Method and System for Transaction Controlled Sampling of Distributed Hetereogeneous Transactions without Source Code Modifications

摘要

A system and method for tracing individual transactions at the granularity of method calls uses instrumentation based transaction tracing mechanisms to enhance thread call stack sampling mechanisms by a) only sampling threads executing monitored transactions while execution is ongoing; and b) tagging sampled call stacks with a transaction ID for correlation of sampled call stacks with instrumentation based tracing data. The combination of instrumentation based tracing with thread call stack sampling reduces sampling generated overhead by only sampling relevant threads, and reduces instrumentation generated overhead because it allows reducing instrumentation.