I would appreciate any feedback about the idea of implementing a new
load function to ask about how saturated is your reactor.
I have a proof of concept  of how the load function might be
implemented in the Asyncio python loop.
The idea is to provide a method that can be used to ask about the load
of the reactor in a specific time, this implementation returns the
load taking into account the last 60 seconds but it can easily return
the 5m and 15minutes ones u others.
This method can help services built on to of Asyncio to implement back
pressure mechanisms that take into account a metric coming from the
loop, instead of inferring the load using other metrics provided by
external agents such as the CPU, load average u others.
Nowadays exists some alternatives for other languages that address
this situation using the lag of a scheduler callback, produced by
saturated reactors. The most known implementation is toobusy  a
IMHO the solution provided by tobusy has a strong dependency with the
hardware needing to tune the maximum lag allowed in terms of
milliseconds . in the POF presented the user can use an exact value
meaning the percentage of the load, perhaps 0.9
Any comment would be appreciated.
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