energy.1 - energy - measure energy usage
HTML git clone git://bitreich.org/energy git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/energy
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energy.1 (871B)
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1 .Dd 2023
2 .Dt ENERGY 1
3 .Os
4 .
5 .Sh NAME
6 .Nm energy
7 .Nd measure energy usage of command
8 .
9 .Sh SYNOPSIS
10 .Nm
11 .Bk -words
12 .Ar COMMAND...
13 .Ek
14 .
15 .Sh DESCRIPTION
16 .Bd -filled
17 .Nm
18 shows the energy usage of a command, similarly to how
19 .Xr time 1
20 shows the time usage. The energy usage is printed to stderr and
21 reported in joules.
22 .Nm
23 automatically attempts to use whatever sensors are available.
24 Battery-based measurements are only used if the battery is
25 discharging.
26 .
27 .Sh BUGS
28 Yes.
29 .Nm
30 depends crucially on hardware counters, and there is no guarantee
31 these are an accurate reflection of the actual physical energy usage.
32 Apart from plain inaccuracy, the available counters may cover only a
33 subset of the hardware available in the system, and may not count the
34 energy usage of e.g. graphics cards or storage devices.
35 .
36 .Sh LICENSE
37 This program is released under the GPLv3 or later.