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30 lines
589 B
Go
30 lines
589 B
Go
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// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !windows
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package wgengine
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import (
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"runtime"
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"syscall"
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)
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func rusageMaxRSS() float64 {
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var ru syscall.Rusage
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err := syscall.Getrusage(syscall.RUSAGE_SELF, &ru)
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if err != nil {
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return 0
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}
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rss := float64(ru.Maxrss)
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if runtime.GOOS == "darwin" {
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rss /= 1 << 20 // ru_maxrss is bytes on darwin
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} else {
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// ru_maxrss is kilobytes elsewhere (linux, openbsd, etc)
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rss /= 1024
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}
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return rss
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}
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