Why your variables “escape” to the heap, how that triggers GC pressure, and what every senior Go engineer should understand before optimizing performance
Excellent walkthrough of how escape analysis drives production perf characteristics. The interface boxing trap is particulary insidious because it looks innocent but shows up everywhere in profiling. We had a service doing 40k req/s where just switching from interface{} to concrete types in logging cut GC time by nearly half, which directly improved our p99 latency.
thats great to know, usually interface{} looks harmless when you review code, but when its written in the hotpath such as high load service endpoint flow, it surely can impact performance. thanks for sharing your experience!
Excellent walkthrough of how escape analysis drives production perf characteristics. The interface boxing trap is particulary insidious because it looks innocent but shows up everywhere in profiling. We had a service doing 40k req/s where just switching from interface{} to concrete types in logging cut GC time by nearly half, which directly improved our p99 latency.
thats great to know, usually interface{} looks harmless when you review code, but when its written in the hotpath such as high load service endpoint flow, it surely can impact performance. thanks for sharing your experience!