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Remove Vicious as async counterexample 

Vicious has stopped using io.popen since October 2019.
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Nguyễn Gia Phong 2021-08-12 21:12:33 +07:00
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docs/90-FAQ.md
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@ -36,8 +36,7 @@ Do **not** use such functions and prefer `awful.spawn.easy_async`,
fast enough and won't impact the main event loop iteration time, you are wrong.
*Every* calls to `io.open` are impacted by the system `iowait` queue and can
spend hundreds of milliseconds blocked *before* being executed. Note that
some common widget or probe libraries such as
[Vicious](https://github.com/Mic92/vicious) do not follow this
some common widget or probe libraries do not follow this
advice currently and are known to cause input lag on some systems (but not all).
In both case, a warning like: