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August 29, 2015 14:02
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'last -d' is REALLY slow. See http://unix.stackexchange.com/questions/138985/last-d-is-really-slow
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| $ time last > /dev/null | |
| real 0m0.006s | |
| user 0m0.004s | |
| sys 0m0.004s | |
| $ time last -i > /dev/null | |
| real 0m0.005s | |
| user 0m0.008s | |
| sys 0m0.000s | |
| $ time last -d > /dev/null | |
| real 5m22.958s | |
| user 0m0.012s | |
| sys 0m0.036s |
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