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README.md - energy - measure energy usage |
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git clone git://bitreich.org/energy git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws… |
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README.md (527B) |
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1 # energy |
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2 |
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3 `energy` measures the energy consumed while executing a command, |
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4 similarly to how `time(1)` measures time usage. |
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5 |
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6 As per-process energy measurement is not possible, this is done by |
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7 querying hardware counters. Hence the energy usage is the net energy |
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8 usage of the entire system, including other processes. To measure the |
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9 net usage of a command, subtract the energy usage of the system at |
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10 idle (e.g. by measuring the energy usage of `sleep 1` or similar). |
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11 |
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12 See the [manual page](man/energy.1) for more documentation. |
