Detailed analysis of the improvements in Golang 1.6

Golang is a programming language developed by Google and has become increasingly popular among developers in recent years. On February 17, 2016, Golang officially released an update to version 1.6. This article will provide a detailed analysis of the improvements in Golang 1.6.

1. HTTP-2 implementation

HTTP/2 is a network protocol that can significantly improve web page loading speed and performance. In Golang 1.6, the HTTP/2 protocol is officially implemented. Users can enable HTTP/2 by adding the "-http2" option in Golang 1.6 to achieve more efficient network transmission.

2. Escape Analysis

Escape analysis is a new feature in Golang 1.6. Escape analysis can help developers quickly identify some performance bottlenecks in the program to optimize the code. Escape analysis mainly analyzes whether variables in the program will escape to the heap. When determining whether to perform escape analysis, Golang 1.6 introduced the tool "-gcflags='-m'" to enable escape analysis.

3. Improvements to Cgo

Cgo is a tool used in Golang to interact with the C language. In Golang 1.6, many improvements have been made to Cgo, making it more convenient to use Cgo for cross-language programming. One of the biggest improvements is that Cgo can now use the net/http package from the Go standard library. This makes it easier to handle HTTP requests and responses, simplifying cross-language programming.

4. GOMAXPROCS default setting

In previous Golang versions, the default value of GOMAXPROCS was the number of CPUs. In Golang 1.6, the default value of GOMAXPROCS was changed to 1. Such changes avoid some incorrect settings and reduce some resource usage, thus improving the performance of the program.

5. asm Help

The asm package is new in Golang 1.6 for embedding assembly code in Go code. This new package helps developers more closely integrate assembly code with Go code, thereby improving program performance and readability.

6. Memory Recycling

In Golang 1.6, the performance of the garbage collector has been significantly improved, largely due to the use of better memory recycling algorithm. After using the new memory recovery algorithm, the performance of the garbage collector can be increased to more than twice that of the previous one.

Summary

In Golang 1.6, many important improvements have been implemented. These improvements can help developers better utilize the features of the Golang language, thereby improving program performance and readability. It is worth mentioning that as Golang continues to develop, we are also looking forward to the implementation of more excellent features.

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