4 ms·

You mean Fast user switching? http://en.wikipedia.org/wiki/Fast_user_switching http://en.wikipedia.org/wiki/Fast_user_switching

• groby_b 15y ago
  I mean fast user switching on a resource-constrained portable device. There's a bit of a difference in terms of how to do it. (See also my above post listing some of the issues)
  • zokier 15y ago
    Current gen mobile phones are already more powerful than my first Windows XP desktop. I don't think computing resources are a limiting factor here.
    • groby_b 15y ago
      And your XP desktop actually worked well with fast user switching? On an XP minspec machine? Or even recommended specs? There was a reason it was Powertoys only. Not to mention that your XP machine had a HDD as a backing store for virtual memory. You could safely page out an entire session. Not so for phone OS's, AFAIK. (I know iOS doesn't have a backing store. Haven't checked Android, but I seriously doubt it) Not to mention we've only very recently reached specs that make this doable. The iPhone 3GS (not that old) did have a 600MHz processor and 256MB of RAM. That's pretty close to an XP recommended spec, IIRC. Given that your XP machine wasn't running on a battery, and wasn't busy in the background doing phone-y things, you can see where resources are getting tight. Phones are just getting there, spec-wise. I'm sure sooner or later we will see a guest mode. The 'when', IMHO, hinges more on solving the UX issues, since specs always march on.