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This works and can be useful for
debugging/benchmarking/low power use
$ nproc
4
$ echo 0 | sudo tee /sys/devices/system/cpu/cpu3/online
0
$ echo 0 | sudo tee /sys/devices/system/cpu/cpu2/online
0
$ echo 0 | sudo tee /sys/devices/system/cpu/cpu1/online
0
$ nproc
1
Signed-off-by: Dom Cobley <[email protected]>
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