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// Copyright 2014 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
// +build ignore
package utils
import (
"os"
"runtime"
)
var gomaxprocs = runtime.GOMAXPROCS
var numCPU = runtime.NumCPU
// UseMultipleCPUs sets GOMAXPROCS to the number of CPU cores unless it has
// already been overridden by the GOMAXPROCS environment variable.
func UseMultipleCPUs() {
if envGOMAXPROCS := os.Getenv("GOMAXPROCS"); envGOMAXPROCS != "" {
n := gomaxprocs(0)
logger.Debugf("GOMAXPROCS already set in environment to %q, %d internally",
envGOMAXPROCS, n)
return
}
n := numCPU()
logger.Debugf("setting GOMAXPROCS to %d", n)
gomaxprocs(n)
}
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