CPU vs IO Bound
Cluster debates whether workloads and applications are primarily CPU-bound or IO-bound, discussing CPU utilization, idling while waiting for IO, context switching overheads, and efficiency in process scheduling.
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Because not everything is CPU bound.
no they said the opposite that they are surprisingly cpu-bound.
They may well be CPU bound because of context switching.
Pretty sure cpu is not a limiting factor here
Unless you are doing disk io and most of your CPU cycles spent on it.
The amount of CPU waste would be negligible.
Most applications are IO bound, not CPU bound. So wasted cycles aren't always that big of a deal.
Consuming a lot of CPU time and forcing kernel to do that are separate things.
It does, think twice about the CPU flow.
Perhpas he means it's a waste of cpu time :)