[smueller1234]

See also boulos' comment:

"As for 224, we've always reserved threads on each host for I/O and so on. Figure 2 from the Snap paper [1] is probably the best public reference. We also don't make it clear (on purpose) what size the underlying host processors are, though you can clearly guesstimate pretty easily."

Ie. if there's even one thread reserved on the host, your speculation comes to naught. Sorry.