55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
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package speed
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import (
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"io/ioutil"
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"os"
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"runtime"
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"strings"
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)
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// cpuModelName returns the "model name" acc. to /proc/cpuinfo, or ""
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// on error.
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//
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// Examples: On my desktop PC:
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//
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// $ grep "model name" /proc/cpuinfo
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// model name : Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz
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//
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// --> Returns "Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz".
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//
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// On a Raspberry Pi 4:
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//
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// $ grep "model name" /proc/cpuinfo
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// (empty)
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// $ grep Hardware /proc/cpuinfo
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// Hardware : BCM2835
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//
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// --> Returns "BCM2835"
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func cpuModelName() string {
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if runtime.GOOS != "linux" {
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return ""
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}
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f, err := os.Open("/proc/cpuinfo")
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if err != nil {
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return ""
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}
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content, err := ioutil.ReadAll(f)
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if err != nil {
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return ""
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}
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lines := strings.Split(string(content), "\n")
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// Look for "model name", then for "Hardware" (arm devices don't have "model name")
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for _, want := range []string{"model name", "Hardware"} {
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for _, line := range lines {
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if strings.HasPrefix(line, want) {
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parts := strings.SplitN(line, ":", 2)
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if len(parts) != 2 {
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continue
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}
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return strings.TrimSpace(parts[1])
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}
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}
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}
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return ""
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}
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