Mirá, esto fue probado con versiones viejas de Fusion, pero lo posteo porque el resultado es el contrario al que yo hubiera pensado. Aparentemente la máquina virtual supera ampliamente en performance a bootear la partición Boot Camp desde VMWARE. Al parecer lo supera tanto en acceso a disco como en CPU. Lo del acceso a disco no me extraña, una vez hice unos benchmarks con VMWARE Server para Linux, y el acceso más rápido de I/O se daba al usar un disco virtual (archivo) y no al acceder directamente al disco físico.
VMWARE Forum escribió:Well I ran some tests tonight. I will say from the start it's unfair to benchmark a beta which is what 1.1b1 is. I can't publish hard numbers per the VMware EULA and because this is beta.
What I compared is the VMware Boot Camp Partition with Windows XP SP2 configured as 256 MB, no connected peripherals (CD/DVD disconnected), 1 network adapter in NAT mdoe, no 3D, vs.
a newly built WinXP SP2 Fusion VM, 256MB, no connected peripherals (CD/DVD disconnected), 1 NIC in NAT mode, no 3D.
The virtual disk for the Fusion VM is a pre-allocated IDE disk, defragged on the host and defragged internally.
What PassMark Performance Test v6.1 showed is the Fusion VM scored much higher in CPU and Disk. The CPU mark surprised me. I built my Fusion VM with 2x processors and I looked at the BC config and it was set to 1 CPU. I figured that was it, so I reconfigured the Boot Camp VM for 2 processors. I ran the CPU tests again and there was still a 2x difference. I deleted the enter Boot Camp VM bundle and let Fusion re-build it and it defaults to 1 CPU, so I changed it back to 2 CPUs. The VM came up and wanted to install the Tools so I let it repair the tools, reboot again. The PassMark CPU mark rating for the Boot Camp VM did not improve. I looked in device manager and two processors are in play under an ACPI Multiprocessor HAL, so I can't explain this. I verified through Activity Monitor that the Boot Camp VM is not using both cores during CPU test as it should be. If someone can confirm this or explain, I'm all ears.
On disk, this should have been a straight Boot Camp partition, which by definition is a flat host partition vs. a pre-allocated host file. Again the Fusion VM substantially outperformed the Boot Camp partition VM. I attribute this to the driver VMware uses to access the host partition. Maybe it doesn't cache as well as OS X does, I'm not sure. i assume if IDE does this well SCSI would only get better or at least remain the same.
If you are willing to leave the Boot Camp partition behind, based on these results (in a beta*) a clean new Fusion VM is the better option.
Un dato interesante, si bien al parecer no cambió mucho los resultados, es que por defecto Fusion le pone un CPU solo virtual a la máquina virtual Boot Camp, es decir que yo diría que conviene ponerle que use dos CPU virtuales teniendo procesadores Dual Core (lógicamente no aplica para Macs Core Solo). (Edit: en mi caso si mejoró la performance ponerle 2 CPU virtuales, se notó bastante pero lo quiero confirmar con algún benchmark para Windows).
Ref: http://communities.vmware.com/message/762780;jsessionid=0325FBF3318561D693FC569DB5A99167u
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