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How much CPU resources does apcupsd use?

April 26, 2017apcupsd CPU Resources

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How much CPU resources does apcupsd use?

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Depending on your CPU speed, you may see more or less of the CPU consumed by apcupsd. On a 400MHz Unix system, the CPU usage should fall well below 0.1%. On slower systems, the percentage will increase proportionally to the decrease in the CPU speed. On a 400Mhz Win98 machine, the CPU usage will be on the order of 0.5-1.0%. This is higher than for Unix systems. However, compared to the 30% CPU usage by APC’s PowerChute (the version on the CDROM shipped with my UPS), apcupsd’s 0.5-1.0% is very modest.