Is the BHyVe guest as suitable for high-performance disk IO as the host?

Tinker tinkr at
Sat May 9 16:57:51 UTC 2015


For an environment with very heavy parallell IO, should the performance 
be just as good in a BHyVe guest as in the FreeBSD host environment?

What I thought of is that I guess within the host environment, the 
storage subsystem should have all kinds of optimizations like an 
internal work queue that pushes lots of work alinearly/asynchronously to 
the disk controller and this way allows it, in turn, to give all its 

Does the virtualized disk interface carry over all that goodness to the 

( seems to say yes, presuming you 
configure BHyVe to run the virtual disk in AHCI mode?)


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