mirror of
https://gitcode.com/JianFeeeee/HomeAgent.git
synced 2026-09-21 17:38:10 +00:00
304cad0648
- docs/zh/架构迁移评估.md: C ABI→子进程+共享内存完整迁移论证(1621行) - docs/zh/experiments/: 18项可复跑可行性实验(架构评估的所有数字来源) - plan.md §11: 11.1~11.9 插件架构缺陷修复清单(唯一权威编号) - main 保持干净,本批次为 update 特性分支的整改起点
56 lines
1.6 KiB
Go
56 lines
1.6 KiB
Go
//go:build ignore
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package main
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import (
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"fmt"
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"os"
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"os/exec"
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"strconv"
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"strings"
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"time"
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)
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func pssKB(pid int) int {
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b, err := os.ReadFile(fmt.Sprintf("/proc/%d/smaps_rollup", pid))
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if err != nil { return 0 }
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for _, l := range strings.Split(string(b), "\n") {
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if strings.HasPrefix(l, "Pss:") {
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f := strings.Fields(l)
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n, _ := strconv.Atoi(f[1]); return n
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}
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}
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return 0
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}
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func threads(pid int) int {
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e, _ := os.ReadDir(fmt.Sprintf("/proc/%d/task", pid)); return len(e)
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}
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func main() {
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fmt.Println("=== 实验 5：17 个 Go 子进程插件的真实常驻开销（PSS 计入共享页去重）===")
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var cmds []*exec.Cmd
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for i := 0; i < 17; i++ {
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c := exec.Command("./plugbin")
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c.Stdin, _ = os.Open(os.DevNull)
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if err := c.Start(); err != nil { fmt.Println("start:", err); return }
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cmds = append(cmds, c)
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}
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time.Sleep(1500 * time.Millisecond)
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totalPss, totalThreads := 0, 0
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for _, c := range cmds {
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totalPss += pssKB(c.Process.Pid)
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totalThreads += threads(c.Process.Pid)
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}
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fmt.Printf("17 进程合计: PSS = %.1f MB, 线程 = %d\n", float64(totalPss)/1024, totalThreads)
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fmt.Printf("单进程均摊: PSS = %.2f MB, 线程 = %.1f\n",
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float64(totalPss)/1024/17, float64(totalThreads)/17)
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fmt.Printf("\n对照 homed 当前（单进程装 17 个 .so）:\n")
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// 找 homed
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out, _ := exec.Command("pgrep", "-x", "homed").Output()
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if p := strings.TrimSpace(string(out)); p != "" {
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pid, _ := strconv.Atoi(strings.Fields(p)[0])
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fmt.Printf(" homed PSS = %.1f MB, 线程 = %d\n", float64(pssKB(pid))/1024, threads(pid))
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}
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for _, c := range cmds { c.Process.Kill(); c.Wait() }
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}
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