6
修改 go websocket server 启动方式, 内存占用立省 40% !
source link: https://www.v2ex.com/t/935912
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最近发布了 gws v1.4.7 更新, 支持从 tcp conn 直接解析 websocket 协议, 降低内存占用. 大部分人使用 go websocket server, 都是复用的 http server, 这种劫持http连接升级的方式, 最大的弊端就是浪费内存. 由于 go http hijack 的缺陷, 一些内存一直得不到释放, 大概每个连接 10KB. 测试 10000 个连接的场景, 换用 Demo2 方式, 内存占用立省 42.86%!
Demo 1: hijack
package main
import (
"github.com/lxzan/gws"
"log"
"net/http"
)
func main() {
upgrader := gws.NewUpgrader(new(gws.BuiltinEventHandler), nil)
http.HandleFunc("/connect", func(writer http.ResponseWriter, request *http.Request) {
socket, err := upgrader.Accept(writer, request)
if err != nil {
log.Printf(err.Error())
return
}
go socket.Listen()
})
if err := http.ListenAndServe(":3000", nil); err != nil {
log.Fatalf(err.Error())
}
}
Demo 2: direct
package main
import (
"github.com/lxzan/gws"
"log"
)
func main() {
srv := gws.NewServer(new(gws.BuiltinEventHandler), nil)
if err := srv.Run(":3001"); err != nil {
log.Panicln(err.Error())
}
}
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