Multi tasking with the iPhone 3GS

Jul 13
2009
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With the release of the iPhone 3GS, Apple demoed and promised a few features such as video recording and editing, voice control, faster Safari and more. They also stressed that this is the fastest and most powerful iPhone yet, as per their tagline for the 3GS. What Apple usually tends to hide is the actual specs sheet in terms of processor, RAM, graphics etc. But thanks to the internet and some curious minds and accidental hands (T-Mobile) it was revealed shortly after the release of the phone. In case you’ve been living under a rock for the past few weeks, it has been revealed that the iPhone 3GS boasts an ARM Cortex A8 600 MHz processor and PowerVR SGX graphics. It also has been upgraded to 256 MB of RAM from 128 MB on previous iPhones. I just got my unit yesterday (a bit late I know) and I have started to play around with it. Jailbreaking took about 5 minutes and so I entered the world of free apps and mods from Cydia. I decided to run some apps and games and push the 3GS’s processor to max out the memory. A video of the multitasking can be seen below.

The OS itself reserves about 100 MB of RAM (up from the 3G and 2G which take up about 75 MB thus making this much faster). That left about 150 MB of RAM to my use. I loaded up a few apps and games and everything worked seamlessly. I was able to let the games and apps run in the background using the Backgrounder mobile substrate add on from Cydia. When returning to a game, there was very minor difference in performance but still much better than the 3G, nonetheless. I loaded Weathereye, Random Facts, Chalky, Google app, and Phone and Mail was already running as apps, for games I used Assassin’s Creed, MGS Touch and Real Racing, all three of which are rich in graphics and use a lot of memory.

Here is how you can get it like that in the video:

1. Jailbreak iPhone
2. From Cydia download backgrounder, mQuickDo and SBSettings
3. In an app hold the home button for 2 seconds to enable backgrounding
4. Either open the backgrounded app from springboard or use mQuickDo’s app switcher to open it

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Written by Liquid in: iPhone OS |

12 Responses to “Multi tasking with the iPhone 3GS”

  1. July 14th, 2009 at 4:32 AM

    iPhone 3GS Multitasking | iPhone 3GS says:

    [...] sito Hexryde ha pubblicato un video dove mette a dura prova un iPhone 3GS con diverse applicazioni e giochi in [...]

  2. July 14th, 2009 at 2:51 PM

    Vídeos demonstram capacidade multi-tarefa do iPhone 3GS | MacMagazine says:

    [...] primeiro, postado pelo HexRyde, o cara mostra que os 150MB de RAM livres para uso permitem a execução de muita [...]

  3. July 14th, 2009 at 3:07 PM

    STOPB says:

    What is the Full setup you are using to do this. I would like to do the same.

  4. July 14th, 2009 at 4:24 PM

    Liquid says:

    1. Jailbreak iPhone
    2. From Cydia download backgrounder, mQuickDo and SBSettings
    3. In an app hold the home button for? 2 seconds to enable backgrounding
    4. Either open the backgrounded app from springboard or use mQuickDo’s app switcher to open it

  5. July 15th, 2009 at 8:05 AM

    Vídeo que muestra el funcinamiento de varias tareas simultáneas en un iPhone 3Gs | Actualidad iPhone says:

    [...] Hexryde, con el fin de comprender el verdadero poder de los nuevos iPhone 3SG, ha decidido hacer algunos ensayos sobre el nuevo dispositivo de Apple, utilizando el  Backgrounder. [...]

  6. July 15th, 2009 at 8:55 AM

    Vídeo que muestra el funcinamiento de varias tareas simultáneas en un iPhone 3Gs | Programas y juegos para iPhone e iPod says:

    [...] Hexryde, con el fin de comprender el verdadero poder de los nuevos iPhone 3SG, ha decidido hacer algunos ensayos sobre el nuevo dispositivo de Apple, utilizando el  Backgrounder. [...]

  7. July 15th, 2009 at 11:16 AM

    Vídeo que muestra el funcionamiento de varias tareas simultáneas en un iPhone 3Gs | Blog del iPhone says:

    [...] Hexryde, con el fin de comprender el verdadero poder de los nuevos iPhone 3SG, ha decidido hacer algunos ensayos sobre el nuevo dispositivo de Apple, utilizando el Backgrounder. [...]

  8. July 15th, 2009 at 5:51 PM

    » Blog Archive » Multitarea en el iPhone 3Gs says:

    [...] Hexryde, con el fin de comprender el verdadero poder de los nuevos iPhone 3SG, ha decidido hacer algunos ensayos sobre el nuevo dispositivo de Apple, utilizando el  Backgrounder. [...]

  9. July 15th, 2009 at 6:42 PM

    FulliPhone.com » Blog Archive says:

    [...] Hexryde, con el fin de comprender el verdadero poder de los nuevos iPhone 3SG, ha decidido hacer algunas pruebas del nuevo dispositivo de Apple, utilizando el  Backgrounder. [...]

  10. August 6th, 2009 at 4:39 AM

    Nan says:

    Hi there. I tried to do your set up but I cannot install backgrounder 3.0! It simply crashes my mobile substrate and turn it into safe mode! Is there any workaround? Hope you can help me… Thanks!

  11. August 6th, 2009 at 9:41 PM

    Liquid says:

    There are two versions of backgrounder, one for 2.x and one for 3.x make sure you install the correct one, also you should install the latest version of mQuickDo if you are using an older version, it will definitely crash your mobile substrate.

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