3 ms·
but the overhead for I/O is much higher Hardware virtualized I/O is a thing now as well, and in that case as well the overhead has shrunk to marginal. Add exte
by personZ 12y ago
but the overhead for I/O is much higher
Hardware virtualized I/O is a thing now as well, and in that case as well the overhead has shrunk to marginal. Add external storage (iSCSI), and things get much more complex.
Much of the argument about virtualization is about ten years+ old. It once represented a significant additional overhead, but that simply isn't true at all now.
- wmf 12y agoLooking at it from a public cloud perspective, I doubt we'll ever be able to use SR-IOV. By the time a particular function has been driven into hardware there are new functions we need that aren't in hardware, like sophisticated overlay networking.