Blog¶

Go Tool Pprof

Profile is a common concept among programming languages, it helps to access the program status like CPU, memory usage, and so forth. You may assume that only the languages with runtime could profile, but that's totally wrong. Languages without runtime like C, C++ could profile themselves as well by diverse approaches. For example, the compiler could insert some code instructions for profiling, or the profiler could interrupt the program to record its states periodically.

Half done as I don't have enough knowledge about Go runtime management.

Tracing System Keynotes

This is a keynote blog about the tracing system, including the tracing platform, sdk, the whole work flow, and the problem it wants to solve. It's not a manual or a very detail page to introduce how tracing works.

Go Sync Mutex Implementation

This blog analyzes the implementation of Go sync/mutex after briefing the background knowledge in the previous blog Prerequisite of Go Sync Mutex Implementation.

This blog only concerns mutex.go. It introduces the internal logic of mutex and explains why the mutex shouldn't be copied and why the mutex isn't reentrant.

Prerequisite of Go Sync Mutex Implementation

This blog is split from the blog of sync mutex implementation due to its length. For better reading experience and clearer organization, it's reasonable to make these background knowledge a separated article.

This blog introduces the language level instructions/functions such as atomic and synchronization, the runtime spinning, sleeping and awoken. It also briefs the memory barrier and assembly code in golang.

LLVM IR Emission(1): Overall and Type Emission

This blog briefly introduces the LLVM IR emission practice in Piovt-Language. The pl utilizes the LLVM to generates the backend code and does optimizer with the help of LLVM passes. The emission happens during converting from AST node into the LLVM, coupled with the syntax check as well. In this blog, we focus on the conversion details between LLVM IR and AST, and by the way inspects the ways of type check in a static language.