitations, and then details MySQL 8 enhancements (WL#7319, WL#7374) that embed transaction timestamps in binlog events and expose new performance_schema tables, providing precise SQL queries to monitor lag at various stages of the replication pipeline.

Database AdministrationGTIDLag Monitoring

0 likes · 8 min read

Improved MySQL 8 Replication Lag Monitoring Using GTID Timestamps and Performance Schema