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71029cea2d
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
24 lines
596 B
Go
24 lines
596 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package logger
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import (
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"fmt"
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"runtime"
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)
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// RusagePrefixLog returns a Logf func wrapping the provided logf func that adds
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// a prefixed log message to each line with the current binary memory usage
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// and max RSS.
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func RusagePrefixLog(logf Logf) Logf {
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return func(f string, argv ...any) {
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var m runtime.MemStats
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runtime.ReadMemStats(&m)
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goMem := float64(m.HeapInuse+m.StackInuse) / (1 << 20)
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maxRSS := rusageMaxRSS()
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pf := fmt.Sprintf("%.1fM/%.1fM %s", goMem, maxRSS, f)
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logf(pf, argv...)
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}
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}
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