Fix for #945, cpu temperature is signed.#965
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Added a type conversion to cpu temperature sysctl. Will still collect/report -1 when the value is -1, this is because it should be up to interpretation whether this is the correct value for the system or not. Some drivers will report -1 for cpu temperature. Other sensors will report "an input into the fan control algorithm", i.e. not the actual temperature, but how much fan it wants. Some people cool their machines with liquid nitrogen. Signed-off-by: Derek Marcotte <554b8425@razorfever.net>
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LGTM but maybe extend the comment a bit to explain what exactly is going on there? |
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Let's re-arrange this a little so it's easier to understand. |
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Signed-off-by: Derek Marcotte <554b8425@razorfever.net>
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Codespell ftw!
But LGTM beside that one. |
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collector/cpu_freebsd.go
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| ch <- c.temp.mustNewConstMetric(float64(temp-2732)/10, lcpu) | ||
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| // Temp is a signed integer in deci-degrees Kelvin. | ||
| // Cast uint32 to int32 and convert to float64 degrees Celcius. |
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Codespell error :-)
./collector/cpu_freebsd.go:143: Celcius ==> Celsius
Signed-off-by: Derek Marcotte <554b8425@razorfever.net>
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* Fix for prometheus#945, cpu temperature is signed. Added a type conversion to cpu temperature sysctl. Will still collect/report -1 when the value is -1, this is because it should be up to interpretation whether this is the correct value for the system or not. Some drivers will report -1 for cpu temperature. Other sensors will report "an input into the fan control algorithm", i.e. not the actual temperature, but how much fan it wants. Some people cool their machines with liquid nitrogen. Signed-off-by: Derek Marcotte <554b8425@razorfever.net>
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Added a type conversion to cpu temperature sysctl. Will still collect/report -1 when the value is -1, this is because it should be up to interpretation whether this is the correct value for the system or not.
Some drivers will report -1 for cpu temperature. Other sensors will report "an input into the fan control algorithm", i.e. not the actual temperature, but how much fan it wants. Some people cool their machines
with liquid nitrogen.
Closes: #945