[ale] OT: VM network speed 1/2 of host and other machines on the network

[JD]

I don't know anything about Macs, however ...

11.5 what? units do matter.

* Which NIC did you choose?
* Is the vdisk fully allocated?  Sparse disk file performance ... er sucks.
* Were are the files that you're trying to transmit - inside the VM or
on the Host OS? It matters. Accessing the hostOS is slower.
* Do you have the guest additions for the same version of virtualbox
installed?
* How much vRAM? Enough?
* How many vCPUs? Are they busy?

Tips:

a) always select the virtio drivers when possible for NIC and disk.

b) If virtio is not possible, use the Intel PRO/1000 drivers (even if
your hostos is only 100base-tx - YUCK!)

c) if virtio is not possible, use the SATA drivers, not IDE.




On 07/15/2011 09:07 AM, Geoffrey Myers wrote:
> So,
>
> I'm running virtualbox on my mac with Centos as a VM.  Speed tests from 
> any machine on my network including the Mac run around 11.5, whereas the 
> VM running in virtualbox is consistently 4-5.
>
> Anyone?
>