Golang framework performance indicator optimization FAQs

Problems and solutions: Performance indicator measurement: Use performance analysis tools (such as pprof) to analyze CPU, memory and other indicators. Memory usage reduction: avoid global variables, use memory pools, utilize structure pointers. Improved responsiveness: Use goroutine/channel to execute tasks in parallel, and use cache/index to improve query performance. Network latency reduction: Use connection pooling, leverage CDN/edge computing, and perform local caching. Log performance optimization: Use a logging framework (such as logrus), configure log level/format, and consider asynchronous logging.

Golang Framework Performance Indicator Optimization FAQ

Question 1: How to measure the performance of the Golang framework?

Code example:

import "net/http"

func main() {
    http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
        // 业务逻辑
    })
    http.ListenAndServe(":8080", nil)
}

Solution:
Use performance analysis tools, such as pprof or go tool pprof, to analyze The CPU, memory, network and other indicators of the application.

Question 2: How to reduce the memory usage of Golang programs?

Code example:

type User struct {
    Email string
    Name string
}

func storeUsers(users []User) {
    for _, user := range users {
        // 将用户存储到数据库或其他持久性存储中
    }
}

Solution:
Avoid using global variables, make reasonable use of memory pools, and use structures pointer to the body instead of copying.

Question 3: How to improve the responsiveness of Golang programs?

Code example:

func handleRequest(w http.ResponseWriter, r *http.Request) {
    // 耗时的处理
}

Solution:
Use goroutine or channel to execute time-consuming tasks in parallel and use Caching and indexing improve query performance.

Question 4: How to reduce the network delay of Golang programs?

Code example:

func getRemoteData(url string) ([]byte, error) {
    resp, err := http.Get(url)
    if err != nil {
        return nil, err
    }
    defer resp.Body.Close()

    body, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        return nil, err
    }
    return body, nil
}

Solution:
Use connection pooling to reduce duplicate network connections, leverage CDN or edge Calculate the distance to the user and cache it locally if possible.

Question 5: How to optimize the logging performance of Golang programs?

Code example:

import log "github.com/sirupsen/logrus"

func main() {
    log.Info("程序已启动")
}

Solution:
Use a logging framework such as logrus or zap, and configure the appropriate Log level and output format. Consider using asynchronous logging to avoid blocking business logic.

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