PProf uses profile.proto to analyze data

Can collect command analysis when the program is executed

Run-time data analysis during HTTP service can be collected

Can be analyzed by go test test case

 

There are the following monitoring and analysis functions:

CPU analysis, memory analysis, blocking analysis, mutex analysis, Groutine analysis

 

If it is an http service, then it can be achieved by directly importing this package _ “net/http/pprof”

If you use the gin framework, you need to import this package github.com/gin-contrib/pprof

And register the gin object pprof.Register(g)

 

Directly visit http://service/debug/pprof/ through the browser

You can see the following page

 

 

 The meaning of each parameter is:

allocs: view all past memory allocation sample
blocks: view the stack trace that caused blocking synchronization
cmdline: the complete call path of the command line of the current program
goroutine: view all currently running goroutines stack trace
heap: view the memory allocation of active objects
mutex: View the stack trace
profile of the competing holder that caused the mutex lock : CPU Profiling is performed for 30s by default, and a profile file for analysis is obtained.
threadcreate: View the stack trace of creating a new OS thread

 

Use the interactive command line to analyze the results of the above URL

For example, analyze the resident memory situation

go tool pprof -inuse_space http://localhost:8081/debug/pprof/heap input top command

 

 

 

For example, analyze the temporary allocation of memory

go tool pprof -alloc_objects http://localhost:8081/debug/pprof/heap input top command

 

 

 

Analyze goroutine

 go tool pprof http://localhost:6060/debug/pprof/goroutine You can use traces to see the call stack

The focus is on the independent goroutine that I opened myself, and the bottom one is the call function of the package I wrote.

Read More:

• [Go]Understand the golang project performance analysis tool trace
• How to Set Time Zone in Golang
• Golang: How to determine structure whether it is empty
• Golang: How to Read File All Content in one time
• [vite] Failed to parse source for import analysis because the content contains invalid JS syntax.
• [Solved] Vue Project Modify Page Error: CALL_AND_RETRY_LAST Allocation failed – JavaScript heap out of memory
• [Solved] Project Package Error: Javascript heap out of memory
• CRA 5.0.0 Add Proxy Project Start Error [How to Solve]
• [Solved] Error spawn CMD enoent errno when starting Vue project: – 4058
• Trigger http request when tab page is closed in angular2+ project
• [Solved] Vue Less error: Webpack project report expected indentation of 0 spaces but found 2  
• [Solved] Vue project deploys nginx to refresh the interface 404 Error
• [Solved] electron project Package Error: spawn exe\dll ENOENT
• How to Solve Vue project Startup Error (Node Upgrade issue)
• The vue3 project Error: Cannot find module’vue-loader-v16/package.json’
• JS getting ${pageContext.request.contextPath} Get the root path of the project
• [Solved] Vue Project startup error: no eslint configuration found
• [Solved] Node Create Express Project Error: Failed to lookup view “error“ in views directory
• VScode vue3 Project vetur Error [How to Solve]
• IDEA Project let Report Error [How to Solve]