使用Golang我正在尝试查找/编写一个函数,该函数将返回Linux系统的CPU套接字数,每个插槽的内核数和每个内核的线程数。例如,服务器可能有2个CPU,每个CPU有4个内核,超线程,每个CPU可以处理8个线程。
示例输出:
{
"CPUSockets": "2",
"CoresPerSocket": "4",
"ThreadsPerCore": "2"
}
问题:您知道可以提供此信息的任何Go Package或伪代码吗?
注意:我已经查看了psutil的各种go实现,但我找不到一个返回套接字数量或区分内核和线程的实现。运行lscpu
可以非常方便地访问我想要的数据,但我不知道如何使用Go访问它。
答案 0 :(得分:1)
我最终搞清楚了,见下文:
package main
import (
"encoding/json"
"fmt"
"os/exec"
"strconv"
"strings"
)
type CPUInfo struct {
Sockets int32 `json:"sockets"`
CoresPerSocket int32 `json:"cores_per_socket"`
ThreadsPerCore int32 `json:"threads_per_core"`
}
func main() {
out, _ := exec.Command("lscpu").Output()
outstring := strings.TrimSpace(string(out))
lines := strings.Split(outstring, "\n")
c := CPUInfo{}
for _, line := range lines {
fields := strings.Split(line, ":")
if len(fields) < 2 {
continue
}
key := strings.TrimSpace(fields[0])
value := strings.TrimSpace(fields[1])
switch key {
case "Socket(s)":
t, _ := strconv.Atoi(value)
c.Sockets = int32(t)
case "Core(s) per socket":
t, _ := strconv.Atoi(value)
c.CoresPerSocket = int32(t)
case "Thread(s) per core":
t, _ := strconv.Atoi(value)
c.ThreadsPerCore = int32(t)
}
}
CPUInfoJSON, _ := json.MarshalIndent(c, "", " ")
fmt.Println(string(CPUInfoJSON))
}
输出:
tbenz9@ubuntu-dev: go run socket.go
{
"sockets": 1,
"cores_per_socket": 2,
"threads_per_core": 2
}