tailscale/wgengine/rusage_nowindows.go

30 lines
592 B
Go

// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !windows
package wgengine
import (
"runtime"
"syscall"
)
func rusageMaxRSS() float64 {
var ru syscall.Rusage
err := syscall.Getrusage(syscall.RUSAGE_SELF, &ru)
if err != nil {
return 0
}
rss := float64(ru.Maxrss)
if runtime.GOOS == "darwin" {
rss /= 1 << 20 // ru_maxrss is bytes on darwin
} else {
// ru_maxrss is kilobytes elsewhere (linux, openbsd, etc)
rss /= 1 << 10
}
return rss
}