Linked by Thom Holwerda on Wed 7th Apr 2010 22:06 UTC
Games Good times, good times. Sony received a ton of deserved flak after it announced it would remove the PlayStation 3's "Install other OS" feature, despite advertising the machine with said feature, and despite promising only a few weeks earlier not to remove the feature. iPhone and PS3 hacker George "Geohot" Hotz promised to restore the feature - and less than a week later, he delivers.
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RE: slim surprise
by twitterfire on Thu 8th Apr 2010 12:46 UTC in reply to "slim surprise"
twitterfire
Member since:
2008-09-11


I understood that one of the ways Sony saved costs for the slim was that it didn't include the hypervisor that made the OtherOS feature possible.


You're talking about a hypervisor. I didn't know that PS3 used a hypervisor in order to run other oses. It means that if you run another Os on PS3, it will run emulated? If so, I can't see how PS3 was used in high performance computing...

Reply Parent Score: 1

RE[2]: slim surprise
by jasutton on Thu 8th Apr 2010 13:11 in reply to "RE: slim surprise"
jasutton Member since:
2006-03-28

No, the hypervisor means the Other OSes were virtualized not emulated. The most basic difference is that CPU instructions in emulation are carried out by software, while in virtualization CPU instructions are mostly untouched by software and executed directly by the host CPU. Of course, in virtualization, there is still some level of hardware emulation (sound, video, and network hardware are commonly emulated).

Edited 2010-04-08 13:12 UTC

Reply Parent Score: 1

jabbotts Member since:
2007-09-06

My understanding was that it was an emulation; your not seeing the raw cell processor through your OtherOS install. If this is correct then even with the emulation layer in place, the processor ran the guest OS fast enough to make it economical as a clustering node. It's an area of hardware I've only been able to watch second hand though so someone who knows the details could help here.

Reply Parent Score: 2