I think that we need to tackle the absurd loss of
performance that any Windows HVM incurs with more than one processor. I have
measured it and it is amazing. I have an application that opens 15 independent network
clients, and with one single processor and the Standard PC Hal, it takes a
little over a minute to load the 15 clients and also to register with the SIP provider.
If I leave that unchanged, I mean “ceteris paribus” , and only
change the HAL to ACPI and add 8 processors, then the same operation takes over
10 minutes. Hello!!! I am using the GPLVL drivers from James Harper. Right now
I am about to test the MPS –Non-ACPI HAL, but the driver still create a
BSOD. Maybe the problem is only ACPI, and not MPS, who knows. In any case, what
can we do so any Windows virtual machine can achieve a “normal”
performance, I mean, a linear performance when using more processors and not
this declining curve that can kill any host.
Federico
